Yep. Narcoleptic here. Sort of the opposite problem where I sleep 9 hours and wake up exhausted and continue to struggle until I fall asleep again. I mention that I'm tired and I get the whole maybe you're sleeping too much, don't look at screens before bed, try melatonin, maybe some caffeine will wake you up, get some exercise. I try not to take it out on anyone because they mean well, but if it's on the first page of Google when you look up exhausted after 8 hours of sleep, I promise you, I've tried it.

I did all the lifestyle changes. Then I got diagnosed. The drugs work. Nothing else besides low carb eating did before that.