ZenBev is an entirely natural and healthy drink that has been clinically proven to aid sleep. The drink contains organic pumpkin seeds and is rich in tryptophan, a natural sleep aid. Tryptophan is light sensitive and metabolises differently in light or dark conditions. When taken during the day, the tryptophan in Zenbev becomes serotonin, which regulates mood, emotion, and appetite, and is well known to alleviate stress, anxiety, and depression. When taken at night, serotonin metabolizes into melatonin, a hormone that activates the brain’s normal sleep mechanisms.