Same here actually, except a bit later if I'm not waking up to an alarm, I will drift towards waking up at 1-2pm and don't have as much trouble getting to sleep

Same here actually, except a bit later if I'm not waking up to an alarm, I will drift towards waking up at 1-2pm and don't have as much trouble getting to sleep. Even then I can easily make myself stay up later than usual, and would take advantage of that fact to "flip" my schedule when needed over the course of a week by just going to bed "later" and getting up "later" every day until it was early instead of late. Good enough for making it to some important early as hell meeting or flight or whatever, but my schedule would quickly fall forward back to my normal preferred time. Unfortunately for me, just 30 minutes or pre sleep routine isn't really enough, any time I allow myself to encroach on that 2 hour wind down period too much, I have a much harder time falling asleep. Things like chamomile tea and melatonin do help with falling asleep, but not with staying asleep, if I use them to fall asleep early I'll just wake back up 20 minutes later. Ambien works wonders but I try to only use it when I'm really desperate, a few times a year.