Relaxing Music for Deep Sleep. Delta Waves. Calm Background for Sleeping, Meditation , Yoga

Meditation Relax Music Channel presents Relaxing Music for Deep Sleep Music: Delta Waves |.
A delta wave is a high amplitude brain wave with a frequency of oscillation between 0–4 hertz. Delta waves, like other brain waves, are recorded with an electroencephalogram (EEG) and are usually associated with the deep stage 3 of NREM sleep, also known as slow-wave sleep (SWS), and aid in characterizing the depth of sleep.
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