Sleep Sine: Sleep Sounds

Five generative sleep scenes — audio that never plays the same way twice, visuals that never loop. iPhone, iPad, Apple TV. One purchase, no subscription.

Drift to sleep with five generative ambient scenes. Audio crossfades from random offsets so no two nights sound the same — the way real rain sounds different every time you hear it. Visuals render live in Metal, not from a video loop.

iPhone, iPad, and Apple TV. One purchase. No subscription. No ads. No account. No tracking. Ever.

THE SCENES • Thunderstorm — distant rumbles, sheet rain on a tin roof. Free, forever. • Fireplace — crackling embers and the slow breath of a fire on a winter night. • Ocean Night — long swells under a moonlit sky. • Aurora Night — wandering aurora over a quiet pine canopy, rain through the leaves. • Deep Space — pure pink, green, or brown noise synthesis, slow harmonics, the hum at the edge of hearing.

AUDIO THAT NEVER REPEATS Each scene's audio is built from layered samples that crossfade at random offsets — three independent layers in indefinite, never-repeating combinations. The Deep Space scene goes further: pure noise synthesis, no samples at all.

VISUALS THAT NEVER LOOP Every frame is generated live in Metal from noise functions and procedural math — not played back from a video file. Rain, embers, water crests, star twinkle, aurora brightness — all driven in real time. You can leave a scene playing all night and never catch a repeat.

TUNE EVERY SCENE Each scene exposes 8–12 sliders. Save custom mixes. Share them with anyone via a short code that recreates the exact scene on their device.

PLAYS ALL NIGHT Background audio on iPhone runs locked-screen-off without draining your battery. A sleep timer with a soft fade lets you set it and drift. iCloud privately syncs your presets across devices.

DESIGNED FOR APPLE TV Hero scenes render full-bleed on the largest screen in your house. One Family Sharing purchase covers everyone.

PRIVACY Sleep Sine has no servers operated by us. No accounts. No analytics. No third-party SDKs. Your presets sync through your own iCloud account. We don't even know you exist.

ONE-TIME PURCHASE That's it. Family Sharing enabled.