Plus, which has more possible side effects.

Both L-theanine and melatonin supplements can help improve your sleep quality. There are very few head-to-head comparisons of the two sleep aids. However, one report found that melatonin led to a ...

Melatonin and ashwagandha may improve sleep and reduce stress symptoms. Taking them together is not contraindicated, but is not proven to upgrade benefits and could increase side effects.

And how to tell if you might need something else entirely.

Many people take melatonin to help them sleep -- but, for some, the supplement can make the morning struggle even worse. Melatonin is called the "hormone of darkness," because our bodies produce it ...

The small, innocent-looking bottle of melatonin supplements sitting on millions of American nightstands has become as common as a glass of water before bed. Usage of this sleep aid has skyrocketed ...

"Melatonin helps signal to the brain that it's time to sleep. Tart cherry juice, which can be bought in the majority of local supermarkets, is one of the few drinks that naturally contains this ...

Melatonin isn't the only sleep supplement. If you're looking for help falling asleep or improving your sleep quality, you may ...

Add Yahoo as a preferred source to see more of our stories on Google. Magnesium supplements not only help with sleep, they also come with several other benefits. (Getty Images) (PhotoAlto/Frederic ...