HOW IT WORKS While you sleep you may think your body is resting, but in fact, your brain is very active and requires a constant supply of energy during the night. Benenox Overnight Recharge, when taken before bed, supplements your body’s stored energy levels to support good quality sleep. Benenox replenishes glycogen Your brain needs glycogen to carry out essential overnight repairs! From the time you finish dinner to the time you go to bed, your body consumes 10 grams of glycogen per hour. This doesn’t stop when you go to sleep. By the morning, your glycogen stores are running on empty! Quality sleep.