Fall asleep faster stay asleep longer
Each Cosmonist track merges dreamy cosmic soundscapes with sleep-optimized science to help you fall asleep faster, stay asleep longer, and wake up truly refreshed.
The hours that decide your tomorrow
Deep sleep takes up only part of your night, yet researchers keep finding how much of your day depends on it.
Sharper mind
While you're in deep sleep, your brain files away what you learned that day — tied by researchers to clearer thinking and stronger recall.
Body recovery
Your biggest nightly release of growth hormone lands in deep sleep, fueling muscle repair and everyday physical recovery.
A cleaner brain
Deep sleep switches on the glymphatic system that flushes waste from your brain — something scientists connect to lasting brain health.
Listen anywhere
Your perfect night’s rest is always within reach.
Over 30+ playlists for every kind of rest
Slow-drifting ambient, deep delta tones and quiet cosmic textures — whatever tonight asks for.
What Cosmonist changes
Mornings that actually feel like you rested.
Select one playlist. Close your eyes and float away.