If you’re having trouble sleeping, melatonin is a popular and easy remedy. It’s effective for many people, doesn’t have any serious safety issues, and is available as pills or gummies for pennies a dose. It’s also misunderstood, though: melatonin is not a traditional sleeping pill.
Source: How Melatonin Helps You Sleep
If you’re able to get to sleep, but have trouble staying there? Melatonin is unlikely to help.
Also worth mentioning that, thanks to the regulatory structure around ‘supplements’ – much of the melatonin you buy contains either no melatonin or way, way too much. In fact, even the smallest Over The Counter (OTC) doses are wildly higher than the doses used in clinical tests, so it might actually be kind of good that the odds are good there are no active ingredients in OTC melatonin.