Sleep · Meditation · Focus

Sounds that let you sleep

Long sessions with a black screen, natural ambiences and gentle brainwave tones. Free tools with no ads to wake you up. And honest answers about what research says, even when it says less than the internet.

Free tools

Noise generatorWhite, pink, brown or green noise with a sleep timer. Plus how the colors differ and which one to choose.
Open the generator →
Binaural beatsDelta, theta, alpha or 40 Hz, with headphones. And an honest answer to whether they work.
Try and read →
Isochronic tonesThe pulsing version, no headphones needed. And how it compares with binaural beats.
Try and read →

Sleep

Black screen, so your phone stays dark all night.

ThunderstormDelta waves · 3 hours · Black screen
ThunderstormTheta waves · 1 hour · Black screen

Meditate

Theta waves and calm ambiences, 30 minutes to an hour.

Heart Sutra meditationTheta waves · 30 minutes
Source connection meditationTheta waves · 30 minutes
Beach at nightTheta waves · 1 hour

Morning focus

Short 40 Hz sessions to clear the morning fog.

Hawaiian morning meditation40 Hz · 20 minutes