Let's say it's midnight, I'm tired, and I'm home alone with nothing better to do. I know I have to get up early and I'll feel better / be more productive the next day in direct proportion to how much sleep I get. I still just don’t want to go to bed. It requires real force of will not to stay up and find something else to do, even if it just amounts to reading random stuff online or otherwise killing time.

I’ve gotten better at just making myself go to bed anyway in that situation, but I don’t know why it should take any effort in the first place. Going to sleep should – at least occasionally -- be my most attractive alternative, even from a short-term perspective. But for some reason it never feels that way.

I don’t have insomnia, nightmares, apnea or any other condition (that I know of) that would make sleep/bed unpleasant – so at least in my case the act of sleep itself doesn’t seem to be a factor.