Natrol® Melatonin Time Release 5 mg  releases melatonin quickly to help you fall asleep fast and then releases it steadily to help you stay asleep all night. Melatonin helps establish normal sleep patterns to promote a more restful, relaxing sleep and better overall health. The body naturally produces melatonin and vitamin B6 is essential for melatonin production. This formula is 100% drug free.