Actually in bed, trying to fall asleep, at 23:00 is typical. I'd prefer to get in bed at 22:00 but my wife is a night owl, so this is a compromise for us.

Some sleep deprivation does accumulate to the point that I might turn off my alarm and sleep until 7:00 (when our kids are trained to get up) and skip running some mornings, but I hate doing that; I immediately feel like I've fallen behind schedule so the morning becomes more stressful, and I'm mad that I didn't get any exercise on top of it.

I wake up at 6AM like this person. I go to sleep around 10PM. Honestly, the best approach is to wake up at whatever time every single day even on weekends and then get to bed when you are tired after 7PM. If you keep doing this you will naturally find your appropriate bed time after about 2 weeks. Most people just botch this because they sleep in on weekends and destroy their body's attempt to set a cycle.

Maybe........go to bed before 12 and see how you feel? Seems obvious.