Sleep Hormones and Their Functions Sleep isn’t just about closing your eyes; it’s a carefully regulated biological process controlled by a network of hormones . These chemical messengers signal when to feel awake, when to wind down, and how deeply you sleep. Understanding how sleep hormones work can help you improve your rest naturally and maintain better overall health. What Are Sleep Hormones? Sleep hormones are substances produced by different glands in the body that regulate your sleep-wake cycle, also known as the circadian rhythm. These hormones respond to environmental cues like light, stress, and activity levels to keep your body in balance. Key Sleep Hormones and Their Functions Melatonin – The Sleep Initiator Melatonin is the most well-known sleep hormone. It is produced by the pineal gland and released in response to darkness. Functions: Signals your body that it’s time to sleep Helps lower body temperature Promotes relaxation and drowsiness Melatonin levels rise in the e...