Sleep Sounds

Web Audio API · Binaural · Noise

🔊 Master Volume 60%
— all sounds off —
Binaural Beats
use headphones
Base Freq 200 Hz
Beat Freq 2 Hz
Volume 40%

Delta (0.5–4 Hz) = deep sleep · Theta (4–8 Hz) = drowsy · Alpha (8–13 Hz) = relaxed

Noise Generator
brown · pink · white
Volume 50%

Brown noise sounds like rushing water — most popular for sleep. Pink is softer than white.

Sine Drone
pure tone · ambient
Frequency 432 Hz
Volume 25%
Sleep Timer
—

Gradually fades out all sounds when time is up.