What's missing is how much ability you have to sleep, rather than some sort of sometimes controllable factor like schedule. In my case, my brain wakes me up with anxiety one hour or more before the alarm rings (I never check time, I'm guessing). My room is always cold and relatively dark - not photo development dark, but not far.

The cortisol spikes are what get me. I can drink or not drink, exercise or not exercise, take magnesium or not take magnesium. The brain wants to tell me at 630 or 7 all the things that can go wrong or todos, instead of letting me sleep til 8. Sometimes it's much earlier than that.

I also wake up at the slightest sound or movement. It's been like this since I was a child. I'm defective, and all the bro science Youtube videos with top 10 science -based 'hacks' don't solve the problem. Know what does? Anti anxiety medication, but doctors don't prescribe benzos anymore.