Hi guys, Welcome to the Advanced Video Search Engine, and you are watching Delta Waves - 8 hours - Black Screen - Deep Sleep - Meditation - Sleep Therapy - Memory Improvement. That video is uploaded by Andrei Popescu at 2020-02-25T10:28:41-08:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [DDT6Isb3AeE]