LullSleep Sounds

Own your sleep sounds — offline, no subscription.

Sleep Sounds is a private, 100% on-device sound mixer for sleep and focus. Every sound is procedurally synthesized in real time — there are no audio files to download and nothing to stream — so white, pink, brown and blue noise sit alongside rain, ocean, wind, fan and a flowing stream, all generated on your device. Layer as many 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, and full background audio with lock-screen controls means it keeps playing with the screen off. It's private by design: nothing leaves your device — no account, no ads, no tracking, no cloud. Native and universal for iPhone and iPad, with a full MixerBoard console on the big screen and a Night Mode clock. Start free with white, pink and brown noise plus rain and a fan and 15–45 minute timers, then a single $4.99 purchase unlocks multi-layer mixing, the full library — ocean, wind, stream, blue noise, thunder and night — saved mixes, and 60/90/custom timers. One time, no subscription.