Key Takeaways

While melatonin supplements can support the onset of sleep in most people, the time it takes to work and the duration of its activity can vary.

Extended-release melatonin may provide longer elevated melatonin levels than immediate-release formulations, resulting in fewer nighttime awakenings.

Melatonin should only be used to treat sleep problems after other causes of sleep disturbance have been ruled out and healthy bedtime habits have been established without improvement.

Melatonin is a natural hormone that helps control your sleep-wake cycle. Supplements can help you fall asleep more easily, often within an hour, although timing may vary depending on your dose, the type of supplement you take, and your sleep habits.

How Long Does it Take for Melatonin to Work?

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