Researchers have found that melatonin taken in a specific manner and dose may help induce sleep to reset your circadian rhythm. Night owls are people who, if left to their own body rhythm, would sleep from … let’s say… 5 AM to noon.
We spontaneously increase our melatonin 2 hours before our regular bedtime. Those night owls may have their melatonin surge at 3 am.
It has been found that gently increasing melatonin, given as 0.5 to 1.0 mg 4 hours before the desired sleep time may help increase the body’s melatonin (at a more appropriate time) and help that individual fall asleep sooner.
Please see your physician to confirm that there are not any other confounding issues causing altered sleep patterns.
Hope this helps.