Natural Nights helps promote sleep by: Supplementing the melatonin our bodies naturally produce which regulates the natural sleep/wake cycle.* Restoring vitamin B6 and calcium that stress takes away.* Working through the night with an extended-release delivery system that gradually releases melatonin while you sleep. Contains the finest pure melatonin (synthetically derived, not of animal origin). Safe, non-habit forming. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.