Fan noise for sleeping
Fans running in a quiet room. The sound many people already sleep with, without the draft.
Timer
A 2-minute recording played in random overlapping segments, the way the app plays it, so you won't hear a loop. Start with your volume low. Keep this tab open.
About this sound
Fans running in a quiet room: a steady whoosh of moving air that stays the same from minute to minute.
We turned down the electrical hum in the original (at 59, 100, 200 and 300 Hz) so the sound is air rather than motor. The app uses 4 minutes of the recording, played as random stretches of about half a minute joined with 4-second crossfades, with no added volume drift, so it stays as flat as a real fan. The player on this page uses a 2-minute excerpt.
How people use it
A fan is the sleep sound many people already use, and this one works where a real fan doesn't: in winter, in a hotel, in a shared room, or when you don't want the draft. It covers voices and street noise well.
The app's Deep Focus mix pairs a quiet fan with brown noise. For sleep, keep it low and use a slow-fading timer if you only need it to fall asleep. It is free in the app, with no time limit.
Questions
Is sleeping with fan noise bad?
At a low volume it is a common, harmless habit for most people. Keep the level as quiet as still works, measured at your pillow.
Is fan noise white noise?
Not exactly. A fan is broadband like white noise but with more energy in the low and middle range, so it usually sounds softer, closer to pink or brown noise.
Mix it with
Get fan on your phone
Nightwool is coming to iPhone and Android. One e-mail when it launches, then we delete the list.