insomnia
"Works very well at first to help you fall asleep but I sometimes wake up very early or in the middle of the night and can't fall back asleep. But I tend to overthink if I'm just laying in bed trying to sleep so I'm glad that the melatonin helps me fall asleep quickly. Quite useful for when I have to stay up late doing homework and then wake up early the next day for class. I take it within an hour before I go to sleep and my eyelids get heavier and heavier from there."