A steady, even hiss that masks the sounds that wake you up — traffic, a fridge kicking on, a neighbour closing a door. Press play and it runs until you say stop.
You don't have to fall asleep alone tonight 🌙
Step into a quiet room where other sleepers have already tucked in. No chat, no accounts, no pressure — just company while you drift off.
White noise contains every audible frequency at equal intensity. That flat spectrum is exactly why it is useful at night: sudden changes in your environment get smoothed into one continuous background, so a door slam no longer stands out sharply enough to pull you back awake.
This player synthesises the sound live with the Web Audio API instead of streaming a recording. There is no file to buffer, no ad before playback, and no audible seam when a loop restarts. This sound uses no audio file and keeps working offline once the page has loaded.
Keep the volume low — just loud enough to cover background noise, not loud enough that you would notice it. If you use a speaker, place it away from your head. Stop if you find it irritating.
No. The sound is generated inside your browser tab. There is no sign-up, no app to install, and this particular sound uses no audio file.
Only if you set the sleep timer. Otherwise it plays until you close the tab or press pause. The fade-out at the end of the timer is gradual, so it does not jolt you awake.