Brown noise for sleep
The same sound as the main brown noise player, set up for the specific problem of eight unattended hours in a dark room.
For an overnight session the settings that matter are not the colour — they are the volume, the placement and the ending. Brown noise at a level where you can still hear the room, from a speaker rather than earbuds, on a timer that fades rather than stops.
Volume: the only setting with a real safety angle
Hearing damage is a product of level and duration, and eight hours a night is a large duration. The practical test is that you should still hear a door close somewhere in the house. Masking works at a much lower level than people expect, and a sound loud enough to notice all night is loud enough to matter. The longer version is on how loud should it be.
Speaker, not earbuds
Brown noise needs no stereo separation — unlike a binaural beat, nothing is lost by playing it from a phone or a small speaker across the room. That solves the real problem with overnight audio: earbuds are uncomfortable for side sleepers and leave the ear canal warm and closed for hours. Distance also helps: a speaker two metres away at a low level covers a room more evenly than a source next to your head.
What it covers and what it will not
| Night-time noise | Brown noise | Better option |
|---|---|---|
| Traffic, a road outside | Good — this is its range | — |
| Plumbing, heating, a fridge | Good | — |
| Footsteps or movement upstairs | Good | — |
| A snoring partner | Partly — the low rumble, not the rasp | Add a little pink |
| Talking, a television through a wall | Poor | White noise |
| A dripping tap | Poor — sharp and irregular | Fix the tap |
Why the session fades instead of stopping
A hard cut at 3 a.m. is its own kind of alarm: the sudden absence of a sound your brain has been filtering is a change, and changes wake people. Every timer here fades over the last eight seconds. If you would rather the room went quiet after you are asleep, use the 45-minute preset instead of the full night.
For a baby or small child, keep the volume low and the speaker well away from the cot rather than beside it, and do not run it at high output for long stretches. If you are unsure, ask your paediatrician — we are a sound generator, not a source of infant sleep advice.
Questions
Is brown noise good for sleep?
It is a popular choice because it has no high-frequency hiss to fatigue you over hours. No study shows one colour produces better sleep than another; comfort decides.
Should I play brown noise all night or just while falling asleep?
Either. All night suits a noisy street or shift work; 45 minutes covers sleep onset and leaves the room quiet.
Can I use a speaker instead of headphones?
Yes, and you should. Noise needs no stereo separation, and a speaker across the room is more comfortable and safer for a long session.
Will brown noise block out snoring?
Partly. It covers the low rumble but not the sharper rasp; a mix with pink noise covers more.
Running this on a phone? The Brainwave Generator app keeps playing with the screen off, works without a connection, and carries the same engine. Free on iOS and Android.