MORE FROM THIS EPISODE. Melatonin is a natural, non-addicting hormone supplement that assists with sleep. Millions of people in the United States take it in order to get a good night’s sleep after having difficulties falling asleep or staying asleep.However, beware!elatonin is a powerful hormone. Many may mistake its power for that of a sleeping pill and feel compelled to take more for better sleep. However, at the wrong dosage, melatonin may actually destroy your sleep cycle.