Delta Waves

Delta-wave binaural beats (under 4 Hz) for deep sleep — free, no sign-up. Headphones required for the binaural effect.

1. Put on headphones — the binaural effect needs a different tone in each ear.
2. Press play and set a sleep timer to fade out after you drift off.
3. Use it as a low-risk wind-down aid, not a clinical sleep treatment.