Shut-Eye is the one of the only bodybuilding supplement made to induce muscle sleep. Shut-Eye patented 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. THE SCIENCE SCIENCE PROVES YOU NEED MUSCLE SLEEP IF YOU WANT TO GROW. Shut-Eye is a patented, non-habit-forming, muscle-sleep inducer.1 Muscle sleep is a bodybuilder must, and so is Shut-Eye. Muscle sleep can happen approximately five times throughout the night. Muscle sleep can happen within 90 minutes after you first go to sleep and it lasts for 10 minutes. Throughout the night, each successive phase of muscle sleep can last longer and longer. If you achieve the final occurrence of muscle sleep, it can last for up to one hour. But if you aren't achieving muscle sleep, you're not maximizing your growth. That's why Shut-Eye is so vital.