I hope it does eventually help you, Scooter.

I'm curious, have you tried setting an alarm and trying to get up after fewer hours sleep? If not, it might be worth trying and seeing how you feel once you get up, after doing that for a few days. Nine hours might be a good starting goal. That's a good amount of sleep, but not too much.

The hours of light and recent gloominess outside have made me tired earlier and yearn for more sleep. I think it does that for many people. I think "habits" kind of affect sleep patterns to a degree, too. If you're in an established habit of getting up after 8 hours sleep, many people won't sleep much beyond that even on weekends. If people are used to sleeping more hours, they will.

I know that if I deliberately over sleep on weekends, I actually have a harder time finally getting going for the day than if I get up at a reasonable time like 7:30 or 8 am on weekends. Sometimes that oversleeping "hangover" negatively affects my mood. Waking up at a reasonable time and then trying to fall asleep again is a no no for me. I always regret it.

I have read that people in depression who suddenly become severely deprived of sleep after hypersomnia sometimes switch to mania (or mixed mania). That's hugely bad news and is sometimes regretable if done deliberately, but I think that if reasonable sleep reduction is done (from 12+ hours to 9) perhaps that could be helpful. This is something to ask your psychiatrist about, if you're interested in the idea. I wouldn't fiddle around with such idea before checking with him/her.