Sleep timer
Play soft background noise and let it fade out before the screen goes dark.
30:00
Good night
Tap anywhere to closeHow to use the sleep timer
- Enter the number of minutes, or tap a preset such as 30 or 60.
- Choose a sound: deep rumble, hiss, or no sound.
- Press Start and keep the page open.
- The sound fades out during the last 30 seconds and the screen turns black when the timer ends. Tap the screen to close it.
Frequently asked questions
Does this sleep timer work with Spotify or YouTube?
No. It controls only its own background noise. It cannot pause music or video that is playing in other apps or tabs.
Will it keep running if my phone screen locks?
The countdown stays accurate, but some phones pause web audio when the screen locks. For the most reliable result, keep the screen on and turn the brightness down.
What is the difference between brown noise and white noise?
Brown noise is deeper and softer, like a low rumble. White noise is brighter, like a steady hiss. Pick whichever you find calmer.
Is anything recorded or uploaded?
No. The timer and the sound are generated inside your browser.