Sleep.fm

Guides

What we learnt building the app, written plainly: which sound masks what, how long to leave it playing, and what a one-time purchase changes.

Rain sounds for sleepLight rain, on a window, on a tent, distant thunder: four variants compared, and three mixes that work.White, pink or brown noise?What each steady noise actually masks, and which one you can stand for a whole night.Sleeping through noisy neighboursMask rather than drown out: which sound for which noise, at what volume, and what it can do nothing about.How long should a sound play at night?Twenty minutes, an hour, endless: what each duration changes, and why a hard stop wakes you.Sleeping while travellingPlane, night train, hotel room: what stops you sleeping elsewhere, and the sound that answers it.No subscriptionThe three-year arithmetic, and what a one-time purchase changes about the product itself.

Twenty sounds to fall asleep to

Four are free, with no time limit and no account to create. iPhone and Android.

See the app