NF MELATONIN BI-LAYER 10MG 90'SDont let getting a good nights sleep stress you out. Melatonin works with the bodys natural cycles to effectively reset your biological clock, helping you fall asleep faster, increasing the quality and duration of sleep, supporting REM sleep, and reducing daytime fatigue. Natural Factors Melatonin comes in a sublingual tablet to ensure fast, consistent absorption. Helps reset the bodys sleep wake cycle (an aspect of the circadian rhythm) Addresses