Natural Factors Sleep Relax Formula - Fall asleep quickly, sleep deeply and wake up refreshed. This herbal formula is a combination of proven natural relaxants and nerve calming agents that, when used together provide a natural alternative to over-the-counter sleep aids. Natural Factors Sleep Relax Formula contains standardized extracts of valerian, passion flower, hops, and skullcap that help calm the nervous system and provide a mild sedative action for a good night’s sleep. Valerian is known for its calming effects, while passion flower and hops address anxiety and insomnia. Skullcap is a traditional nervous system tonic. Sleep Relax Formula is completely non-addictive and proven effective at inducing sleep through relaxing the body and calming the nerves, while at the same time restoring and regenerating the nervous system.