Calma: Sleep Sounds Mixer

Sleep sounds & white noise mixer. Mix 6 sounds for sleep, focus or relaxation.

Calma is a sleep sounds app and white noise mixer designed to help you sleep better, relax deeply and improve focus — without subscriptions.

Struggling to fall asleep? Distracted by stress, noise or a busy mind?
Calma helps you create your own peaceful sound environment with sleep sounds, white noise, relaxing ambience and binaural brainwaves.

Whether you want deeper sleep, better focus, stress relief or a calming bedtime routine, Calma gives you powerful tools in one simple app.

Sleep Sounds, White Noise & Relaxing Atmospheres

Explore a rich library of 139+ sounds across multiple categories, including:

• Rain and storm sounds
• Ocean waves and water ambience
• Wind, forest and night sounds
• Fireplace and cozy interior sounds
• White noise, pink noise and brown noise
• Soft instrumental and calming music
• Binaural brainwaves and deep sleep tones

Use Calma as a sleep app, white noise app, relaxation app or focus sounds app for day and night.

Create Your Own Sound Mix

Mix up to 6 sounds at the same time and adjust each volume independently.

Build your perfect combination for:

• sleep and insomnia relief
• studying and deep work
• meditation and relaxation
• baby sleep and white noise for newborns
• travel, flights and quiet focus

Dynamic mixing helps your soundscape feel more natural, immersive and less repetitive.

Brainwave Lab for Sleep & Focus

Calma includes a built-in Brainwave Lab with binaural beats designed for relaxation, sleep and concentration.

Explore frequencies inspired by common brainwave states:

• Delta waves for deep sleep
• Theta waves for relaxation
• Alpha waves for calm focus
• Beta and Gamma waves for alertness and productivity

Use Smart Descent to gradually lower frequencies and guide your mind into deeper rest.

Guided Breathing for Relaxation

Calm your body and mind with structured breathing exercises designed to reduce stress and help you unwind before bed.

Great for:

• bedtime relaxation
• reducing tension
• calming the nervous system
• resetting during stressful days

Helpful Sleep Tools

Calma also includes practical sleep features:

• Sleep timer
• Fade-out for gentle endings
• Fade-in for saved mixes
• Bedtime reminders
• Favorites and saved mixes

Create your own sleep rituals and return to them anytime.

Night Sky — Your Personal Relaxation Space

Discover your own calming night sky inside the app.

Each time you use Calma to relax or sleep, you collect stars and slowly build your own peaceful constellation.

The Night Sky turns your relaxation routine into a gentle nightly ritual and lets you unlock special rewards along the way.

• collect stars while using the app
• build your own constellation
• unlock special sounds and features
• create a calming nightly ritual

A quiet, rewarding experience designed to encourage healthy sleep habits.

Works Offline

Most sounds work fully offline.

No streaming. No constant internet connection. No nighttime data usage.

Perfect for rain sounds, white noise and relaxing sleep atmospheres.

Upgrade to PRO — One-Time Unlock

Unlock the full Calma experience with a single purchase:

• Mix 6 tracks instead of 3
• Full access to 139+ sounds
• Complete Brainwave Lab
• Advanced mixing features
• Ad-free experience

Pay once. Use it forever. No subscription.

If you are looking for sleep sounds, white noise, rain sounds, brainwaves, focus sounds or a powerful sleep mixer, Calma gives you everything in one place.

Sleep better. Relax deeper. Focus longer.