Sleep sounds app
A free sleep sounds app with offline sound mixing
Mix white noise, brown noise, rain and nature sounds into a bedtime soundscape you control. Calma offers a free version, works without Wi-Fi or mobile data and does not require a monthly subscription.
Create your own bedtime mix
Instead of listening to one generic track, you can build a sound environment that feels right for your evening and your mood.
Listen completely offline
Use your saved sounds without Wi-Fi or mobile data, including in airplane mode or anywhere a stable connection is unavailable.
Skip the monthly subscription
Start with the free version and choose a one-time lifetime unlock if you want premium features—without monthly or annual billing.
Night sounds for a quieter bedroom
A room that is completely silent makes every creak, car and hallway footstep stand out. Calma works as a night sounds app too: steady rain, wind, crickets or a distant ocean give the room a constant background instead of sudden contrasts. Set the sleep timer and the mix fades out on its own once you are asleep.
White, brown and pink sleep noise
People look for a sleep noise app for different reasons. White noise is bright and even, brown noise is deeper and softer on the ear, pink noise sits between the two. Calma includes all three, so you can try them and keep whichever suits you — see the comparison of noise colors if you are not sure where to start.
App preview
See the sleep experience inside Calma
Guides & Knowledge
Learn more about sleep sounds
Best Sounds for Sleep
A practical guide to rain, white noise and softer sleep soundscapes for your bedtime.
How to Build a Bedtime Routine
Simple ways to create a calmer evening rhythm that supports natural and consistent sleep.
White Noise for Sleep
Learn how white noise masks distractions and helps you stay in deeper sleep stages.
Rain Sounds for Sleep & Focus
Why rain sounds are a top choice for calming your mind before sleep.
FAQ
Sleep sounds app FAQ
What is a sleep sounds app?
A sleep sounds app helps you play calming audio designed to support bedtime routines, relaxation and a quieter mental state before sleep.
How is Calma different from other sleep apps?
Calma focuses on personalized soundscapes, a simple interface and a calm premium feel instead of overwhelming you with too many layers of complexity.
Can I build my own sleep mix?
Yes. Calma is designed around creating your own relaxing audio mix rather than only choosing one fixed track.
What is the best free sleep sounds app?
The best free sleep sounds app lets you customize your own sound mixes rather than playing a single fixed track. Calma offers a generous free tier with white noise, brown noise, rain, and nature sounds — all without ads that wake you up. It works completely offline and doesn't require a subscription.
Can I use Calma as a sleep noise app?
Yes. Calma includes white noise, brown noise and pink noise, and you can layer any of them with rain, fan or nature sounds. Each layer has its own volume, so you can keep the noise quiet in the background rather than running it at a fixed level.
Does it work as a night sounds app for the whole night?
You can play a mix all night or use the sleep timer to fade it out after a set time. Playback works offline, so an unstable connection will not interrupt it once the sounds are saved.
Are sleep sound apps safe to use every night?
Keep playback quiet and place the speaker away from your head. Stop or reduce the volume if the sound causes discomfort, ringing or more disrupted sleep. Anyone with hearing concerns should ask a qualified hearing professional for individual guidance.
Try Calma for your evening routine
Download Calma on Google Play and create a more peaceful bedtime experience with personalized sleep sounds.
