CBD vs. Melatonin: Which Is Better for Sleep? Supplement (Not Melatonin) Improved Sleep in 155 Person Study Dr Brad Stanfield Delayed Sleep Phase Syndrome Aurora Health Care Melatonin makes you drowsy. DSIP changes your sleep architecture., There's a difference between feeling sleepy and getting deep sleep. Most people never get the second one., Your hypothalamus produces Is Melatonin the Next Vitamin D?: A Review of Emerging Science, Clinical Uses, Safety, and Dietary Supplements Potential Indications of Melatonin and Secretin in Children and Adolescents Psychopharmacology Institute