Noise for Sleeping
Audio is synthesized live in your browser — nothing is downloaded. Press play to start.
Lots of people leave a steady sound running overnight so that a car door, a creaky floor, or a snoring partner does not stand out sharply enough to wake them. This page starts on brown noise — its deep, low rumble is a popular pick because it is warmer and less harsh than white — but you can switch colors above without stopping.
Set the sleep timer if you would rather the sound fade out after you have drifted off, and keep the volume gentle. This is a background-sound tool, not a medical device — it makes no claims about treating any sleep condition.
The noise colors
- White — Flat, full hiss.
- Pink — Balanced, softer.
- Brown — Deep low rumble.
- Blue — Bright, airy hiss.
- Green — Mid-focused.
Every color here is generated from scratch with the Web Audio API the moment you press play — there are no sound files to load and nothing leaves your device. That is also why it keeps working offline once the page has loaded.