Melatonin, is the sleep hormone that controls our daily schedule for sleep and wakefulness, our internal day-night clock. Naturally, it is produced with the onset of darkness and makes us feel sleepy helping us to get a good night's rest. Our modern lifestyle, which is not synchronized anymore with natural sunrise and sunset, confuses our internal day-night clock. Taking melatonin 30 minutes before actually going to bed, can synchronize our internal clock again. Numerous studies have shown that is safe, shortens the time it takes to fall asleep, and improves sleep quality (1, 2).