Calma Sleep Sounds White Noise

Calma is a sleep sounds mixer with 193 offline sounds — white noise, brown noise, rain, ocean waves and fans.

Most sleep apps hand you a playlist. Calma hands you a sound mixer. Layer steady rain over deep brown noise, drop a ceiling fan underneath, set the volume of every layer on its own, and fall asleep to a sound that is actually yours. Save the mix, and start the exact same thing tomorrow night with a single tap.

WHY CALMA IS DIFFERENT

A real sound mixer — blend up to 6 sleep sounds at once, each with its own volume slider.
One-time purchase. No subscription, no renewals, no "your trial is ending" emails.
Fully offline. Every sound lives inside the app: no streaming, no data use, works in airplane mode.
No ads. Nothing interrupts the sound, ever.

193 SLEEP SOUNDS

Noise: white noise, pink noise and deep brown noise for babies, sleep, focus and tinnitus relief.
Rain sounds: light rain, steady rain, rain on a roof, heavy rainstorms and distant thunder.
Water and nature sounds: ocean waves, forest streams, wind through trees and quiet countryside.
Fire: campfires and crackling fireplaces.
Home and machines: ceiling fans, room fans, washing machine, hair dryer and vacuum hum — the white noise machine loops people fall asleep to.
Night: crickets, cicadas, birds and evening breeze.
Travel and rooms: inside a train cabin, a ticking clock, a quiet room.
Music and tuning: soft piano and tuning frequencies (174, 396, 432 and 528 Hz).

A SLEEP TIMER THAT DOESN'T WAKE YOU Set it and forget it. The sleep timer fades the whole mix down gradually instead of cutting the sound off, so the quiet arrives before you even notice it. No jarring stop in the middle of the night.

BRAINWAVE LAB — BINAURAL BEATS Binaural beats that run alongside the mixer, not instead of it. Move the slider to pick your frequency and layer it under rain sounds or white noise. Smart Descent walks the beat down to 2 Hz (Delta) over 20 minutes for a hands-off transition into deep sleep. Headphones recommended.

BREATHE FIRST A two-minute breathing animation, including the 4-7-8 method, to slow your body and heart rate before the mix even starts.

WHITE NOISE FOR BABIES AND TODDLERS A dedicated baby category: white noise, womb sounds, heartbeat, a lullaby music box, hair dryer, washing machine and a calm car-ride hum — the white noise babies settle to. Works as a portable sound machine in the nursery, in the car or on a walk.

GOOD FOR

Falling asleep faster and staying asleep
Insomnia and restless nights — a sleep aid that needs no account
A crying baby at 3 a.m.
Blocking a noisy neighbour, street traffic or a snoring partner
Masking tinnitus
Focus, study and deep work
Relaxation, meditation and short naps
Travel — planes, trains and thin hotel walls

NIGHT SKY RITUAL Close the day by placing a star in your own sky. A small nightly ritual that turns the wind-down into something you come back to, instead of one more app you forget.

FREE AND PRO Free, with no time limit: 55 sleep sounds, 3 layers at once, 5 saved mixes, the sleep timer and the breathing exercise.

PRO unlocks all 193 sounds, 6 simultaneous layers, 25 saved mixes, Smart Descent and the full Brainwave Lab range — for a single one-time payment, forever. No subscription.

Build your first mix tonight. Sleep well.