Compare to the active ingredient of Vicks ZzzQuil. Get a restful night's sleep with GoodSense Nighttime Sleep Aid. This nighttime sleep-aid helps to relieve occasional sleeplessness and reduces the time it takes to fall asleep if you have difficulty falling asleep. GoodSense Nighttime Sleep-Aid softgels contain the active ingredient diphenhydramine hydrochloride 25 mg, the number one doctor recommended sleep-aid active ingredient (of U.S. physicians surveyed by an independent market research firm). For adults and children 12 years and over. This nighttime sleep-aid contains no pain reliever and is not for treating colds or the flu. Non-habit forming softgels are gluten free.