Dr. Jeffrey Thompson's clinically proven musical system helps you fall asleep, stay asleep, and wake up feeling rested and refreshed. Soothing guitars, beckoning flutes, and glistening harps woven together with delta wave pulses whisk you naturally into deep, restful sleep Sleep is vital to our health and well-being. Yet millions of us don?t get the sleep we need to live healthy and productive lives. Simply listen to this clinically proven musical system at bedtime and fall asleep easily and naturally. - Based on 25 years of clinical research - Use with any ordinary speakers or light headphones - Contains no spoken words or subliminal messages"