Brown Noise for Sleep | With Delta Brainwave Entrainment

Isochronic tone brainwave entrainment means headphones are not required. Pure brown noise sounds end with a slow, soft fade out to send you to sleep without disturbance. Delta frequencies start 20 mins of 3 Hz dreamless sleep frequency, fading to 20 mins of 2 Hz deep sleep frequency, ending in 20 mins of 1 Hz deepest Delta frequency. Listen as you fall asleep to shift your brain into slow-wave relaxation.