I think that there’s an age component to this.
As a teen, I could NOT sleep between 9pm and 3am, left to my own devices, so during the summer, I slept from 4am to noon, unless I had to get up for something, in which case I took Benadryl, and went to bed around 2am, got up at 7 or 8, or whenever I needed to, and took a nap when I got back.
But I was developing insomnia. Soon, I lost the ability to nap, and the Benadryl stopped working.
During the school year, up to my junior year, I slept from about midnight to 6am, and fell asleep pretty well at midnight. I’d take a nap as soon as I got home from school.
But my senior year, I stopped napping, and just got be on 6 hours a night, and caught up by sleeping in on Sundays (and sometimes Saturdays, when, at any rate, I could sleep until 8:30, and still be at 10am services).
In my 20s, I stopping sleeping well when off a schedule, but you know how well sleep schedules work in college. I slept about six hours a night, sometimes 7, lots of times five, and swilled caffeine. “Caught up” by sleeping away the weekends, until a doctor told me how bad that was for me.
FF to now, after 20 years of sleep studies and trying different medication, things I suspected of quackery, like magnetic resonance, and somewhat less quacky, but weird, like vasal nerve stimulation.
I’m on several different meds, plus a PRN now, and if I have the discipline to take the meds exactly on time, and get to bed exactly on time, I wake up 10-30 minutes before my alarm goes off (unless I am sick-- then I need a second alarm), and I feel like hopping out of bed. The urge is irresistible.
This is why I am up now.
The time change has me out of whack. I fell asleep accidentally at 5:20, and slept until 10:30, or so. 5 hours. I need three more hours. I need to be up at five, although four would be OK. So I’m taking my PRN as soon as I finish this post, and lying back down.
I am completely a morning person.
Without drugs (or being sick), I CANNOT sleep between 4am-8am. Just CAN NOT. I feel a compulsion to get out of bed that is like an itch I MUST scratch.
I wake up WIDE awake, and MUST get out of bed.
I don’t brag about it. I know getting up at between 2:30 and 4 is weird, and I’m not bragging. I could get up at 6, and still call myself a morning person.