diff --git a/src/components/toolbox/pomodoro/button/button.module.css b/src/components/generic/button/button.module.css
similarity index 100%
rename from src/components/toolbox/pomodoro/button/button.module.css
rename to src/components/generic/button/button.module.css
diff --git a/src/components/toolbox/pomodoro/button/button.tsx b/src/components/generic/button/button.tsx
similarity index 100%
rename from src/components/toolbox/pomodoro/button/button.tsx
rename to src/components/generic/button/button.tsx
diff --git a/src/components/toolbox/pomodoro/button/index.ts b/src/components/generic/button/index.ts
similarity index 100%
rename from src/components/toolbox/pomodoro/button/index.ts
rename to src/components/generic/button/index.ts
diff --git a/src/components/toolbox/pomodoro/timer/index.ts b/src/components/generic/timer/index.ts
similarity index 100%
rename from src/components/toolbox/pomodoro/timer/index.ts
rename to src/components/generic/timer/index.ts
diff --git a/src/components/toolbox/pomodoro/timer/timer.module.css b/src/components/generic/timer/timer.module.css
similarity index 100%
rename from src/components/toolbox/pomodoro/timer/timer.module.css
rename to src/components/generic/timer/timer.module.css
diff --git a/src/components/generic/timer/timer.tsx b/src/components/generic/timer/timer.tsx
new file mode 100644
index 0000000..6d65991
--- /dev/null
+++ b/src/components/generic/timer/timer.tsx
@@ -0,0 +1,36 @@
+import { padNumber } from '@/helpers/number';
+
+import styles from './timer.module.css';
+
+interface TimerProps {
+  displayHours?: boolean;
+  timer: number;
+}
+
+export function Timer({ displayHours = false, timer }: TimerProps) {
+  let hours = Math.floor(timer / 3600);
+  let minutes = Math.floor((timer % 3600) / 60);
+  let seconds = timer % 60;
+
+  hours = isNaN(hours) ? 0 : hours;
+  minutes = isNaN(minutes) ? 0 : minutes;
+  seconds = isNaN(seconds) ? 0 : seconds;
+
+  const formattedHours = padNumber(hours);
+  const formattedMinutes = padNumber(minutes);
+  const formattedSeconds = padNumber(seconds);
+
+  return (
+    <div className={styles.timer}>
+      {displayHours ? (
+        <>
+          {formattedHours}:{formattedMinutes}:{formattedSeconds}
+        </>
+      ) : (
+        <>
+          {formattedMinutes}:{formattedSeconds}
+        </>
+      )}
+    </div>
+  );
+}
diff --git a/src/components/menu/items/index.ts b/src/components/menu/items/index.ts
index 0343348..05a7348 100644
--- a/src/components/menu/items/index.ts
+++ b/src/components/menu/items/index.ts
@@ -6,3 +6,4 @@ export { Source as SourceItem } from './source';
 export { Pomodoro as PomodoroItem } from './pomodoro';
 export { Presets as PresetsItem } from './presets';
 export { Shortcuts as ShortcutsItem } from './shortcuts';
+export { SleepTimer } from './sleep-timer';
diff --git a/src/components/menu/items/sleep-timer.tsx b/src/components/menu/items/sleep-timer.tsx
new file mode 100644
index 0000000..d1e2820
--- /dev/null
+++ b/src/components/menu/items/sleep-timer.tsx
@@ -0,0 +1,18 @@
+import { IoMoonSharp } from 'react-icons/io5/index';
+
+import { Item } from '../item';
+
+interface SleepTimerProps {
+  open: () => void;
+}
+
+export function SleepTimer({ open }: SleepTimerProps) {
+  return (
+    <Item
+      icon={<IoMoonSharp />}
+      label="Sleep timer"
+      shortcut="Shift + T"
+      onClick={open}
+    />
+  );
+}
diff --git a/src/components/menu/menu.tsx b/src/components/menu/menu.tsx
index 81b95a8..d4e5e0b 100644
--- a/src/components/menu/menu.tsx
+++ b/src/components/menu/menu.tsx
@@ -13,11 +13,13 @@ import {
   PomodoroItem,
   PresetsItem,
   ShortcutsItem,
+  SleepTimer,
 } from './items';
 import { Divider } from './divider';
 import { ShareLinkModal } from '@/components/modals/share-link';
 import { PresetsModal } from '@/components/modals/presets';
 import { ShortcutsModal } from '@/components/modals/shortcuts';
+import { SleepTimerModal } from '@/components/modals/sleep-timer';
 import { Notepad, Pomodoro } from '@/components/toolbox';
 import { fade, mix, slideY } from '@/lib/motion';
 import { useSoundStore } from '@/store';
@@ -37,6 +39,7 @@ export function Menu() {
       presets: false,
       shareLink: false,
       shortcuts: false,
+      sleepTimer: false,
     }),
     [],
   );
@@ -64,6 +67,7 @@ export function Menu() {
   useHotkeys('shift+alt+p', () => open('presets'));
   useHotkeys('shift+h', () => open('shortcuts'));
   useHotkeys('shift+s', () => open('shareLink'), { enabled: !noSelected });
+  useHotkeys('shift+t', () => open('sleepTimer'));
 
   useCloseListener(closeAll);
 
@@ -71,6 +75,7 @@ export function Menu() {
 
   return (
     <>
+      <Divider />
       <div className={styles.wrapper}>
         <DropdownMenu.Root open={isOpen} onOpenChange={o => setIsOpen(o)}>
           <DropdownMenu.Trigger asChild>
@@ -103,6 +108,7 @@ export function Menu() {
                     <Divider />
                     <NotepadItem open={() => open('notepad')} />
                     <PomodoroItem open={() => open('pomodoro')} />
+                    <SleepTimer open={() => open('sleepTimer')} />
 
                     <Divider />
                     <ShortcutsItem open={() => open('shortcuts')} />
@@ -133,6 +139,10 @@ export function Menu() {
         show={modals.pomodoro}
         onClose={() => close('pomodoro')}
       />
+      <SleepTimerModal
+        show={modals.sleepTimer}
+        onClose={() => close('sleepTimer')}
+      />
     </>
   );
 }
diff --git a/src/components/modals/shortcuts/shortcuts.tsx b/src/components/modals/shortcuts/shortcuts.tsx
index ee7a743..786a3c1 100644
--- a/src/components/modals/shortcuts/shortcuts.tsx
+++ b/src/components/modals/shortcuts/shortcuts.tsx
@@ -29,6 +29,10 @@ export function ShortcutsModal({ onClose, show }: ShortcutsModalProps) {
       keys: ['Shift', 'P'],
       label: 'Pomodoro Timer',
     },
+    {
+      keys: ['Shift', 'T'],
+      label: 'Sleep Timer',
+    },
     {
       keys: ['Shift', 'Space'],
       label: 'Toggle Play',
diff --git a/src/components/modals/sleep-timer/index.ts b/src/components/modals/sleep-timer/index.ts
new file mode 100644
index 0000000..824c4d9
--- /dev/null
+++ b/src/components/modals/sleep-timer/index.ts
@@ -0,0 +1 @@
+export { SleepTimerModal } from './sleep-timer';
diff --git a/src/components/modals/sleep-timer/sleep-timer.module.css b/src/components/modals/sleep-timer/sleep-timer.module.css
new file mode 100644
index 0000000..3291906
--- /dev/null
+++ b/src/components/modals/sleep-timer/sleep-timer.module.css
@@ -0,0 +1,45 @@
+.header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  margin-bottom: 8px;
+
+  & .title {
+    font-size: var(--font-sm);
+    font-weight: 500;
+    color: var(--color-foreground-subtle);
+  }
+}
+
+.controls {
+  display: flex;
+  flex-flow: column wrap;
+  align-items: flex-start;
+  margin-top: 8px;
+
+  & .inputContainer {
+    display: flex;
+    align-items: center;
+
+    & .input {
+      display: block;
+      height: 40px;
+      padding: 0 8px;
+      color: var(--color-foreground);
+      background-color: var(--color-neutral-50);
+      border: 1px solid var(--color-neutral-200);
+      border-radius: 4px;
+      outline: none;
+    }
+
+    & .label {
+      width: 100px;
+    }
+  }
+
+  & .buttons {
+    display: flex;
+    justify-content: flex-end;
+    width: 100%;
+  }
+}
diff --git a/src/components/modals/sleep-timer/sleep-timer.tsx b/src/components/modals/sleep-timer/sleep-timer.tsx
new file mode 100644
index 0000000..49eb74c
--- /dev/null
+++ b/src/components/modals/sleep-timer/sleep-timer.tsx
@@ -0,0 +1,127 @@
+import { useEffect, useState, useCallback } from 'react';
+import { Modal } from '@/components/modal';
+import { FaPlay, FaUndo } from 'react-icons/fa/index';
+import { useSoundStore } from '@/store';
+
+import { Button } from '@/components/generic/button';
+import { Timer } from '@/components/generic/timer';
+
+import styles from './sleep-timer.module.css';
+
+interface SleepTimerModalProps {
+  onClose: () => void;
+  show: boolean;
+}
+
+export function SleepTimerModal({ onClose, show }: SleepTimerModalProps) {
+  const [hours, setHours] = useState<string>('0');
+  const [minutes, setMinutes] = useState<string>('0');
+  const [running, setRunning] = useState(false);
+  const [timeLeft, setTimeLeft] = useState(0);
+  const [timerId, setTimerId] = useState<NodeJS.Timeout | undefined>(undefined);
+
+  const pause = useSoundStore(state => state.pause);
+
+  const calculateTotalSeconds = useCallback((): number => {
+    return (
+      (hours === '' ? 0 : parseInt(hours)) * 3600 +
+      (minutes === '' ? 0 : parseInt(minutes)) * 60
+    );
+  }, [minutes, hours]);
+
+  useEffect(() => {
+    setTimeLeft(calculateTotalSeconds());
+  }, [calculateTotalSeconds]);
+
+  // Handle multiple clicks on this. Only the latest click should be taken into account
+  const handleStart = () => {
+    if (timerId) clearInterval(timerId);
+
+    setTimeLeft(calculateTotalSeconds);
+    setRunning(true);
+
+    if (timeLeft > 0) {
+      const newTimerId = setInterval(() => {
+        setTimeLeft(prevTimeLeft => {
+          const newTimeLeft = prevTimeLeft - 1;
+          if (newTimeLeft <= 0) {
+            clearInterval(newTimerId);
+            pause();
+            setRunning(false);
+            return 0;
+          }
+          return newTimeLeft;
+        });
+      }, 1000);
+
+      setTimerId(newTimerId);
+    }
+  };
+
+  const handleReset = () => {
+    if (timerId) clearInterval(timerId);
+    setTimeLeft(0);
+    setRunning(false);
+  };
+
+  return (
+    <Modal show={show} onClose={onClose}>
+      <header className={styles.header}>
+        <h2 className={styles.title}>Sleep Timer</h2>
+      </header>
+      <div className={styles.controls}>
+        {!running && (
+          <div className={styles.inputContainer}>
+            <label className={styles.label} htmlFor="hours">
+              Hours:
+            </label>
+            <input
+              className={styles.input}
+              id="hours"
+              min="0"
+              type="number"
+              value={hours}
+              onChange={e =>
+                setHours(e.target.value === '' ? '' : e.target.value)
+              }
+            />
+          </div>
+        )}
+        {!running && (
+          <div className={styles.inputContainer}>
+            <label className={styles.label} htmlFor="minutes">
+              Minutes:
+            </label>
+            <input
+              className={styles.input}
+              max="59"
+              min="0"
+              type="number"
+              value={minutes}
+              onChange={e =>
+                setMinutes(e.target.value === '' ? '' : e.target.value)
+              }
+            />
+          </div>
+        )}
+        {running ? <Timer displayHours={true} timer={timeLeft} /> : null}
+        <div className={styles.buttons}>
+          <Button
+            icon={<FaUndo />}
+            smallIcon
+            tooltip="Reset"
+            onClick={handleReset}
+          />
+          {!running && (
+            <Button
+              icon={<FaPlay />}
+              smallIcon
+              tooltip={'Start'}
+              onClick={handleStart}
+            />
+          )}
+        </div>
+      </div>
+    </Modal>
+  );
+}
diff --git a/src/components/toolbox/pomodoro/pomodoro.tsx b/src/components/toolbox/pomodoro/pomodoro.tsx
index 072df5c..0fc5825 100644
--- a/src/components/toolbox/pomodoro/pomodoro.tsx
+++ b/src/components/toolbox/pomodoro/pomodoro.tsx
@@ -3,9 +3,9 @@ import { FaUndo, FaPlay, FaPause } from 'react-icons/fa/index';
 import { IoMdSettings } from 'react-icons/io/index';
 
 import { Modal } from '@/components/modal';
+import { Button } from '@/components/generic/button';
+import { Timer } from '@/components/generic/timer';
 import { Tabs } from './tabs';
-import { Timer } from './timer';
-import { Button } from './button';
 import { Setting } from './setting';
 
 import { useLocalStorage } from '@/hooks/use-local-storage';
diff --git a/src/components/toolbox/pomodoro/timer/timer.tsx b/src/components/toolbox/pomodoro/timer/timer.tsx
deleted file mode 100644
index 81a25b2..0000000
--- a/src/components/toolbox/pomodoro/timer/timer.tsx
+++ /dev/null
@@ -1,15 +0,0 @@
-import { padNumber } from '@/helpers/number';
-
-import styles from './timer.module.css';
-
-interface TimerProps {
-  timer: number;
-}
-
-export function Timer({ timer }: TimerProps) {
-  return (
-    <div className={styles.timer}>
-      {padNumber(Math.floor(timer / 60))}:{padNumber(timer % 60)}
-    </div>
-  );
-}