Build your own
background noise
LumaSleep is a sound maker for sleep that fits in your pocket. Pick a noise, layer in rain or a fan, and dial each one to taste — or let AI generate a custom soundscape from a sentence. Then play it on a timer or all night long.
My night mix
Three ways to generate your sound
Pick a noise
Start from white, pink, brown or green noise — the classic generator sounds for masking distractions.
Layer & mix
Add rain, a fan, fire or ocean over the top and set each volume to build custom background noise.
Generate with AI
Or describe a soundscape in words and let the AI create a brand-new sound, saved to your library.
A custom white noise generator and more
Most noise generators give you a handful of fixed tracks. LumaSleep gives you a full sound maker: combine coloured noise with real-world textures, save your favourite mixes, and fall back on the timer so nothing runs longer than you want.
- White, pink, brown & green noise
- Layer rain, fan, fire, ocean and more
- Per-sound volume for a custom mix
- AI-generated soundscapes from text
- Sleep timer with a gentle fade-out
- Plays in the background, all night
Frequently asked
What is a noise generator?
A noise generator creates continuous background sound — like white, pink or brown noise — that masks distractions so you can fall asleep, focus, or relax. LumaSleep is a noise generator you carry in your pocket: pick a sound, set the volume, and play it on a timer or all night.
Can I make my own custom noise?
Yes. You can layer several sounds together — for example brown noise plus rain plus a fan — and set each one's volume to build your own custom background noise. You can also describe a soundscape in plain words and let the AI generate a brand-new sound for you.
Is the noise generator free?
LumaSleep is free to download and includes noise and ambient sounds. Premium unlocks the full library, sound mixing, and unlimited AI sound generation.
Does it work without internet?
Browsing and AI generation need a connection, but you can keep a chosen sound playing reliably through the night with the sleep timer.
Make your perfect sleep sound
Download LumaSleep and build background noise that is truly yours.
Or browse ready-made sounds