The appropriate dosage of melatonin varies from person to person, and individuals should consult with their doctor to determine the right amount for them. Melatonin is a hormone naturally produced by the brain's pineal gland as part of the circadian rhythm, the body's internal clock that regulates the sleep-wake cycle.

Sunlight inhibits melatonin production, signaling the body to wake up. However, many people turn to melatonin supplements to aid with sleep. David Kuhlmann of the American Academy of Sleep Medicine advises consulting with a healthcare professional for guidance on melatonin use and other sleep supplements.

While not a medical doctor, certified sleep science coach and professional mattress tester with five years of experience, has spoken with medical professionals and attended lectures on sleep aids and supplements. This expert emphasizes that the information provided is not a substitute for medical advice.