Natural Factors RegenerLife Sleep Better - Features 10 mg of melatonin alongside 5-HTP, L-theanine, and a botanical sleep blend to support healthy daytime energy through a better night’s rest. The advanced tri-layer tablets release 5 mg of melatonin immediately along with other relaxing and sleep-supportive ingredients to help you fall asleep faster, followed by a gradual release of 5 mg of melatonin to help you stay asleep longer. Supplemental melatonin provides a natural way for people experiencing disrupted sleep patterns to reset a normal sleep-wake cycle and promote a longer, better quality of sleep. It works complementarily with 5-HTP, a free-form amino acid that improves REM sleep, which has shown positive effects in helping people overcome insomnia. The amino acid L-theanine works alongside a blend of sleep-supportive herbs – valerian, passionflower, and hops – to temporarily promote relaxation and calm feelings of nervousness that may be impacting sleep.