No. 1 pharmacist recommended vitamin and supplement brand (based on a survey of pharmacists who recommend branded vitamins and supplements). 100% drug free. Helps improve sleep quality (extended release melatonin improves sleep quality) (supplements melatonin, a hormone found naturally in the body). 1. Helps calm your mild with Gaba + L0-theanine. 2. Fall asleep faster with immediate release melatonin. 3. Stay asleep longer with extended release melatonin.