A Breakthrough Sleep Solution DEVELOPED BY SOUND HEALING PIONEER DR. JEFFREY THOMPSON BASED ON 25 YEARS OF CLINICAL RESEARCH 3 Hours of Clinically Proven Music for Sleep with Delta Wave Pulses Just Press PLAY to Fall Asleep, Stay Asleep & Wake Up Rejuvenated In the deepest state of sleep your brainwave patterns change to slow frequency "Delta" waves. Dr. Jeffrey Thompson has developed techniques for embedding these Delta waves into soothing musical soundtracks. After a few minutes of listening, your own brainwaves naturally "lock" onto the Delta waves and lead you easily into deep, restful sleep. THIS DIGITAL MUSIC PLAYER IS PRELOADED WITH 3 HOURS OF PEACEFUL MUSIC COMBINED WITH NATURAL DELTA WAVE FREQUENCIES