Sleep Fall Asleep Faster, Stay Asleep Longer 100% Drug-Free Natural Flavor Extra Strength Vegetarian Dietary SupplementNatrol Melatonin 5 mg Fast Dissolve: Helps establish normal sleep patterns. Fast Dissolve form–take anytime, anywhere; no water needed. 100% Drug-free and non-habit forming.Melatonin is a nighttime sleep aid for occasional sleeplessness.