Melatonin doesn't seem to work the same way for everyone with insomnia. While some people get a noticeable boost in how long they sleep, most studies show it only helps a small number of patients compared to a placebo.

Melatonin helps people fall asleep faster and sleep longer, but the actual improvement is often too small to make a real difference in how they feel and function during the day, leaving doctors unsure if it's truly worth recommending.

Taking melatonin supplements for a short time can help adults with insomnia fall asleep faster and feel like they're sleeping better. This effect is commonly seen at doses between 0.5 and 5 milligrams.

Most research reviews on using melatonin for sleep problems aren't very high quality, which makes it hard to be sure if it really works or is safe over the long term. Because of this, doctors should be careful when relying on these studies to make treatment decisions.

Taking melatonin for a short time can help you fall asleep faster and sleep for a longer period, but experts aren't sure if these improvements are actually noticeable or important in everyday life.

Does taking melatonin for sleep over a long period actually increase the chance of dying from any cause? This claim suggests that people who use melatonin regularly for insomnia might face a higher risk of death compared to those who do not use it.