SHUT•EYE™ is the only bodybuilding supplement made to induce muscle sleep. SHUT•EYE’s patented and human clinically proven formula will crank your muscle-building potential by helping you achieve muscle sleep. The average person can get by with regular, average-quality sleep. But bodybuilders who are serious about getting huge need a special kind of sleep – muscle sleep. Muscle sleep is a critical stage of sleep when your testosterone and growth hormone levels are at their highest, and when your body is packing on the muscle. Working all-out in the gym is only half the battle. You grow muscle at night, and you grow most during muscle sleep.