diff --git a/src/components.d.ts b/src/components.d.ts
index dcf02cd27caf1fbb8f840923f7e35172d533b89b..d789f00b6aa0865f3b631b78b257d8b520dbd848 100644
--- a/src/components.d.ts
+++ b/src/components.d.ts
@@ -472,6 +472,26 @@ export namespace Components {
     parentExpanded: boolean;
     url: string;
   }
+  interface HyMenuItemSidebar {
+    ariaExpanded: boolean;
+    depth: number;
+    hasChildren: boolean;
+    inActiveTrail: boolean;
+    isActive: boolean;
+    isActiveChild?: boolean;
+    isDemo: boolean;
+    isHeading: boolean;
+    isParent: boolean;
+    label: string;
+    menuButtonSubmenuExpand?: string;
+    menuIsOpen: boolean;
+    menuItemAlternative: boolean;
+    menuLinkId: string;
+    menuType: MenuType;
+    parentAsHeading: string;
+    parentExpanded: boolean;
+    url: string;
+  }
   interface HyMenuLanguage {
     dataMenuLanguage: MenuLanguage[] | string;
     isMobile: boolean;
@@ -488,6 +508,14 @@ export namespace Components {
   interface HyMenuLevelContainer {
     activeTrailTriggered: boolean;
     depth: number;
+    /**
+     * label for front page for panel first parent
+     */
+    frontLabel: string;
+    /**
+     * Url to front page for panel first parent
+     */
+    frontUrl: string;
     headingItem: any;
     labelFrontPage?: string;
     menuButtonSubmenuExpand?: string;
@@ -502,6 +530,56 @@ export namespace Components {
     labelBack: string;
     labelFrontPage: string;
   }
+  interface HyMenuSidebar {
+    /**
+     * Isdemo
+     */
+    isDemo: boolean;
+    /**
+     * Logo label
+     */
+    logoLabel?: string;
+    /**
+     * Url for logo.
+     */
+    logoUrl?: string;
+    /**
+     * Is menu open boolean.
+     */
+    menuIsOpen: boolean;
+    /**
+     * Menu type. Defaults to sidenav.
+     */
+    menuType: MenuType;
+    /**
+     * Previous panel to be toggled to keep track.
+     */
+    minHeight: any;
+    /**
+     * Upper menus panel boolean.
+     */
+    panelOpen: boolean;
+    /**
+     * Label for panel toggle button.
+     */
+    panelToggleAriaLabel?: string;
+    /**
+     * Label for panel toggle button.
+     */
+    panelToggleCloseAriaLabel?: string;
+    /**
+     * Label for panel toggle button.
+     */
+    panelToggleCloseLabel?: string;
+    /**
+     * Label for panel toggle button.
+     */
+    panelToggleLabel?: string;
+    /**
+     * Logo size
+     */
+    size: SiteLogoSize;
+  }
   interface HyParagraphText {
     headerstyle: string;
     placement: string;
@@ -930,6 +1008,11 @@ declare global {
     prototype: HTMLHyMenuItemElement;
     new (): HTMLHyMenuItemElement;
   };
+  interface HTMLHyMenuItemSidebarElement extends Components.HyMenuItemSidebar, HTMLStencilElement {}
+  var HTMLHyMenuItemSidebarElement: {
+    prototype: HTMLHyMenuItemSidebarElement;
+    new (): HTMLHyMenuItemSidebarElement;
+  };
   interface HTMLHyMenuLanguageElement extends Components.HyMenuLanguage, HTMLStencilElement {}
   var HTMLHyMenuLanguageElement: {
     prototype: HTMLHyMenuLanguageElement;
@@ -950,6 +1033,11 @@ declare global {
     prototype: HTMLHyMenuMobileBreadcrumbElement;
     new (): HTMLHyMenuMobileBreadcrumbElement;
   };
+  interface HTMLHyMenuSidebarElement extends Components.HyMenuSidebar, HTMLStencilElement {}
+  var HTMLHyMenuSidebarElement: {
+    prototype: HTMLHyMenuSidebarElement;
+    new (): HTMLHyMenuSidebarElement;
+  };
   interface HTMLHyParagraphTextElement extends Components.HyParagraphText, HTMLStencilElement {}
   var HTMLHyParagraphTextElement: {
     prototype: HTMLHyParagraphTextElement;
@@ -1100,10 +1188,12 @@ declare global {
     'hy-main-content-wrapper': HTMLHyMainContentWrapperElement;
     'hy-menu': HTMLHyMenuElement;
     'hy-menu-item': HTMLHyMenuItemElement;
+    'hy-menu-item-sidebar': HTMLHyMenuItemSidebarElement;
     'hy-menu-language': HTMLHyMenuLanguageElement;
     'hy-menu-language-item': HTMLHyMenuLanguageItemElement;
     'hy-menu-level-container': HTMLHyMenuLevelContainerElement;
     'hy-menu-mobile-breadcrumb': HTMLHyMenuMobileBreadcrumbElement;
+    'hy-menu-sidebar': HTMLHyMenuSidebarElement;
     'hy-paragraph-text': HTMLHyParagraphTextElement;
     'hy-process': HTMLHyProcessElement;
     'hy-process-flow-box': HTMLHyProcessFlowBoxElement;
@@ -1555,6 +1645,30 @@ declare namespace LocalJSX {
     parentExpanded?: boolean;
     url?: string;
   }
+  interface HyMenuItemSidebar {
+    ariaExpanded?: boolean;
+    depth?: number;
+    hasChildren?: boolean;
+    inActiveTrail?: boolean;
+    isActive?: boolean;
+    isActiveChild?: boolean;
+    isDemo?: boolean;
+    isHeading?: boolean;
+    isParent?: boolean;
+    label?: string;
+    menuButtonSubmenuExpand?: string;
+    menuIsOpen?: boolean;
+    menuItemAlternative?: boolean;
+    menuLinkId?: string;
+    menuType?: MenuType;
+    onAddBreadcrumb?: (event: CustomEvent<any>) => void;
+    onMenuContainerActiveTrail?: (event: CustomEvent<any>) => void;
+    onMenuContainerToggled?: (event: CustomEvent<any>) => void;
+    onRouteClicked?: (event: CustomEvent<any>) => void;
+    parentAsHeading?: string;
+    parentExpanded?: boolean;
+    url?: string;
+  }
   interface HyMenuLanguage {
     dataMenuLanguage?: MenuLanguage[] | string;
     isMobile?: boolean;
@@ -1571,6 +1685,14 @@ declare namespace LocalJSX {
   interface HyMenuLevelContainer {
     activeTrailTriggered?: boolean;
     depth?: number;
+    /**
+     * label for front page for panel first parent
+     */
+    frontLabel?: string;
+    /**
+     * Url to front page for panel first parent
+     */
+    frontUrl?: string;
     headingItem?: any;
     labelFrontPage?: string;
     menuButtonSubmenuExpand?: string;
@@ -1586,6 +1708,56 @@ declare namespace LocalJSX {
     labelFrontPage?: string;
     onRemoveBreadcrumb?: (event: CustomEvent<any>) => void;
   }
+  interface HyMenuSidebar {
+    /**
+     * Isdemo
+     */
+    isDemo?: boolean;
+    /**
+     * Logo label
+     */
+    logoLabel?: string;
+    /**
+     * Url for logo.
+     */
+    logoUrl?: string;
+    /**
+     * Is menu open boolean.
+     */
+    menuIsOpen?: boolean;
+    /**
+     * Menu type. Defaults to sidenav.
+     */
+    menuType?: MenuType;
+    /**
+     * Previous panel to be toggled to keep track.
+     */
+    minHeight?: any;
+    /**
+     * Upper menus panel boolean.
+     */
+    panelOpen?: boolean;
+    /**
+     * Label for panel toggle button.
+     */
+    panelToggleAriaLabel?: string;
+    /**
+     * Label for panel toggle button.
+     */
+    panelToggleCloseAriaLabel?: string;
+    /**
+     * Label for panel toggle button.
+     */
+    panelToggleCloseLabel?: string;
+    /**
+     * Label for panel toggle button.
+     */
+    panelToggleLabel?: string;
+    /**
+     * Logo size
+     */
+    size?: SiteLogoSize;
+  }
   interface HyParagraphText {
     headerstyle?: string;
     placement?: string;
@@ -1795,10 +1967,12 @@ declare namespace LocalJSX {
     'hy-main-content-wrapper': HyMainContentWrapper;
     'hy-menu': HyMenu;
     'hy-menu-item': HyMenuItem;
+    'hy-menu-item-sidebar': HyMenuItemSidebar;
     'hy-menu-language': HyMenuLanguage;
     'hy-menu-language-item': HyMenuLanguageItem;
     'hy-menu-level-container': HyMenuLevelContainer;
     'hy-menu-mobile-breadcrumb': HyMenuMobileBreadcrumb;
+    'hy-menu-sidebar': HyMenuSidebar;
     'hy-paragraph-text': HyParagraphText;
     'hy-process': HyProcess;
     'hy-process-flow-box': HyProcessFlowBox;
@@ -1883,12 +2057,14 @@ declare module '@stencil/core' {
         JSXBase.HTMLAttributes<HTMLHyMainContentWrapperElement>;
       'hy-menu': LocalJSX.HyMenu & JSXBase.HTMLAttributes<HTMLHyMenuElement>;
       'hy-menu-item': LocalJSX.HyMenuItem & JSXBase.HTMLAttributes<HTMLHyMenuItemElement>;
+      'hy-menu-item-sidebar': LocalJSX.HyMenuItemSidebar & JSXBase.HTMLAttributes<HTMLHyMenuItemSidebarElement>;
       'hy-menu-language': LocalJSX.HyMenuLanguage & JSXBase.HTMLAttributes<HTMLHyMenuLanguageElement>;
       'hy-menu-language-item': LocalJSX.HyMenuLanguageItem & JSXBase.HTMLAttributes<HTMLHyMenuLanguageItemElement>;
       'hy-menu-level-container': LocalJSX.HyMenuLevelContainer &
         JSXBase.HTMLAttributes<HTMLHyMenuLevelContainerElement>;
       'hy-menu-mobile-breadcrumb': LocalJSX.HyMenuMobileBreadcrumb &
         JSXBase.HTMLAttributes<HTMLHyMenuMobileBreadcrumbElement>;
+      'hy-menu-sidebar': LocalJSX.HyMenuSidebar & JSXBase.HTMLAttributes<HTMLHyMenuSidebarElement>;
       'hy-paragraph-text': LocalJSX.HyParagraphText & JSXBase.HTMLAttributes<HTMLHyParagraphTextElement>;
       'hy-process': LocalJSX.HyProcess & JSXBase.HTMLAttributes<HTMLHyProcessElement>;
       'hy-process-flow-box': LocalJSX.HyProcessFlowBox & JSXBase.HTMLAttributes<HTMLHyProcessFlowBoxElement>;
diff --git a/src/components/hy-main/hy-main.scss b/src/components/hy-main/hy-main.scss
index d8b51533c0dff2dc22ef880b08244071456a4962..f4d31815fbc851c1d16be6dd793358932975ee2c 100644
--- a/src/components/hy-main/hy-main.scss
+++ b/src/components/hy-main/hy-main.scss
@@ -1,6 +1,5 @@
 .hy-main {
   display: flex;
-  //margin: var(--gutter-mobile) auto;
   margin: 0 auto;
   max-width: $fullhd;
   padding: 0;
@@ -21,6 +20,8 @@
   }
 
   &.with-sidebar {
+    position: relative;
+
     .layout-content {
       @include breakpoint($medium) {
         margin: 0 auto;
@@ -40,13 +41,19 @@
       display: none;
 
       @include breakpoint($extrawide) {
-        display: block;
-        border-right: 2px dotted var(--grayscale-medium);
+        background: linear-gradient(270deg, #f5f5f5 0%, #f8f8f8 100%);
         display: block;
         max-width: 320px;
         order: 1;
-        padding: var(--gutter-extrawide);
+        padding: var(--gutter-extrawide) 13px;
         width: 20%;
+        height: auto;
+
+        &.menu-is-open {
+          background: var(--grayscale-white);
+          min-height: 100vh;
+          overflow: auto;
+        }
       }
     }
   }
diff --git a/src/components/icon/DotArrowRight.tsx b/src/components/icon/DotArrowRight.tsx
new file mode 100644
index 0000000000000000000000000000000000000000..9ff84c0783b2c979d344b14f03b785d9d3361ce2
--- /dev/null
+++ b/src/components/icon/DotArrowRight.tsx
@@ -0,0 +1,21 @@
+import {h} from '@stencil/core';
+
+function SvgArrowDown(props) {
+  return (
+    <svg viewBox="0 0 26 18" {...props}>
+      <circle id="Oval" fill="#107EAB" cx="8.5" cy="9" r="2"></circle>
+      <g id="Icon/arrow/to_right" transform="translate(10.000000, 0.000000)">
+        <g transform="translate(9.000000, 9.000000) rotate(270.000000) translate(-9.000000, -9.000000) ">
+          <path
+            d="M15.3739539,2.58885408 L9.05563628,10.0114192 L2.62512723,2.58778423 C2.5650068,2.51838293 2.45894051,2.51196471 2.39075562,2.57360208 L0.0533953737,4.68651506 C-0.0121083665,4.74572874 -0.0181566661,4.84589323 0.039753545,4.91243423 L8.93312424,15.1312497 C8.99867166,15.2065661 9.11651053,15.2061936 9.18157232,15.1304643 L17.9609254,4.91164883 C18.018144,4.84504869 18.011809,4.74545823 17.9466045,4.68651506 L15.6092442,2.57360208 C15.5406475,2.51159238 15.4338255,2.5185168 15.3739539,2.58885408 Z"
+            id="Path"
+            transform="translate(9.000000, 8.859375) rotate(-360.000000) translate(-9.000000, -8.859375) "
+          ></path>
+        </g>
+      </g>
+      <circle id="Oval-Copy" fill="#107EAB" cx="2" cy="9" r="2"></circle>
+    </svg>
+  );
+}
+
+export default SvgArrowDown;
diff --git a/src/components/icon/icon.tsx b/src/components/icon/icon.tsx
index ca55788897d5e2fad633166ad4d2f395690571b4..35c38b94740398840c7ef769f9738a8442bf72e1 100644
--- a/src/components/icon/icon.tsx
+++ b/src/components/icon/icon.tsx
@@ -13,6 +13,7 @@ const iconNames: IconName = {
   'hy-icon-caret-down': (p) => <icons.CaretDown {...p} />,
   'hy-icon-caret-left': (p) => <icons.CaretLeft {...p} />,
   'hy-icon-caret-right': (p) => <icons.CaretRight {...p} />,
+  'hy-icon-dot-arrow-right': (p) => <icons.DotArrowRight {...p} />,
   'hy-icon-done': (p) => <icons.Done {...p} />,
   'hy-icon-euro': (p) => <icons.Euro {...p} />,
   'hy-icon-globe': (p) => <icons.Globe {...p} />,
diff --git a/src/components/icon/icons.tsx b/src/components/icon/icons.tsx
index c3eff2d2eaaacb80493947b681c798fb7e1404ed..5818b0cd927f2a069d5dec14b72808868716b19f 100644
--- a/src/components/icon/icons.tsx
+++ b/src/components/icon/icons.tsx
@@ -76,6 +76,7 @@ export {default as Date} from './Date';
 export {default as Discover} from './Discover';
 export {default as Done} from './Done';
 export {default as Dot} from './Dot';
+export {default as DotArrowRight} from './DotArrowRight';
 export {default as Download} from './Download';
 export {default as Drag} from './Drag';
 export {default as Dragbutton} from './Dragbutton';
diff --git a/src/components/icon/readme.md b/src/components/icon/readme.md
index 552318cc9e2a6f74e240646b3ef9c173a601d33b..c42057f3becc0d5f442783211c25543c9e74b0f5 100644
--- a/src/components/icon/readme.md
+++ b/src/components/icon/readme.md
@@ -33,8 +33,11 @@
 - [hy-introduction](../hy-introduction)
 - [hy-link-box](../link-box)
 - [hy-menu-item](../navigation/menu-item)
+- [hy-menu-item-sidebar](../navigation/menu-item-sidebar)
 - [hy-menu-language](../navigation/menu-language)
+- [hy-menu-level-container](../navigation/menu-level-container)
 - [hy-menu-mobile-breadcrumb](../navigation/menu-mobile-breadcrumb)
+- [hy-menu-sidebar](../navigation/menu-sidebar)
 - [hy-quote](../hy-quote)
 - [hy-search-field](../hy-search-field)
 - [hy-shortcuts](../hy-shortcuts)
@@ -67,8 +70,11 @@ graph TD;
   hy-introduction --> hy-icon
   hy-link-box --> hy-icon
   hy-menu-item --> hy-icon
+  hy-menu-item-sidebar --> hy-icon
   hy-menu-language --> hy-icon
+  hy-menu-level-container --> hy-icon
   hy-menu-mobile-breadcrumb --> hy-icon
+  hy-menu-sidebar --> hy-icon
   hy-quote --> hy-icon
   hy-search-field --> hy-icon
   hy-shortcuts --> hy-icon
diff --git a/src/components/navigation/menu-item-sidebar/menu-item-sidebar.scss b/src/components/navigation/menu-item-sidebar/menu-item-sidebar.scss
new file mode 100644
index 0000000000000000000000000000000000000000..f5d48164532657cbf080a5f6af7221efbb56f12e
--- /dev/null
+++ b/src/components/navigation/menu-item-sidebar/menu-item-sidebar.scss
@@ -0,0 +1,194 @@
+.hy-menu-item-sidebar {
+  list-style-type: none;
+  margin-bottom: 6px;
+
+  &--label-container {
+    @include font-size(18px, 22px);
+    @include font-weight($bold);
+    border: 0.5px solid rgba(16, 126, 171, 0.1);
+    box-sizing: border-box;
+    background-color: var(--grayscale-white);
+    color: var(--brand-main-light);
+    display: flex;
+    font-family: var(--main-font-family);
+    justify-content: space-between;
+    min-height: 48px;
+    padding: 0;
+  }
+
+  &:focus {
+    outline-offset: 4px;
+  }
+
+  &:hover {
+    color: var(--brand-main-nearly-black);
+  }
+  > .hy-menu-level-container.hy-menu-level-container--sidepanel {
+    display: none;
+  }
+  &.hy-menu-item-sidebar--sidepanel.in-active-trail {
+    > .hy-menu-item-sidebar--label-container {
+      border: 1px solid var(--brand-main-light);
+      text-decoration: none;
+
+      > .hy-menu-item__label__icon {
+        border: none;
+        background-color: var(--brand-main-light);
+
+        svg {
+          fill: var(--grayscale-white);
+        }
+      }
+    }
+
+    > .hy-menu-level-container--sidepanel {
+      display: flex;
+    }
+  }
+
+  &:not(.is-parent):not(.is-parent--sub-level).is-active-item {
+    > .hy-menu-item-sidebar--label-container {
+      background: var(--grayscale-white) !important;
+      text-decoration: none;
+      > .hy-menu-item-sidebar__label {
+        border: 1px solid var(--brand-main-light);
+        border-right: 0;
+      }
+      > .hy-menu-item__label__icon {
+        background-color: var(--brand-main-light);
+        border: none;
+        margin-left: 4px;
+
+        svg {
+          fill: var(--grayscale-white);
+        }
+      }
+    }
+  }
+
+  &__label {
+    align-items: center;
+    color: var(--brand-main-light);
+    display: flex;
+    hyphens: auto;
+    padding: 8px 10px 8px 20px;
+    text-decoration: none;
+    width: 100%;
+    word-break: break-word;
+  }
+
+  .hy-menu-item__label__icon {
+    border-top: 0;
+    border-right: 0;
+    border-bottom: 0;
+    background: none;
+    border-left: 1px dotted var(--brand-main-light);
+    color: var(--brand-main-light);
+    display: inline-block;
+    position: relative;
+    width: 61.5px;
+    min-height: 48px;
+
+    svg {
+      position: absolute;
+      left: 50%;
+      top: 50%;
+      transform: translate(-50%, -50%);
+    }
+
+    &:hover {
+      cursor: pointer;
+    }
+
+    &:focus {
+      outline: none;
+      box-shadow: 0 0 1px 1px rgba(55, 148, 224, 0.5);
+      border-radius: none;
+    }
+  }
+
+  &.is-parent {
+    align-items: flex-start;
+    background: none;
+    display: flex;
+    flex-direction: row;
+    justify-content: flex-start;
+    margin-bottom: 10px;
+    padding-bottom: 10px;
+    width: calc(100% - 25px);
+    max-width: 280px;
+
+    .hy-menu-item-sidebar--label-container {
+      align-items: flex-start;
+      background: none;
+      border: none;
+      color: var(--brand-main-light);
+      display: flex;
+
+      .hy-menu-item-sidebar__label {
+        @include font-size(26px, 26px);
+        font-family: var(--main-font-family);
+        font-weight: bold;
+        letter-spacing: -0.81px;
+        margin: 0 0 0 0.5rem;
+        padding: 0;
+        text-decoration: none;
+      }
+    }
+
+    &:hover {
+      color: var(--brand-main-nearly-black);
+
+      .hy-menu-item__parent__icon__svg {
+        fill: var(--brand-main-nearly-black);
+      }
+    }
+
+    .hy-menu-item__parent__icon {
+      align-items: center;
+      display: flex;
+      flex-direction: row;
+      height: 26px;
+    }
+
+    .hy-menu-item__parent__icon__svg svg {
+      fill: var(--brand-main-light);
+    }
+
+    &.is-parent--sub-level {
+      align-items: flex-end;
+      background: none;
+      border-bottom: 1px solid var(--brand-main-light);
+      display: flex;
+      margin-bottom: 12px;
+      padding-bottom: 18px;
+      position: absolute;
+      transform: translateY(calc(-100% - 12px));
+      width: calc(100% - 25px);
+
+      .hy-menu-item-parent__icon {
+        bottom: 20px;
+        left: -20px;
+        position: absolute;
+      }
+
+      svg {
+        fill: var(--brand-main-light);
+      }
+
+      > .hy-menu-item-sidebar--label-container {
+        align-items: flex-end;
+        margin: 0;
+        padding: 0;
+      }
+    }
+  }
+
+  &.is-current-page {
+    span.hy-menu-item-sidebar__label {
+      border-left: 4px solid var(--grayscale-black);
+      color: var(--grayscale-black);
+      padding: 8px 10px 8px 6px !important;
+    }
+  }
+}
diff --git a/src/components/navigation/menu-item-sidebar/menu-item-sidebar.tsx b/src/components/navigation/menu-item-sidebar/menu-item-sidebar.tsx
new file mode 100644
index 0000000000000000000000000000000000000000..0dc5e683e6d39f7a61d658b374a6fee8400bfc54
--- /dev/null
+++ b/src/components/navigation/menu-item-sidebar/menu-item-sidebar.tsx
@@ -0,0 +1,198 @@
+import {Component, Element, Event, EventEmitter, h, Prop, Listen} from '@stencil/core';
+import {MenuType} from '../../../utils/utils';
+
+@Component({
+  tag: 'hy-menu-item-sidebar',
+  styleUrl: 'menu-item-sidebar.scss',
+  shadow: false,
+})
+export class MenuItemSidebar {
+  @Element() el: HTMLElement;
+  @Event() addBreadcrumb: EventEmitter;
+  @Event() menuContainerActiveTrail: EventEmitter;
+  @Event() menuContainerToggled: EventEmitter;
+  @Event() routeClicked: EventEmitter;
+  @Prop() inActiveTrail: boolean = false;
+  @Prop() isActive: boolean = false;
+  @Prop() isActiveChild?: boolean = false;
+  @Prop() isHeading: boolean = false;
+  @Prop() isParent: boolean = false;
+  @Prop() isDemo: boolean = false;
+  @Prop() menuItemAlternative: boolean = false;
+  @Prop() menuLinkId: string = '';
+  @Prop() menuType: MenuType = MenuType.sidenav;
+  @Prop() menuButtonSubmenuExpand?: string = '';
+  @Prop() menuIsOpen = false;
+  @Prop({mutable: true}) ariaExpanded: boolean = false;
+  @Prop({mutable: true, reflect: true}) depth: number = 0;
+  @Prop({mutable: true}) hasChildren: boolean = null;
+  @Prop({mutable: true}) label: string = '';
+  @Prop({mutable: true}) parentAsHeading: string = '';
+  @Prop({mutable: true, reflect: true}) parentExpanded: boolean = false;
+  @Prop({mutable: true}) url: string = '';
+
+  @Listen('sidebarTopLevelToggle') sidebarTopLevelToggle(e) {
+    if (this.depth !== 1) {
+      return;
+    }
+
+    const body = document.querySelector('body') as HTMLElement;
+    const container = document.querySelector('.hy-menu-sidebar--container') as HTMLElement;
+    const menuItem = e.target.closest('.hy-menu-item-sidebar') as HTMLElement;
+
+    if (container.classList.contains('sidebar-open') && menuItem.classList.contains('is-active-item')) {
+      container.classList.remove('sidebar-open');
+      body.classList.remove('hy-menu-sidebar__no-scroll');
+    } else {
+      container.classList.add('sidebar-open');
+      body.classList.add('hy-menu-sidebar__no-scroll');
+    }
+
+    e.preventDefault();
+  }
+
+  componentWillLoad() {
+    // If is-active class is added by system, add it to menu component as well.
+    if (this.el.classList.contains('is-active')) {
+      this.isActive = true;
+    }
+
+    // Notify breadcrumbs if item is in active trail.
+    if (this.inActiveTrail && !this.isActive) {
+      const currentParent = this.el.parentNode;
+      this.addBreadcrumb.emit({
+        url: this.url,
+        label: currentParent.parentElement.getAttribute('label'),
+        bid: this.menuLinkId,
+      });
+    }
+    if (this.inActiveTrail) {
+      const currentParent = this.el.parentNode as any;
+      if (this.menuType === MenuType.sidepanel) {
+        currentParent.classList.add('is-open');
+      }
+    }
+
+    // If current menu item is active, trigger all parent menuLevelContainer
+    // elements in the same active-trail to open the menu.
+    if (this.isActive) {
+      const getParents = (elem) => {
+        let parents = [];
+        while (elem.parentNode && elem.parentNode.nodeName.toLowerCase() != 'hy-menu-sidebar') {
+          elem = elem.parentNode;
+          parents.push(elem);
+        }
+        return parents;
+      };
+
+      const parents = getParents(this.el);
+      parents.forEach((element) => {
+        if (element.tagName.toLowerCase() === 'hy-menu-item-sidebar') {
+          this.menuContainerActiveTrail.emit({
+            triggerItem: element.getAttribute('menu-link-id'),
+          });
+        }
+      });
+
+      // If side navigation menu item has is-active state, prepare the menu items
+      // for the last children.
+      parents.forEach((element) => {
+        if (element.tagName.toLowerCase() === 'hy-menu-item-sidebar') {
+          element.classList.add('is-hidden--child');
+        }
+      });
+
+      // If current active menu item have children, set the child
+      // menu-level-container open.
+      if (this.el.children.length > 0) {
+        this.el.children[0].setAttribute('class', 'is-open-on-top');
+      }
+    }
+  }
+
+  componentWillRender() {
+    // Assign depth value to current menu item instance; 1st level, 2nd level, etc.
+    this.hasChildren = this.el.getElementsByTagName('hy-menu-level-container').length >= 1;
+    let parentMenuItem = this.el.closest('hy-menu-item-sidebar');
+    let nextParentMenuItem;
+    this.depth = 0;
+    while (parentMenuItem) {
+      nextParentMenuItem = parentMenuItem.parentElement.closest('hy-menu-item-sidebar');
+      if (nextParentMenuItem === parentMenuItem) {
+        break;
+      } else {
+        if (nextParentMenuItem !== null) {
+          this.parentAsHeading = nextParentMenuItem;
+        }
+        parentMenuItem = nextParentMenuItem;
+        this.depth = this.depth + 1;
+      }
+    }
+  }
+
+  render() {
+    let classAttributes = [
+      'hy-menu-item-sidebar',
+      this.menuType ? `hy-menu-item-sidebar--${this.menuType}` : '',
+      this.depth != null ? 'hy-menu-item--level-' + this.depth : '',
+      this.isDemo ? 'is-demo' : '',
+      this.isActive ? 'is-current-page' : '',
+      this.isParent ? 'is-parent' : '',
+      this.hasChildren ? 'has-children' : '',
+      this.inActiveTrail ? 'in-active-trail' : '',
+      this.isActive && this.hasChildren ? 'is-active--heading' : '',
+    ];
+    let anchorClassAttributes = ['hy-menu-item-sidebar__label'];
+    classAttributes = [...classAttributes];
+
+    if (this.url) {
+      return (
+        <li
+          data-link-id={`menu-link-sidebar-${this.menuLinkId}`}
+          class={classAttributes.join(' ')}
+          aria-current={this.isActive ? 'true' : 'false'}
+          item-level={this.depth}
+        >
+          {this.isParent && (
+            <span class={'hy-menu-item__parent__icon'}>
+              <hy-icon
+                class={'hy-menu-item__parent__icon__svg'}
+                icon={'hy-icon-caret-left'}
+                fill={'currentColor'}
+                size={10}
+              />
+            </span>
+          )}
+          <div class="hy-menu-item-sidebar--label-container">
+            {this.isActive ? (
+              <span class={anchorClassAttributes.join(' ')}>{this.label}</span>
+            ) : (
+              <a class={anchorClassAttributes.join(' ')} href={this.url}>
+                {this.label}
+              </a>
+            )}
+            {this.hasChildren && (
+              <button
+                aria-labelledby={this.label}
+                aria-expanded={this.inActiveTrail && !this.isActive ? 'true' : 'false'}
+                type="button"
+                class={'hy-menu-item__label__icon'}
+                onClick={(e) => this.sidebarTopLevelToggle(e)}
+              >
+                <hy-icon
+                  class={'hy-menu-item__label__icon__svg'}
+                  icon={'hy-icon-caret-right'}
+                  fill={'currentColor'}
+                  size={18}
+                />
+              </button>
+            )}
+          </div>
+          {this.hasChildren && <slot />}
+        </li>
+      );
+    } else {
+      return;
+    }
+  }
+}
diff --git a/src/components/navigation/menu-item-sidebar/readme.md b/src/components/navigation/menu-item-sidebar/readme.md
new file mode 100644
index 0000000000000000000000000000000000000000..a96477cc2974daa77d4e623dcd3b5a9fcb669856
--- /dev/null
+++ b/src/components/navigation/menu-item-sidebar/readme.md
@@ -0,0 +1,53 @@
+# menu-item-sidebar
+
+<!-- Auto Generated Below -->
+
+## Properties
+
+| Property                  | Attribute                    | Description | Type                                                                                               | Default            |
+| ------------------------- | ---------------------------- | ----------- | -------------------------------------------------------------------------------------------------- | ------------------ |
+| `ariaExpanded`            | `aria-expanded`              |             | `boolean`                                                                                          | `false`            |
+| `depth`                   | `depth`                      |             | `number`                                                                                           | `0`                |
+| `hasChildren`             | `has-children`               |             | `boolean`                                                                                          | `null`             |
+| `inActiveTrail`           | `in-active-trail`            |             | `boolean`                                                                                          | `false`            |
+| `isActive`                | `is-active`                  |             | `boolean`                                                                                          | `false`            |
+| `isActiveChild`           | `is-active-child`            |             | `boolean`                                                                                          | `false`            |
+| `isDemo`                  | `is-demo`                    |             | `boolean`                                                                                          | `false`            |
+| `isHeading`               | `is-heading`                 |             | `boolean`                                                                                          | `false`            |
+| `isParent`                | `is-parent`                  |             | `boolean`                                                                                          | `false`            |
+| `label`                   | `label`                      |             | `string`                                                                                           | `''`               |
+| `menuButtonSubmenuExpand` | `menu-button-submenu-expand` |             | `string`                                                                                           | `''`               |
+| `menuIsOpen`              | `menu-is-open`               |             | `boolean`                                                                                          | `false`            |
+| `menuItemAlternative`     | `menu-item-alternative`      |             | `boolean`                                                                                          | `false`            |
+| `menuLinkId`              | `menu-link-id`               |             | `string`                                                                                           | `''`               |
+| `menuType`                | `menu-type`                  |             | `MenuType.desktop \| MenuType.mobile \| MenuType.sidenav \| MenuType.sidepanel \| MenuType.tablet` | `MenuType.sidenav` |
+| `parentAsHeading`         | `parent-as-heading`          |             | `string`                                                                                           | `''`               |
+| `parentExpanded`          | `parent-expanded`            |             | `boolean`                                                                                          | `false`            |
+| `url`                     | `url`                        |             | `string`                                                                                           | `''`               |
+
+## Events
+
+| Event                      | Description | Type               |
+| -------------------------- | ----------- | ------------------ |
+| `addBreadcrumb`            |             | `CustomEvent<any>` |
+| `menuContainerActiveTrail` |             | `CustomEvent<any>` |
+| `menuContainerToggled`     |             | `CustomEvent<any>` |
+| `routeClicked`             |             | `CustomEvent<any>` |
+
+## Dependencies
+
+### Depends on
+
+- [hy-icon](../../icon)
+
+### Graph
+
+```mermaid
+graph TD;
+  hy-menu-item-sidebar --> hy-icon
+  style hy-menu-item-sidebar fill:#f9f,stroke:#333,stroke-width:4px
+```
+
+---
+
+Helsinki University Design System
diff --git a/src/components/navigation/menu-item/menu-item.scss b/src/components/navigation/menu-item/menu-item.scss
index 451c3592e43967b64d9b7edb2af24a182356cbbc..09e7bf87e7c2c2990b1c6a4d8772960720795208 100644
--- a/src/components/navigation/menu-item/menu-item.scss
+++ b/src/components/navigation/menu-item/menu-item.scss
@@ -39,15 +39,6 @@
   --hy-menu-item-sidenav-display: block;
 }
 
-:host(.hy-menu-item--sidenav.is-hidden--child) {
-  --hy-menu-item-sidenav-display: none;
-}
-
-:host(.hy-menu-item--sidenav:not(.is-parent)) {
-  display: none;
-  visibility: hidden;
-}
-
 :host(.hy-menu-item--sidenav.is-active) {
   display: block;
   visibility: visible;
diff --git a/src/components/navigation/menu-item/menu-item.tsx b/src/components/navigation/menu-item/menu-item.tsx
index 34c7be30b0bc9507ca5d930701686a405b8a32c4..016fcb8b8c91b97eac263a5ff31ad0cbbebb00d0 100644
--- a/src/components/navigation/menu-item/menu-item.tsx
+++ b/src/components/navigation/menu-item/menu-item.tsx
@@ -1,8 +1,6 @@
 import {Component, Element, Event, EventEmitter, h, Host, Listen, Prop} from '@stencil/core';
 import {MenuType} from '../../../utils/utils';
 
-// import {MenuItemVariants} from '../../utils/utils';
-
 @Component({
   tag: 'hy-menu-item',
   styleUrl: 'menu-item.scss',
@@ -61,10 +59,6 @@ export class MenuItem {
         label: currentParent.parentElement.getAttribute('label'),
         bid: this.menuLinkId,
       });
-
-      if (this.menuType === MenuType.sidenav) {
-        this.el.children[0].setAttribute('class', 'is-open');
-      }
     }
 
     // If current menu item is active, trigger all parent menuLevelContainer
@@ -87,37 +81,6 @@ export class MenuItem {
           });
         }
       });
-
-      // If side navigation menu item has is-active state, prepare the menu items
-      // for the last children.
-      if (this.menuType === MenuType.sidenav) {
-        parents.forEach((element) => {
-          if (element.tagName.toLowerCase() === 'hy-menu-item') {
-            element.classList.add('is-hidden--child');
-          }
-        });
-
-        // If current active menu item have children, set the child
-        // menu-level-container open.
-        if (this.el.children.length > 0) {
-          this.el.children[0].setAttribute('class', 'is-open');
-        }
-        // If current active menu item does not have any children, mock the
-        // current menu item and parent menu item to behave like there would
-        // be child menu items available.
-        else {
-          const parentMenuItem = this.el.parentElement.closest('hy-menu-item');
-          const parentMenuItemAnchor = parentMenuItem.shadowRoot.querySelector('a.hy-menu-item--sidenav');
-          parentMenuItem.classList.remove('is-hidden--child');
-          parentMenuItemAnchor.classList.add('is-active--heading');
-          const menuItemSiblings = Array.prototype.slice.call(this.el.closest('hy-menu-level-container').children);
-          menuItemSiblings.forEach((element) => {
-            if (element.tagName.toLowerCase() === 'hy-menu-item') {
-              element.classList.add('is-active--child');
-            }
-          });
-        }
-      }
     }
   }
 
@@ -233,28 +196,14 @@ export class MenuItem {
         ];
         let anchorClassAttributes = [...classAttributes, this.isHeading ? 'is-heading' : ''];
         classAttributes = [...classAttributes, 'hy-menu-item'];
-
-        return this.isParent ? (
-          <Host class={classAttributes.join(' ')}>
-            <a href={this.url} class={anchorClassAttributes.join(' ')}>
-              <span class={'hy-menu-item__label__icon'}>
-                <hy-icon icon={'hy-icon-arrow-left'} fill={'currentColor'} size={18} />
-              </span>
-              <span class={'hy-menu-item__label'}>{this.label}</span>
-            </a>
-          </Host>
-        ) : (
-          <Host class={classAttributes.join(' ')}>
-            <a aria-current={this.isHeading.toString()} href={this.url} class={anchorClassAttributes.join(' ')}>
-              <span class={'hy-menu-item__label'}>{this.label}</span>
-              {this.hasChildren && (
-                <span class={'hy-menu-item__label__icon'}>
-                  <hy-icon icon={'hy-icon-caret-right'} fill={'currentColor'} size={12} />
-                </span>
-              )}
+        return (
+          <li class={classAttributes.join(' ')}>
+            <a class={anchorClassAttributes.join(' ')} href={this.url}>
+              {this.label}
             </a>
+
             {this.hasChildren && <slot />}
-          </Host>
+          </li>
         );
     }
   }
diff --git a/src/components/navigation/menu-item/readme.md b/src/components/navigation/menu-item/readme.md
index 17763127c5e51733e3630322ac415fcb2f34d926..aa75cc3843d0a5d4e47da4163a1e81fbb1b71aa0 100644
--- a/src/components/navigation/menu-item/readme.md
+++ b/src/components/navigation/menu-item/readme.md
@@ -4,25 +4,25 @@
 
 ## Properties
 
-| Property                  | Attribute                    | Description | Type                                                                         | Default            |
-| ------------------------- | ---------------------------- | ----------- | ---------------------------------------------------------------------------- | ------------------ |
-| `ariaExpanded`            | `aria-expanded`              |             | `boolean`                                                                    | `false`            |
-| `depth`                   | `depth`                      |             | `number`                                                                     | `0`                |
-| `hasChildren`             | `has-children`               |             | `boolean`                                                                    | `null`             |
-| `inActiveTrail`           | `in-active-trail`            |             | `boolean`                                                                    | `false`            |
-| `isActive`                | `is-active`                  |             | `boolean`                                                                    | `false`            |
-| `isActiveChild`           | `is-active-child`            |             | `boolean`                                                                    | `false`            |
-| `isDemo`                  | `is-demo`                    |             | `boolean`                                                                    | `false`            |
-| `isHeading`               | `is-heading`                 |             | `boolean`                                                                    | `false`            |
-| `isParent`                | `is-parent`                  |             | `boolean`                                                                    | `false`            |
-| `label`                   | `label`                      |             | `string`                                                                     | `''`               |
-| `menuButtonSubmenuExpand` | `menu-button-submenu-expand` |             | `string`                                                                     | `''`               |
-| `menuItemAlternative`     | `menu-item-alternative`      |             | `boolean`                                                                    | `false`            |
-| `menuLinkId`              | `menu-link-id`               |             | `string`                                                                     | `''`               |
-| `menuType`                | `menu-type`                  |             | `MenuType.desktop \| MenuType.mobile \| MenuType.sidenav \| MenuType.tablet` | `MenuType.desktop` |
-| `parentAsHeading`         | `parent-as-heading`          |             | `string`                                                                     | `''`               |
-| `parentExpanded`          | `parent-expanded`            |             | `boolean`                                                                    | `false`            |
-| `url`                     | `url`                        |             | `string`                                                                     | `''`               |
+| Property                  | Attribute                    | Description | Type                                                                                               | Default            |
+| ------------------------- | ---------------------------- | ----------- | -------------------------------------------------------------------------------------------------- | ------------------ |
+| `ariaExpanded`            | `aria-expanded`              |             | `boolean`                                                                                          | `false`            |
+| `depth`                   | `depth`                      |             | `number`                                                                                           | `0`                |
+| `hasChildren`             | `has-children`               |             | `boolean`                                                                                          | `null`             |
+| `inActiveTrail`           | `in-active-trail`            |             | `boolean`                                                                                          | `false`            |
+| `isActive`                | `is-active`                  |             | `boolean`                                                                                          | `false`            |
+| `isActiveChild`           | `is-active-child`            |             | `boolean`                                                                                          | `false`            |
+| `isDemo`                  | `is-demo`                    |             | `boolean`                                                                                          | `false`            |
+| `isHeading`               | `is-heading`                 |             | `boolean`                                                                                          | `false`            |
+| `isParent`                | `is-parent`                  |             | `boolean`                                                                                          | `false`            |
+| `label`                   | `label`                      |             | `string`                                                                                           | `''`               |
+| `menuButtonSubmenuExpand` | `menu-button-submenu-expand` |             | `string`                                                                                           | `''`               |
+| `menuItemAlternative`     | `menu-item-alternative`      |             | `boolean`                                                                                          | `false`            |
+| `menuLinkId`              | `menu-link-id`               |             | `string`                                                                                           | `''`               |
+| `menuType`                | `menu-type`                  |             | `MenuType.desktop \| MenuType.mobile \| MenuType.sidenav \| MenuType.sidepanel \| MenuType.tablet` | `MenuType.desktop` |
+| `parentAsHeading`         | `parent-as-heading`          |             | `string`                                                                                           | `''`               |
+| `parentExpanded`          | `parent-expanded`            |             | `boolean`                                                                                          | `false`            |
+| `url`                     | `url`                        |             | `string`                                                                                           | `''`               |
 
 ## Events
 
diff --git a/src/components/navigation/menu-level-container/menu-level-container.scss b/src/components/navigation/menu-level-container/menu-level-container.scss
index a80d5227b2e12810ae74e8011325251d70c07860..0160314c1bcebd8be2968aadeb8cf3d9f5d60046 100644
--- a/src/components/navigation/menu-level-container/menu-level-container.scss
+++ b/src/components/navigation/menu-level-container/menu-level-container.scss
@@ -19,7 +19,6 @@
   }
 
   &--desktop {
-    //align-items: center;
     align-items: flex-start;
     display: flex;
     flex-flow: column;
@@ -39,18 +38,166 @@
     }
   }
 
-  &--sidenav {
+  &--sidepanel {
+    background-color: var(--grayscale-white);
+    border-left: 1px solid rgba(0, 0, 0, 0.2);
     display: flex;
-    flex-flow: column;
+    flex-direction: column;
+    height: 100vh;
+    left: 0;
+    margin: 0;
+    padding-left: 13px;
+    padding-right: 13px;
+    padding-top: 240px;
+    position: absolute;
+    top: 0;
+    visibility: visible;
+    width: 261px;
+    z-index: 123;
 
-    &.is-open {
-      display: block;
-      visibility: visible;
+    &:not(.hy-menu-level-container--level-1) {
+      display: none;
+      min-height: var(--minHeight);
+      transform: translateX(calc(100% - 1px));
+
+      &.active-trail-panel,
+      &.is-open {
+        display: flex;
+      }
+    }
+    &.is-open,
+    &.active-trail-panel {
+      height: fit-content;
+      min-height: var(--minHeight);
     }
+  }
 
-    &:not(.is-open):not(.hy-menu-level-container--level-1) {
+  &--sidenav {
+    flex-flow: column;
+    margin: 0;
+    padding: 0;
+    position: relative;
+
+    &:not(.hy-menu-level-container--level-1) {
+      opacity: 0;
       display: none;
       visibility: hidden;
+
+      &.is-closed {
+        animation-direction: normal;
+        animation-duration: 0.25s;
+        animation-fill-mode: backwards;
+        animation-name: slide-panel-in;
+      }
+
+      &.is-open {
+        animation-direction: normal;
+        animation-duration: 0.25s;
+        animation-fill-mode: forwards;
+        animation-name: slide-panel-in;
+        display: flex;
+        height: auto;
+        opacity: 1;
+        visibility: visible;
+      }
+    }
+
+    &.is-open.is-open-on-top {
+      display: none;
+      transform: none !important;
+    }
+
+    &.hy-menu-level-container.is-open {
+      max-width: 280px;
+    }
+
+    .hy-menu-level-container--level-1 {
+      display: flex;
     }
+
+    &:not(.hy-menu-level-container--level-1) {
+      background-color: var(--grayscale-white);
+      border-left: 1px solid rgba(0, 0, 0, 0.2);
+      display: flex;
+      flex-direction: column;
+      height: 100vh;
+      left: 0;
+      margin: -100vh 0;
+      min-height: var(--minHeight);
+      padding-left: 13px;
+      padding-right: 13px;
+      position: absolute;
+      transform: translateX(calc(100% - 1px));
+      width: 281px;
+      z-index: 123;
+
+      &.hy-menu-level-container--level-2 {
+        transform: translateX(calc(100% + 16px)) !important;
+      }
+
+      &:before {
+        background: white;
+        border-bottom: 1px solid rgba(0, 0, 0, 0.2);
+        content: '';
+        display: none;
+        height: 96px;
+        left: -1px;
+        position: absolute;
+        top: 70vh;
+        width: 261px;
+      }
+    }
+
+    .hy-menu-level-container--level-2 {
+      margin: -100vh 0;
+      padding: 100vh 13px;
+      top: 0;
+    }
+
+    .hy-menu-level-container--level-3,
+    .hy-menu-level-container--level-4,
+    .hy-menu-level-container--level-5,
+    .hy-menu-level-container--level-6,
+    .hy-menu-level-container--level-7 {
+      padding: 100vh 13px;
+      top: 100vh;
+    }
+  }
+}
+
+@keyframes slide-panel-in {
+  from {
+    transform: translateX(0);
+    display: none;
+    opacity: 0;
+    z-index: 1;
+  }
+
+  95% {
+    display: flex;
+  }
+
+  to {
+    transform: translateX(calc(100% - 1px));
+    opacity: 1;
+    z-index: 123;
+  }
+}
+
+@keyframes slide-panel-out {
+  from {
+    transform: translateX(100%);
+    opacity: 1;
+    z-index: 123;
+  }
+
+  95% {
+    transform: translateX(0);
+    opacity: 0;
+    z-index: 1;
+  }
+
+  to {
+    display: none;
   }
 }
diff --git a/src/components/navigation/menu-level-container/menu-level-container.tsx b/src/components/navigation/menu-level-container/menu-level-container.tsx
index ec25ffff57debd5610e2eb84300390d48a94a7bd..335ab0a016c6f9e5f933f038bec71163735094d0 100644
--- a/src/components/navigation/menu-level-container/menu-level-container.tsx
+++ b/src/components/navigation/menu-level-container/menu-level-container.tsx
@@ -16,6 +16,14 @@ export class MenuLevelContainer {
   @Prop({mutable: true, reflect: true}) depth: number = 0;
   @Prop({mutable: true}) headingItem: any;
   @Prop({mutable: true, reflect: true}) triggerItem: string;
+  /**
+   * Url to front page for panel first parent
+   */
+  @Prop() frontUrl: string;
+  /**
+   * label for front page for panel first parent
+   */
+  @Prop() frontLabel: string;
   @State() menuIsOpen: boolean = false;
 
   // Add/Remove is-hidden class from each upper level menu-items
@@ -109,7 +117,8 @@ export class MenuLevelContainer {
 
     // Set is-active-child and menu-level attributes to all sibling menu-items.
     if (this.menuType === MenuType.sidenav) {
-      const parentMenuItem = this.el.closest('hy-menu-item');
+      const parentMenuItem = this.el.closest('hy-menu-item-sidebar');
+
       if (parentMenuItem && parentMenuItem.classList.contains('is-active')) {
         this.menuIsOpen = true;
         const items = Array.from(this.el.children);
@@ -123,7 +132,6 @@ export class MenuLevelContainer {
 
   render() {
     let classAttributes = ['hy-menu-level-container', 'hy-menu-level-container--level-' + this.depth];
-
     switch (this.menuType) {
       case MenuType.desktop:
         classAttributes = [...classAttributes, 'hy-menu-level-container--desktop'];
@@ -161,25 +169,90 @@ export class MenuLevelContainer {
           );
         }
       case MenuType.sidenav:
-        classAttributes = [...classAttributes, 'hy-menu-level-container--sidenav'];
-
         if (this.depth === 1) {
-          classAttributes = [...classAttributes, 'is-open'];
+          const shouldBeHidden = this.depth != null && this.depth === 1 ? 'is-open' : '';
 
+          classAttributes = [...classAttributes, 'hy-menu-level-container--sidenav', shouldBeHidden];
           return (
-            <Host aria-expanded={this.menuIsOpen.toString()} class={classAttributes.join(' ')} tabindex={'-1'}>
+            <ul data-menu-level={this.depth} class={classAttributes.join(' ')}>
               <slot />
-            </Host>
+            </ul>
           );
         } else {
-          classAttributes = [...classAttributes, this.menuIsOpen ? 'is-open' : null];
+          const isMenuOpen = this.menuIsOpen ? 'is-open_is-open__sub-level' : null;
+          const shouldBeHidden = this.depth != null && this.depth === 1 ? 'is-open' : '';
+          const parentMenuItem = this.el.closest('hy-menu-item-sidebar') as any;
+          const parentClone = parentMenuItem.cloneNode(true) as any;
+          const parentLink = parentClone.querySelector('.hy-menu-item-sidebar__label');
 
+          classAttributes = [...classAttributes, 'hy-menu-level-container--sidenav', shouldBeHidden, isMenuOpen];
           return (
-            <Host aria-expanded={this.menuIsOpen.toString()} class={classAttributes.join(' ')} tabindex={'-1'}>
+            <ul data-menu-level={this.depth} class={classAttributes.join(' ')}>
+              {parentLink && (
+                <li class="hy-menu-item-sidebar is-parent is-parent--sub-level">
+                  <hy-icon
+                    class={'hy-menu-item-parent__icon'}
+                    icon={'hy-icon-dot-arrow-right'}
+                    fill={'currentColor'}
+                    size={20}
+                  />
+                  <span
+                    aria-level={this.depth}
+                    role="heading"
+                    class="hy-menu-item-sidebar--label-container"
+                    innerHTML={parentLink.outerHTML}
+                  ></span>
+                </li>
+              )}
               <slot />
-            </Host>
+            </ul>
           );
         }
+
+      case MenuType.sidepanel:
+        //const shouldBeHidden = (this.depth != null && this.depth === 1) ? 'is-open' : '';
+
+        classAttributes = [...classAttributes, 'hy-menu-level-container--sidepanel'];
+        const parentMenuItem = this.el.closest('hy-menu-item-sidebar') as any;
+        const parentClone = parentMenuItem ? (parentMenuItem.cloneNode(true) as any) : null;
+        const parentLink = parentClone ? parentClone.querySelector('.hy-menu-item-sidebar__label') : null;
+        return (
+          <ul data-menu-level={this.depth} class={classAttributes.join(' ')}>
+            {parentLink ? (
+              <li class="hy-menu-item-sidebar is-parent is-parent--sub-level">
+                <hy-icon
+                  class={'hy-menu-item-parent__icon'}
+                  icon={'hy-icon-dot-arrow-right'}
+                  fill={'currentColor'}
+                  size={20}
+                />
+                <span
+                  aria-level={this.depth}
+                  role="heading"
+                  class="hy-menu-item-sidebar--label-container"
+                  innerHTML={parentLink.outerHTML}
+                ></span>
+              </li>
+            ) : (
+              <li class="hy-menu-item-sidebar is-parent is-parent--sub-level is-parent--frontpage">
+                <span class={'hy-menu-item__parent__icon'}>
+                  <hy-icon
+                    class={'hy-menu-item__parent__icon__svg'}
+                    icon={'hy-icon-caret-left'}
+                    fill={'currentColor'}
+                    size={10}
+                  />
+                </span>
+                <div class="hy-menu-item-sidebar--label-container">
+                  <a class="hy-menu-item-sidebar__label" href={this.frontUrl}>
+                    {this.frontLabel}
+                  </a>
+                </div>
+              </li>
+            )}
+            <slot />
+          </ul>
+        );
     }
   }
 }
diff --git a/src/components/navigation/menu-level-container/readme.md b/src/components/navigation/menu-level-container/readme.md
index 723ff6434f76c8d4725ea639948121489c9ee19f..91efe19f73d218ed046b5120ea08973e2b55b3a0 100644
--- a/src/components/navigation/menu-level-container/readme.md
+++ b/src/components/navigation/menu-level-container/readme.md
@@ -4,28 +4,32 @@
 
 ## Properties
 
-| Property                  | Attribute                    | Description | Type                                                                         | Default           |
-| ------------------------- | ---------------------------- | ----------- | ---------------------------------------------------------------------------- | ----------------- |
-| `activeTrailTriggered`    | `active-trail-triggered`     |             | `boolean`                                                                    | `false`           |
-| `depth`                   | `depth`                      |             | `number`                                                                     | `0`               |
-| `headingItem`             | `heading-item`               |             | `any`                                                                        | `undefined`       |
-| `labelFrontPage`          | `label-front-page`           |             | `string`                                                                     | `undefined`       |
-| `menuButtonSubmenuExpand` | `menu-button-submenu-expand` |             | `string`                                                                     | `undefined`       |
-| `menuLevel`               | `menu-level`                 |             | `number`                                                                     | `undefined`       |
-| `menuType`                | `menu-type`                  |             | `MenuType.desktop \| MenuType.mobile \| MenuType.sidenav \| MenuType.tablet` | `MenuType.mobile` |
-| `triggerItem`             | `trigger-item`               |             | `string`                                                                     | `undefined`       |
+| Property                  | Attribute                    | Description                                 | Type                                                                                               | Default           |
+| ------------------------- | ---------------------------- | ------------------------------------------- | -------------------------------------------------------------------------------------------------- | ----------------- |
+| `activeTrailTriggered`    | `active-trail-triggered`     |                                             | `boolean`                                                                                          | `false`           |
+| `depth`                   | `depth`                      |                                             | `number`                                                                                           | `0`               |
+| `frontLabel`              | `front-label`                | label for front page for panel first parent | `string`                                                                                           | `undefined`       |
+| `frontUrl`                | `front-url`                  | Url to front page for panel first parent    | `string`                                                                                           | `undefined`       |
+| `headingItem`             | `heading-item`               |                                             | `any`                                                                                              | `undefined`       |
+| `labelFrontPage`          | `label-front-page`           |                                             | `string`                                                                                           | `undefined`       |
+| `menuButtonSubmenuExpand` | `menu-button-submenu-expand` |                                             | `string`                                                                                           | `undefined`       |
+| `menuLevel`               | `menu-level`                 |                                             | `number`                                                                                           | `undefined`       |
+| `menuType`                | `menu-type`                  |                                             | `MenuType.desktop \| MenuType.mobile \| MenuType.sidenav \| MenuType.sidepanel \| MenuType.tablet` | `MenuType.mobile` |
+| `triggerItem`             | `trigger-item`               |                                             | `string`                                                                                           | `undefined`       |
 
 ## Dependencies
 
 ### Depends on
 
 - [hy-menu-item](../menu-item)
+- [hy-icon](../../icon)
 
 ### Graph
 
 ```mermaid
 graph TD;
   hy-menu-level-container --> hy-menu-item
+  hy-menu-level-container --> hy-icon
   hy-menu-item --> hy-icon
   style hy-menu-level-container fill:#f9f,stroke:#333,stroke-width:4px
 ```
diff --git a/src/components/navigation/menu-sidebar/menu-sidebar.scss b/src/components/navigation/menu-sidebar/menu-sidebar.scss
new file mode 100644
index 0000000000000000000000000000000000000000..ac42203a60e18f1eb010d1367b28f02ff89caad6
--- /dev/null
+++ b/src/components/navigation/menu-sidebar/menu-sidebar.scss
@@ -0,0 +1,173 @@
+:host {
+  display: block;
+}
+
+.hy-menu-sidebar__no-scroll {
+  height: 200vh;
+  overflow: hidden;
+}
+
+.hy-menu-sidepanel__no-scroll {
+  height: 100vh;
+  overflow: hidden;
+}
+
+.hy-menu-sidebar--container {
+  background: none;
+  position: relative;
+
+  &.sidebar-open {
+    background: linear-gradient(to right, #fff 380px, rgba(0, 0, 0, 0.5) 10%);
+    bottom: 0;
+    display: block;
+    height: auto;
+    left: 16px;
+    overflow: auto;
+    position: absolute;
+    right: 0;
+    top: -96px;
+    transition: all 0.25s ease-in;
+    z-index: 5;
+
+    .hy-menu-sidebar__logo {
+      align-items: center;
+      display: flex;
+      height: 96px;
+      margin-bottom: var(--gutter-extrawide);
+
+      .hy-site-logo__label {
+        max-width: 200px;
+      }
+    }
+    .hy-menu-sidebar__panel-toggle {
+      display: flex;
+    }
+
+    // Open sidenav panels. Set background color to non-active items
+    :not(.is-parent):not(.is-active-item).hy-menu-item-sidebar .hy-menu-item-sidebar--label-container {
+      background: linear-gradient(270deg, #f5f5f5 0%, #f8f8f8 100%);
+    }
+  }
+  .hy-menu-sidebar__panel-toggle,
+  .hy-menu-sidebar__logo {
+    display: none;
+  }
+}
+
+.hy-menu-sidepanel--container {
+  animation-direction: normal;
+  animation-duration: 0.25s;
+  animation-fill-mode: forwards;
+  animation-name: sidepanel-moveout;
+  bottom: 0;
+  display: none;
+  left: 0;
+  overflow: auto;
+  position: absolute;
+  right: 0;
+  top: -96px;
+  transform: translateX(-105%);
+  visibility: hidden;
+  z-index: 124;
+
+  &.sidepanel-open {
+    animation-direction: normal;
+    animation-duration: 0.35s;
+    animation-fill-mode: forwards;
+    animation-name: sidepanel-movein;
+    display: flex;
+    height: auto;
+    width: 100%;
+  }
+}
+
+.hy-menu-sidebar {
+  display: none;
+
+  @include breakpoint($extrawide) {
+    display: block;
+    max-width: 280px; // Should be in the wrapper.
+
+    &[aria-hidden='false'] {
+      min-height: var(--minHeight);
+    }
+  }
+}
+
+.hy-menu-sidebar__panel-toggle {
+  @include font-size(14px, 20px);
+  align-items: center;
+  background-color: transparent;
+  border: none;
+  color: var(--brand-main-light);
+  display: flex;
+  flex-direction: row;
+  font-family: var(--main-font-family);
+  font-weight: 600;
+  letter-spacing: -0.5px;
+  margin-bottom: 1rem;
+
+  &:hover {
+    cursor: pointer;
+  }
+
+  svg {
+    fill: var(--brand-main-light);
+  }
+
+  hy-icon:last-child {
+    margin-right: 0.75rem;
+  }
+}
+
+.hy-menu-sidepanel__logo-container {
+  display: flex;
+  flex-direction: column;
+  height: 150px;
+  justify-content: space-between;
+  margin: 20px;
+  position: relative;
+  z-index: 125;
+}
+
+@keyframes sidepanel-movein {
+  from {
+    display: none;
+    transform: translateX(-105%);
+    visibility: hidden;
+  }
+  5% {
+    display: flex;
+  }
+
+  50% {
+    background-color: rgba(0, 0, 0, 0);
+  }
+
+  to {
+    background-color: rgba(0, 0, 0, 0.5);
+    transform: translateX(0);
+    visibility: visible;
+  }
+}
+
+@keyframes sidepanel-moveout {
+  from {
+    background-color: rgba(0, 0, 0, 0.5);
+    transform: translateX(0);
+    visibility: visible;
+  }
+
+  75% {
+    background-color: rgba(0, 0, 0, 0);
+  }
+
+  90% {
+    transform: translateX(-105%);
+  }
+
+  to {
+    display: none;
+    visibility: hidden;
+  }
+}
diff --git a/src/components/navigation/menu-sidebar/menu-sidebar.tsx b/src/components/navigation/menu-sidebar/menu-sidebar.tsx
new file mode 100644
index 0000000000000000000000000000000000000000..8e0dcd02fa6ed7734436053b05b674f67f9b95c7
--- /dev/null
+++ b/src/components/navigation/menu-sidebar/menu-sidebar.tsx
@@ -0,0 +1,368 @@
+import {Component, Element, h, State, Listen, Prop} from '@stencil/core';
+import {MenuType, SiteLogoSize, ColorVariant} from '../../../utils/utils';
+
+@Component({
+  tag: 'hy-menu-sidebar',
+  styleUrl: 'menu-sidebar.scss',
+  shadow: false,
+})
+export class MenuSidebar {
+  @Element() el: HTMLElement;
+  /**
+   * Is menu open boolean.
+   */
+  @Prop() menuIsOpen = false;
+  /**
+   * Menu type. Defaults to sidenav.
+   */
+  @Prop() menuType: MenuType = MenuType.sidenav;
+  /**
+   * Upper menus panel boolean.
+   */
+  @Prop() panelOpen = false;
+  /**
+   * Label for panel toggle button.
+   */
+  @Prop() panelToggleLabel?: string;
+  /**
+   * Label for panel toggle button.
+   */
+  @Prop() panelToggleAriaLabel?: string;
+  /**
+   * Label for panel toggle button.
+   */
+  @Prop() panelToggleCloseLabel?: string;
+  /**
+   * Label for panel toggle button.
+   */
+  @Prop() panelToggleCloseAriaLabel?: string;
+  /**
+   * Url for logo.
+   */
+  @Prop() logoUrl?: string;
+  /**
+   * Logo label
+   */
+  @Prop() logoLabel?: string;
+  /**
+   * Logo size
+   */
+  @Prop() size: SiteLogoSize = SiteLogoSize.big;
+  /**
+   * Isdemo
+   */
+  @Prop() isDemo: boolean = false;
+  /**
+   * Previous panel to be toggled to keep track.
+   */
+  @Prop({mutable: true}) minHeight: any = null;
+  @State() previousPanel: HTMLElement;
+  /**
+   * Previous item to be toggle to keep track.
+   */
+  @State() previousItem;
+  //@State() previousItem: HTMLElement;
+
+  @Listen('panelToggle') panelToggle(e) {
+    if (this.menuIsOpen) {
+      this.closeWholeTree();
+      const body = document.querySelector('body') as HTMLElement;
+
+      this.panelOpen = !this.panelOpen;
+      this.panelOpen
+        ? body.classList.add('hy-menu-sidepanel__no-scroll')
+        : body.classList.remove('hy-menu-sidepanel__no-scroll');
+    } else {
+      this.panelOpen = !this.panelOpen;
+      const body = document.querySelector('body') as HTMLElement;
+      this.panelOpen
+        ? body.classList.add('hy-menu-sidepanel__no-scroll')
+        : body.classList.remove('hy-menu-sidepanel__no-scroll');
+    }
+
+    e.preventDefault();
+    e.stopPropagation();
+  }
+
+  componentWillLoad() {
+    const sideBar = document.querySelector('.layout-sidebar-first');
+    if (this.menuIsOpen) {
+      sideBar.classList.add('menu-is-open');
+    } else if (sideBar.classList.contains('menu-is-open')) {
+      sideBar.classList.remove('menu-is-open');
+    }
+  }
+
+  componentDidLoad() {
+    const sidebarContainer = document.querySelector('.hy-menu-sidebar--container');
+    sidebarContainer.addEventListener('click', (e) => {
+      if ((e.target as HTMLElement).classList.contains('sidebar-open')) {
+        this.closeWholeTree();
+      }
+    });
+    const sidepanelContainer = document.querySelector('.hy-menu-sidepanel--container');
+    sidepanelContainer.addEventListener('click', (e) => {
+      if ((e.target as HTMLElement).classList.contains('sidepanel-open')) {
+        this.panelToggle(e);
+      }
+    });
+
+    const panels = document.querySelectorAll('.hy-menu-level-container');
+    if (panels) {
+      const height = Math.max.apply(
+        Math,
+        [...panels].map((panel) => panel.scrollHeight)
+      );
+      this.minHeight = height;
+    }
+  }
+
+  componentWillUpdate() {
+    const sideBar = document.querySelector('.layout-sidebar-first');
+
+    if (this.menuIsOpen) {
+      sideBar.classList.add('menu-is-open');
+    } else if (sideBar.classList.contains('menu-is-open')) {
+      sideBar.classList.remove('menu-is-open');
+    }
+  }
+
+  @Listen('click')
+  handlePanel(e) {
+    const target = e.target;
+
+    const targetElement = target.tagName.toLowerCase();
+    const possibleTags = [targetElement].some((r) => ['svg', 'path'].indexOf(r) >= 0);
+
+    if (target.classList.contains('hy-menu-item__label__icon') || possibleTags) {
+      const menuItem = target.closest('.hy-menu-item-sidebar');
+      const menuItemId = menuItem.getAttribute('data-link-id');
+      const menuItemLevel = menuItem.getAttribute('item-level');
+      const menuPanel = menuItem.closest('.hy-menu-level-container');
+      const childList = menuItem.querySelector('.hy-menu-level-container');
+
+      // If no previous, as in first time clicking menu
+      if (!this.previousPanel) {
+        this.updatePrevious(menuPanel, menuItem);
+        this.togglePanel(menuItem, childList);
+        return;
+      }
+
+      const prevId = this.previousItem.dataset.linkId;
+      const prevLevel = this.previousItem.getAttribute('item-level');
+
+      // If clicking same menu item again.
+      if (menuItemId === prevId) {
+        if (menuItem.classList.contains('is-active-item')) {
+          this.togglePanel(menuItem, childList, true);
+          if (menuItemLevel == 1) {
+            this.menuIsOpen = false;
+          }
+        } else {
+          this.togglePanel(menuItem, childList);
+        }
+        return;
+      }
+
+      // If clicking menu item on same level or going back up
+      if (menuItemLevel <= prevLevel) {
+        // If clicking already active, close children
+        if (menuItem.classList.contains('is-active-item')) {
+          this.togglePanel(menuItem, childList, true);
+          this.updatePrevious(menuPanel, menuItem);
+          return;
+        }
+        // Close previous panels
+        this.togglePanel(this.previousItem, menuPanel, true);
+        // Open newly clicked panel
+        this.togglePanel(menuItem, childList);
+        // Update previous
+        this.updatePrevious(menuPanel, menuItem);
+      } else if (menuItemLevel > prevLevel) {
+        this.togglePanel(menuItem, childList);
+        this.updatePrevious(menuPanel, menuItem);
+      }
+    }
+    e.stopImmediatePropagation();
+    e.stopPropagation();
+  }
+
+  updatePrevious(panel, item) {
+    this.previousPanel = panel;
+    this.previousItem = item;
+  }
+
+  closeWholeTree() {
+    const sidebarLevel1 = document.querySelector('.hy-menu-level-container--level-1') as HTMLElement;
+    const firstItem = document.querySelector(
+      '.hy-menu-item-sidebar--sidenav.hy-menu-item--level-1.is-active-item'
+    ) as HTMLElement;
+    this.togglePanel(firstItem, sidebarLevel1, true);
+    const body = document.querySelector('body') as HTMLElement;
+    const container = document.querySelector('.hy-menu-sidebar--container') as HTMLElement;
+
+    if (container.classList.contains('sidebar-open') && firstItem) {
+      container.classList.remove('sidebar-open');
+      body.classList.remove('hy-menu-sidebar__no-scroll');
+    }
+  }
+
+  togglePanel(menuItem, panel, shouldClose = false) {
+    const buttonElement = menuItem.querySelector('button');
+    const level = menuItem.getAttribute('item-level');
+    if (level == 1 && !this.menuIsOpen) {
+      if (window.pageYOffset > 50 && !this.isDemo) {
+        window.scrollTo({top: 0});
+      }
+      this.menuIsOpen = true;
+    }
+    if (shouldClose) {
+      const children = panel.querySelectorAll('.hy-menu-item-sidebar');
+      const activeChild = [...children].filter((c) => c.classList.contains('is-active-item'));
+      if (level == 1 && activeChild) {
+        this.menuIsOpen = false;
+      }
+      if (activeChild.length > 0) {
+        for (let i = 0; i < activeChild.length; i++) {
+          const element = activeChild[i];
+          this.closeChildren(element);
+        }
+      }
+      buttonElement.setAttribute('aria-expanded', 'false');
+      this.closeChildren(menuItem);
+      //this.menuIsOpen = level == 1 ? true : false;
+      return;
+    }
+    buttonElement.setAttribute('aria-expanded', 'true');
+    panel.classList.add('is-open');
+    menuItem.classList.add('is-active-item');
+  }
+
+  closeChildren(menuItem) {
+    if (menuItem.classList.contains('is-active-item')) {
+      menuItem.classList.remove('is-active-item');
+    }
+    if (menuItem.classList.contains('has-children')) {
+      const menuButton = menuItem.querySelector('button');
+      menuButton.setAttribute('aria-expanded', 'false');
+      const childList = menuItem.querySelector('.hy-menu-level-container');
+      childList.classList.remove('is-open');
+      const childItems = childList.querySelectorAll('.hy-menu-item-sidebar');
+      if (childList.classList.contains('is-active')) {
+        childList.classList.remove('is-active');
+      }
+      childItems.forEach((element) => {
+        element.classList.remove('is-active-item');
+        if (element.classList.contains('has-children')) {
+          const menuButton = element.querySelector('button');
+          menuButton.setAttribute('aria-expanded', 'false');
+          this.closeChildren(element);
+        } else {
+          return;
+        }
+      });
+    }
+  }
+
+  render() {
+    const logoColor = ColorVariant.black;
+    const panelClassAttributes = ['hy-menu-sidepanel--container', this.panelOpen ? 'sidepanel-open' : ''].join(' ');
+    switch (this.menuType) {
+      case MenuType.sidepanel:
+        return (
+          <div
+            class="hy-menu-sidebar__container"
+            style={{
+              '--minHeight': `${this.minHeight}px` as 'minHeight',
+            }}
+          >
+            <button
+              aria-label={this.panelToggleAriaLabel}
+              class="hy-menu-sidebar__panel-toggle"
+              onClick={(e) => this.panelToggle(e)}
+            >
+              <hy-icon icon={'hy-icon-caret-left'} fill={'currentColor'} size={10} />
+              <hy-icon icon={'hy-icon-caret-left'} fill={'currentColor'} size={10} />
+
+              {this.panelToggleLabel}
+            </button>
+            <div
+              class={panelClassAttributes}
+              aria-hidden={this.panelOpen ? 'false' : 'true'}
+              aria-expanded={this.panelOpen ? 'true' : 'false'}
+            >
+              <div class="hy-menu-sidepanel__nav-container">
+                <div class="hy-menu-sidepanel__logo-container">
+                  <div
+                    class="hy-menu-sidepanel__logo"
+                    aria-hidden={this.panelOpen ? 'false' : 'true'}
+                    tabindex={this.panelOpen ? '0' : '-1'}
+                  >
+                    <hy-site-logo size={56} color={logoColor} url={this.logoUrl} label={this.logoLabel} />
+                  </div>
+                  <button
+                    aria-label={this.panelToggleCloseAriaLabel}
+                    aria-hidden={this.panelOpen ? 'false' : 'true'}
+                    tabindex={this.panelOpen ? '0' : '-1'}
+                    class="hy-menu-sidebar__panel-toggle"
+                    onClick={(e) => this.panelToggle(e)}
+                  >
+                    <hy-icon icon={'hy-icon-remove'} fill={'currentColor'} size={10} />
+
+                    {this.panelToggleCloseLabel}
+                  </button>
+                </div>
+                <nav
+                  role={'navigation'}
+                  aria-hidden={this.panelOpen ? 'false' : 'true'}
+                  tabindex={this.panelOpen ? '0' : '-1'}
+                  class={{
+                    'hy-menu': true,
+                    'hy-menu-sidepanel': true,
+                    'is-demo': this.isDemo,
+                  }}
+                >
+                  <slot />
+                </nav>
+              </div>
+            </div>
+          </div>
+        );
+
+      case MenuType.sidenav:
+        return (
+          <div
+            class="hy-menu-sidebar--container"
+            style={{
+              '--minHeight': `${this.minHeight}px` as 'minHeight',
+            }}
+          >
+            <div class="hy-menu-sidebar__logo">
+              <hy-site-logo size={56} color={logoColor} url={this.logoUrl} label={this.logoLabel} />
+            </div>
+            <button
+              aria-label={this.panelToggleAriaLabel}
+              class="hy-menu-sidebar__panel-toggle"
+              onClick={(e) => this.panelToggle(e)}
+            >
+              <hy-icon icon={'hy-icon-caret-left'} fill={'currentColor'} size={10} />
+              <hy-icon icon={'hy-icon-caret-left'} fill={'currentColor'} size={10} />
+
+              {this.panelToggleLabel}
+            </button>
+            <nav
+              role={'navigation'}
+              aria-hidden={this.menuIsOpen ? 'false' : 'true'}
+              class={{
+                'hy-menu': true,
+                'hy-menu-sidebar': true,
+                'is-demo': this.isDemo,
+              }}
+            >
+              <slot />
+            </nav>
+          </div>
+        );
+    }
+  }
+}
diff --git a/src/components/navigation/menu-sidebar/readme.md b/src/components/navigation/menu-sidebar/readme.md
new file mode 100644
index 0000000000000000000000000000000000000000..b327245c2be75690c472cb49efb0b0cb67e3e4e3
--- /dev/null
+++ b/src/components/navigation/menu-sidebar/readme.md
@@ -0,0 +1,41 @@
+# hy-menu-sidebar
+
+<!-- Auto Generated Below -->
+
+## Properties
+
+| Property                    | Attribute                       | Description                                 | Type                                                                                               | Default            |
+| --------------------------- | ------------------------------- | ------------------------------------------- | -------------------------------------------------------------------------------------------------- | ------------------ |
+| `isDemo`                    | `is-demo`                       | Isdemo                                      | `boolean`                                                                                          | `false`            |
+| `logoLabel`                 | `logo-label`                    | Logo label                                  | `string`                                                                                           | `undefined`        |
+| `logoUrl`                   | `logo-url`                      | Url for logo.                               | `string`                                                                                           | `undefined`        |
+| `menuIsOpen`                | `menu-is-open`                  | Is menu open boolean.                       | `boolean`                                                                                          | `false`            |
+| `menuType`                  | `menu-type`                     | Menu type. Defaults to sidenav.             | `MenuType.desktop \| MenuType.mobile \| MenuType.sidenav \| MenuType.sidepanel \| MenuType.tablet` | `MenuType.sidenav` |
+| `minHeight`                 | `min-height`                    | Previous panel to be toggled to keep track. | `any`                                                                                              | `null`             |
+| `panelOpen`                 | `panel-open`                    | Upper menus panel boolean.                  | `boolean`                                                                                          | `false`            |
+| `panelToggleAriaLabel`      | `panel-toggle-aria-label`       | Label for panel toggle button.              | `string`                                                                                           | `undefined`        |
+| `panelToggleCloseAriaLabel` | `panel-toggle-close-aria-label` | Label for panel toggle button.              | `string`                                                                                           | `undefined`        |
+| `panelToggleCloseLabel`     | `panel-toggle-close-label`      | Label for panel toggle button.              | `string`                                                                                           | `undefined`        |
+| `panelToggleLabel`          | `panel-toggle-label`            | Label for panel toggle button.              | `string`                                                                                           | `undefined`        |
+| `size`                      | `size`                          | Logo size                                   | `SiteLogoSize.big \| SiteLogoSize.large \| SiteLogoSize.small`                                     | `SiteLogoSize.big` |
+
+## Dependencies
+
+### Depends on
+
+- [hy-icon](../../icon)
+- [hy-site-logo](../../site-header/site-logo)
+
+### Graph
+
+```mermaid
+graph TD;
+  hy-menu-sidebar --> hy-icon
+  hy-menu-sidebar --> hy-site-logo
+  hy-site-logo --> hy-icon
+  style hy-menu-sidebar fill:#f9f,stroke:#333,stroke-width:4px
+```
+
+---
+
+Helsinki University Design System
diff --git a/src/components/navigation/menu/menu.scss b/src/components/navigation/menu/menu.scss
index a6bd0ac8768afa9f9d2ce66a7377818c2b08c250..f8aa62a6995f1471cd400dd8f8f31f2efb9a3486 100644
--- a/src/components/navigation/menu/menu.scss
+++ b/src/components/navigation/menu/menu.scss
@@ -86,15 +86,6 @@
       padding: 16px 28px;
     }
   }
-
-  &--sidenav {
-    display: none;
-
-    @include breakpoint($extrawide) {
-      display: block;
-      max-width: 20vw; // Should be in the wrapper.
-    }
-  }
 }
 
 .hy-link__donate {
diff --git a/src/components/navigation/menu/menu.tsx b/src/components/navigation/menu/menu.tsx
index 9ab50e0ac8492b288f3feb13e4159d23912b93f8..73b477776a0892f5afab5b9f3acdf6949a23b363 100644
--- a/src/components/navigation/menu/menu.tsx
+++ b/src/components/navigation/menu/menu.tsx
@@ -177,21 +177,6 @@ export class Menu {
             </div>
           </nav>
         );
-
-      case MenuType.sidenav:
-        return (
-          <nav
-            role={'navigation'}
-            aria-hidden={this.menuIsOpen ? 'false' : 'true'}
-            class={{
-              'hy-menu': true,
-              'hy-menu--sidenav': true,
-              'is-demo': this.isDemo,
-            }}
-          >
-            <slot />
-          </nav>
-        );
     }
   }
 }
diff --git a/src/components/navigation/menu/readme.md b/src/components/navigation/menu/readme.md
index 841305ec950f521d311c1c2a2f13eabb192cac0c..baad4577f70315dd590dd4a65ea1bbd106279c1f 100644
--- a/src/components/navigation/menu/readme.md
+++ b/src/components/navigation/menu/readme.md
@@ -4,18 +4,18 @@
 
 ## Properties
 
-| Property                     | Attribute                       | Description | Type                                                                         | Default            |
-| ---------------------------- | ------------------------------- | ----------- | ---------------------------------------------------------------------------- | ------------------ |
-| `dataMenuDonate`             | `data-menu-donate`              |             | `string`                                                                     | `undefined`        |
-| `dataMenuLanguage`           | `data-menu-language`            |             | `string`                                                                     | `undefined`        |
-| `isDemo`                     | `is-demo`                       |             | `boolean`                                                                    | `false`            |
-| `labelFrontPage`             | `label-front-page`              |             | `string`                                                                     | `undefined`        |
-| `logoLabel`                  | `logo-label`                    |             | `string`                                                                     | `undefined`        |
-| `logoUrl`                    | `logo-url`                      |             | `string`                                                                     | `undefined`        |
-| `menuButtonBreadcrumbReturn` | `menu-button-breadcrumb-return` |             | `string`                                                                     | `undefined`        |
-| `menuButtonSubmenuExpand`    | `menu-button-submenu-expand`    |             | `string`                                                                     | `undefined`        |
-| `menuIsOpen`                 | `menu-is-open`                  |             | `boolean`                                                                    | `true`             |
-| `menuType`                   | `menu-type`                     |             | `MenuType.desktop \| MenuType.mobile \| MenuType.sidenav \| MenuType.tablet` | `MenuType.desktop` |
+| Property                     | Attribute                       | Description | Type                                                                                               | Default            |
+| ---------------------------- | ------------------------------- | ----------- | -------------------------------------------------------------------------------------------------- | ------------------ |
+| `dataMenuDonate`             | `data-menu-donate`              |             | `string`                                                                                           | `undefined`        |
+| `dataMenuLanguage`           | `data-menu-language`            |             | `string`                                                                                           | `undefined`        |
+| `isDemo`                     | `is-demo`                       |             | `boolean`                                                                                          | `false`            |
+| `labelFrontPage`             | `label-front-page`              |             | `string`                                                                                           | `undefined`        |
+| `logoLabel`                  | `logo-label`                    |             | `string`                                                                                           | `undefined`        |
+| `logoUrl`                    | `logo-url`                      |             | `string`                                                                                           | `undefined`        |
+| `menuButtonBreadcrumbReturn` | `menu-button-breadcrumb-return` |             | `string`                                                                                           | `undefined`        |
+| `menuButtonSubmenuExpand`    | `menu-button-submenu-expand`    |             | `string`                                                                                           | `undefined`        |
+| `menuIsOpen`                 | `menu-is-open`                  |             | `boolean`                                                                                          | `true`             |
+| `menuType`                   | `menu-type`                     |             | `MenuType.desktop \| MenuType.mobile \| MenuType.sidenav \| MenuType.sidepanel \| MenuType.tablet` | `MenuType.desktop` |
 
 ## Events
 
diff --git a/src/components/site-header/readme.md b/src/components/site-header/readme.md
index ca762fc5a53111ad826fe88469b75100016fa8c5..fb281a59b339570530fc72b85daa3f351537e71c 100644
--- a/src/components/site-header/readme.md
+++ b/src/components/site-header/readme.md
@@ -4,17 +4,17 @@
 
 ## Properties
 
-| Property               | Attribute                 | Description | Type                                                                         | Default            |
-| ---------------------- | ------------------------- | ----------- | ---------------------------------------------------------------------------- | ------------------ |
-| `dataDesktopLinks`     | `data-desktop-links`      |             | `DesktopLinks[] \| string`                                                   | `undefined`        |
-| `dataMenuDonate`       | `data-menu-donate`        |             | `string`                                                                     | `undefined`        |
-| `dataMenuLanguage`     | `data-menu-language`      |             | `string`                                                                     | `undefined`        |
-| `dataSiteHeaderLabels` | `data-site-header-labels` |             | `string`                                                                     | `undefined`        |
-| `logoLabel`            | `logo-label`              |             | `string`                                                                     | `undefined`        |
-| `logoUrl`              | `logo-url`                |             | `string`                                                                     | `undefined`        |
-| `menuLabelClose`       | `menu-label-close`        |             | `string`                                                                     | `undefined`        |
-| `menuLabelOpen`        | `menu-label-open`         |             | `string`                                                                     | `undefined`        |
-| `menuType`             | `menu-type`               |             | `MenuType.desktop \| MenuType.mobile \| MenuType.sidenav \| MenuType.tablet` | `MenuType.default` |
+| Property               | Attribute                 | Description | Type                                                                                               | Default            |
+| ---------------------- | ------------------------- | ----------- | -------------------------------------------------------------------------------------------------- | ------------------ |
+| `dataDesktopLinks`     | `data-desktop-links`      |             | `DesktopLinks[] \| string`                                                                         | `undefined`        |
+| `dataMenuDonate`       | `data-menu-donate`        |             | `string`                                                                                           | `undefined`        |
+| `dataMenuLanguage`     | `data-menu-language`      |             | `string`                                                                                           | `undefined`        |
+| `dataSiteHeaderLabels` | `data-site-header-labels` |             | `string`                                                                                           | `undefined`        |
+| `logoLabel`            | `logo-label`              |             | `string`                                                                                           | `undefined`        |
+| `logoUrl`              | `logo-url`                |             | `string`                                                                                           | `undefined`        |
+| `menuLabelClose`       | `menu-label-close`        |             | `string`                                                                                           | `undefined`        |
+| `menuLabelOpen`        | `menu-label-open`         |             | `string`                                                                                           | `undefined`        |
+| `menuType`             | `menu-type`               |             | `MenuType.desktop \| MenuType.mobile \| MenuType.sidenav \| MenuType.sidepanel \| MenuType.tablet` | `MenuType.default` |
 
 ## Dependencies
 
diff --git a/src/components/site-header/site-logo/readme.md b/src/components/site-header/site-logo/readme.md
index 24fb530f21102a30a16100f4c6a5c50982a1f206..6ca8f13049d858c93942fb48a91d43d31cca698b 100644
--- a/src/components/site-header/site-logo/readme.md
+++ b/src/components/site-header/site-logo/readme.md
@@ -17,6 +17,7 @@
 
 - [hy-footer-base](../../footer/hy-footer-base)
 - [hy-menu](../../navigation/menu)
+- [hy-menu-sidebar](../../navigation/menu-sidebar)
 - [hy-site-header](..)
 - [hy-user-login-form](../../hy-user-login-form)
 
@@ -31,6 +32,7 @@ graph TD;
   hy-site-logo --> hy-icon
   hy-footer-base --> hy-site-logo
   hy-menu --> hy-site-logo
+  hy-menu-sidebar --> hy-site-logo
   hy-site-header --> hy-site-logo
   hy-user-login-form --> hy-site-logo
   style hy-site-logo fill:#f9f,stroke:#333,stroke-width:4px
diff --git a/src/index.html b/src/index.html
index 5f06571b8d299c4a6c4461c8507a31aa85184595..6d625609c548333d9a40d293dd6cfcceb5b7eaa4 100644
--- a/src/index.html
+++ b/src/index.html
@@ -984,7 +984,82 @@
       </div>
 
       <aside class="layout-sidebar-first" role="complementary">
-        THIS IS SIDEBAR
+        <hy-menu-sidebar slot="menu" menu-type="sidenav" open="true" is-demo="true">
+          <hy-menu-level-container menu-type="sidenav" menu-level="1">
+            <hy-menu-item-sidebar menu-type="sidenav" menu-link-id="1" url="#" label="News">
+              <hy-menu-level-container menu-type="sidenav" menu-level="2">
+                <hy-menu-item-sidebar menu-type="sidenav" menu-link-id="2" url="#" label="News"></hy-menu-item-sidebar>
+              </hy-menu-level-container>
+            </hy-menu-item-sidebar>
+            <hy-menu-item-sidebar menu-type="sidenav" menu-link-id="42345" url="#" label="Research">
+              <hy-menu-level-container menu-type="sidenav" menu-level="2">
+                <hy-menu-item-sidebar
+                  menu-type="sidenav"
+                  menu-link-id="123"
+                  url="#"
+                  label="Top Research"
+                ></hy-menu-item-sidebar>
+                <hy-menu-item-sidebar menu-type="sidenav" menu-link-id="22" url="#" label="Middle Research">
+                  <hy-menu-level-container menu-type="sidenav" menu-level="3">
+                    <hy-menu-item-sidebar menu-type="sidenav" menu-link-id="232" url="#" label="Middle Top Research">
+                      <hy-menu-level-container menu-type="sidenav" menu-level="4">
+                        <hy-menu-item-sidebar
+                          menu-type="sidenav"
+                          menu-link-id="21"
+                          url="#"
+                          label="Top"
+                        ></hy-menu-item-sidebar>
+                      </hy-menu-level-container>
+                    </hy-menu-item-sidebar>
+                    <hy-menu-item-sidebar
+                      menu-type="sidenav"
+                      menu-link-id="242"
+                      url="#"
+                      label="Middle Middle Research"
+                    ></hy-menu-item-sidebar>
+                    <hy-menu-item-sidebar menu-type="sidenav" menu-link-id="252" url="#" label="Middle Bottom Research">
+                      <hy-menu-level-container menu-type="sidenav" menu-level="4">
+                        <hy-menu-item-sidebar
+                          menu-type="sidenav"
+                          menu-link-id="2134"
+                          url="#"
+                          label="Bottom"
+                        ></hy-menu-item-sidebar>
+                      </hy-menu-level-container>
+                    </hy-menu-item-sidebar>
+                  </hy-menu-level-container>
+                </hy-menu-item-sidebar>
+                <hy-menu-item-sidebar
+                  menu-type="sidenav"
+                  menu-link-id="222"
+                  url="#"
+                  label="Bottom Research"
+                ></hy-menu-item-sidebar>
+              </hy-menu-level-container>
+            </hy-menu-item-sidebar>
+            <hy-menu-item-sidebar
+              menu-type="sidenav"
+              menu-link-id="4905"
+              url="#"
+              label="Admissions"
+            ></hy-menu-item-sidebar>
+            <hy-menu-item-sidebar menu-type="sidenav" menu-link-id="4776" url="#" label="Cooperation">
+              <hy-menu-level-container menu-type="sidenav" menu-level="2">
+                <hy-menu-item-sidebar menu-type="sidenav" menu-link-id="455725" url="#" label="Admissions 2">
+                  <hy-menu-level-container menu-type="sidenav" menu-level="3">
+                    <hy-menu-item-sidebar menu-type="sidenav" menu-link-id="4235653" url="#" label="Admissions 2">
+                      <hy-menu-level-container menu-type="sidenav" menu-level="4">
+                        <hy-menu-item-sidebar menu-type="sidenav" menu-link-id="1235653" url="#" label="Admissions 3">
+                        </hy-menu-item-sidebar>
+                      </hy-menu-level-container>
+                    </hy-menu-item-sidebar>
+                  </hy-menu-level-container>
+                </hy-menu-item-sidebar>
+              </hy-menu-level-container>
+            </hy-menu-item-sidebar>
+            <hy-menu-item-sidebar menu-type="sidenav" menu-link-id="47" url="#" label="About us"></hy-menu-item-sidebar>
+          </hy-menu-level-container>
+        </hy-menu-sidebar>
       </aside>
     </hy-main>
     <div style="max-width: 1216px; margin: 0 auto;">
diff --git a/src/utils/utils.ts b/src/utils/utils.ts
index d42623658c9fc4aa8b9eacfadcb58f0de55a1b3c..d16c1f46e1710d40d57d6ce41ea2d060ef549021 100644
--- a/src/utils/utils.ts
+++ b/src/utils/utils.ts
@@ -130,6 +130,7 @@ export enum GridAlignVariants {
 export enum MenuType {
   desktop = 'desktop',
   sidenav = 'sidenav',
+  sidepanel = 'sidepanel',
   mobile = 'mobile',
   tablet = 'tabled',
   default = 'desktop',