"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&#039;t fall back asleep. but i tend to overthink if i&#039;m just laying in bed trying to sleep so i&#039;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."