Melatonin

Melatonin is a hormone produced by the pineal gland in your brain, primarily at night. It helps regulate your sleep-wake cycle, signaling to your body when it’s time to sleep and wake up. Levels of melatonin rise in the evening as it gets dark, promoting sleep, and decrease in the morning with light, helping you wake up. It is often used as a supplement to improve sleep quality, particularly for issues like jet lag or insomnia, but it's important to use it appropriately and consult a healthcare provider if considering it for sleep problems.