The second possible scenario is what I appear to have. I have a natural sleep schedule that’s at odds with the day cycle. Left alone (e.g. during summer break), I wil go to sleep at 2am and wake up at noon. If I take melatonin at 10pm, I can fall asleep at 11. But my body still produces its own melatonin until noon, so I don’t wake up earlier—the net effect is that I sleep 14 hours and wake up tired.
If the melatonin works for the “falling asleep” part of the problem, why not simply use an alarm clock to wake yourself up after your desired number of hours of sleep?
If the melatonin works for the “falling asleep” part of the problem, why not simply use an alarm clock to wake yourself up after your desired number of hours of sleep?