Meditation Relax Music Channel presents Calming Sleep Music. Peaceful Music for Sleeping : Delta Waves. You can use this soothing video for meditation, yoga, spa and other relaxing purposes
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.