No, most times that's not true for me. I often even consciously think "ugh, I'm exhausted, why aren't I asleep right now" and yet still feel "stuck"—sometimes f

No, most times that's not true for me. I often even consciously think "ugh, I'm exhausted, why aren't I asleep right now" and yet still feel "stuck"—sometimes for hours more! I'll even finish what I was doing—scrolling HN, for example—and then cast about desperately for some new distraction, even though I know that what I want to do most, & will feel best, is going to sleep.