SLEEPTIGHT is taken 20 to 30 minutes before bedDescriptionAlora Naturals - Sleep Tight - 90 Veggie Capsule(s) - NPN: 11111111 -- SLEEP TIGHT contains natural, non-habit forming, substances that will effectively raise serotonin levels. These include 5HTP and L-Theanine, as well as a number of herbs that facilitate serotonin production. The herbs included in SLEEP TIGHT have a long track record of being used in herbal medicine as sedatives and sleep agents. Recently science has confirmed the validity of this traditional approach.