Why Your Body Needs Melatonin for Restful Sleep If you've ever struggled to fall asleep, wake up feeling groggy, or find your sleep cycle thrown off after travel, you’ve likely heard of melatonin. But melatonin isn’t just a supplement on store shelves, it’s a natural hormone that your body relies on every day for deep, restful sleep. In this post, we’ll explore what melatonin does, why your body needs it, and how you can support healthy melatonin levels for better sleep and overall wellness. What Is Melatonin? Melatonin is a hormone your body naturally produces , primarily in the pineal gland, which is located in the brain. Often referred to as the “sleep hormone,” melatonin plays a central role in regulating your circadian rhythm, the internal clock that tells your body when to sleep and wake. Melatonin levels rise in the evening as daylight fades, signaling to your brain that it’s time to wind down. As the sun rises and light exposure increases, melatonin production slows, ...