Lull: Sleep Sounds icon

LullSleep Sounds

Own your sleep sounds — 51 of them, offline, no subscription.

Sleep Sounds is a private, 100% on-device sound mixer for sleep and focus, with 51 professional ambient sounds across six categories: Noise, Rain, Water, Nature, Cozy and Places. Real CC0 field recordings sit alongside cleanly generated noise — white, pink and brown — and everything plays from your device, so nothing streams and nothing leaves your iPhone or iPad. Layer as many sounds as you like into your own mix, set each sound's volume, and save the mixes you love to recall in a tap. A sleep timer gently fades everything out as you drift off, full background audio with lock-screen controls keeps it playing with the screen off, and a beautiful audio-reactive Now Playing orb pulses to your mix. It's private by design: no account, no ads, no tracking, no cloud. Native and universal for iPhone and iPad. Start free with 8 sounds — and you can preview every premium sound before you buy — then a single $4.99 purchase unlocks the full 51-sound library, unlimited multi-sound mixing and saved mixes, and long and custom sleep timers. One time, no subscription — unlike BetterSleep, Calm or Dark Noise.

Price$4.99
PlatformsiPhone · iPad
ForLight sleepers, students, parents, shift workers and anyone who focuses better with sound.
Lull: Sleep Sounds screenshot

What it does

Mix multiple sounds

Layer as many sounds as you like into your own mix, with independent volume on every sound.

51 sounds, 6 categories

51 professional ambient sounds — Noise, Rain, Water, Nature, Cozy and Places — real CC0 field recordings and generated noise, all on-device.

Sleep timer with fade-out

A sleep timer gently fades everything out as you drift off; long and custom timers come with the unlock.

Saved mixes

Save the blends you love and recall them in a single tap — your own library of sleep and focus mixes.

Now Playing orb

A beautiful audio-reactive orb pulses to your mix, with full background audio and lock-screen controls.

100% on-device, no subscription

Nothing leaves your device — no account, no ads, no tracking — for a one-time $4.99, not a subscription.