Murmur listens to your room and composes a living soundscape that bends to your breathing — so the night meets you where you are.
A loop is a loop — your brain clocks it by the third repeat. Murmur generates every minute live, reading the room and your rhythm, so the sound never quite resolves into something you can predict.
Rain that thins as you settle. Swells that arrive a beat apart each time. Nothing canned — it's composed in the moment, on your phone.
A passing truck, a creaking pipe — Murmur hears it and raises a gentle mask in the same key, so the noise never reaches you.
It feels your breathing slow and dims itself in step — no abrupt silence, no timer guesswork, just a soft handoff into sleep.
No alarm cliff. The soundscape brightens across your lightest sleep window, lifting you out without the jolt.
The mic never records. Audio is analysed on-device in real time and nothing — not a second of it — ever leaves the room.
Pick a starting world — coastal rain, a slow forest, a humming train at night — and press one button. That's the last decision you make.
Murmur takes the acoustic shape of the space and your breathing rhythm, then begins composing a soundscape built for that exact night.
As your breath lengthens it follows you down, thinning the sound to nothing — and comes back at first light to lift you out gently.
Continuous, low-information sound raises the arousal threshold — the volume of disruption it takes to wake you. Murmur keeps that floor steady all night and removes the predictable loops your brain learns to ignore. It's the difference between background noise and a held note.
Median extra sleep reported by 312 testers across their first two weeks on the beta.
Every minute is generated fresh, so there's no repeating pattern for your ear to latch onto.
All listening and composing happens on your phone. The microphone stream is never stored or sent.
We're letting people in a few hundred at a time, so every night gets the attention it deserves. Add your name and we'll send your invite when your spot opens.