"being 24 years old, i have horrible sleep habits.  there are days i have to wake up early for school or work, and other days i sleep in, so the time that i go to sleep every night varies.  also, when i have something happening in the morning (work, school, etc...), my mind is constantly racing while i am trying to sleep.  now, before i go to sleep every night i take melatonin (the natrol brand), and it definitely relaxes me so i can comfortably fall asleep.  other sleeping pills i have previously used would make me wake up feeling groggy, still very tired, and with a migraine.  unlike other sleeping pills, i wake up feeling refreshed after taking melatonin.  i would highly recommend."