The first three stages of sleep are characterised by three types of brainwaves: alpha waves, theta waves and delta waves. The former are typically recorded when we’re in the process of falling ...
Theta waves (4-7 Hz) are common in the lighter stages of sleep or the transition from waking to sleeping. Delta waves (0.5-4 Hz) signify a state of deep sleep. A binaural beat with a frequency ...
Then choose the right frequency. For sleep, frequencies in the delta and theta ranges are commonly recommended, Chigadora says. You can find binaural beats soundtracks available for free on YouTube.