[kelnos]

Then again, my circadian rhythm has been pretty broken since I was a child. Not only does my body drift toward a 28-hour day (20 awake, 8 asleep) if I'm not careful, but I tend not to get tired enough to sleep until 3am or 4am.

Melatonin supplements fix my circadian rhythm. I don't take it every night, but when I do, I get tired and fall asleep within 3-5 hours, sleep for a solid 8 or 9, and then feel pretty good for the next day. And if I take it again that night at the appropriate time, I can keep myself much closer to a 24-hour wake/sleep cycle.