The thing you might not be realizing is that sleep directly impacts your metabolic health. Yes, focus on diet, but sleep also drives diet desires. It's a vicious cycle.

Your comment about "not enough REM" sleep shows how little people truly understand about sleep. It's not REM (or even the amount of REM) that is the issue. REM is dreaming sleep and emotional processing. N3 and to a lesser extent N2, often referred to as deep sleep is the stage where the restorative activity and hormonal balance occurs.

Fine, fine, I get it. I am sort of chagrined that sibling comments are missing the whole point, and that is about quality of sleep and rest.

Having C-PTSD incipient since my childhood, I've really never, ever known what it's like to have a good night's restful sleep, or a regular schedule of days awake and nights asleep. It's been completely elusive to me. Obviously it is one of the most important things I could do, but how?