Like is it consistent or does it change?
How many hours do you sleep a night on average?
Do feel you get enough sleep?
for a month or so I'll sleep 13 plus hours and still feel like I need more rest, and if I force myself to only sleep 8 I feel like a total zombie, but if I sleep 13-15 hours during this period I feel more rested, than suddenly I'll sleep 3-4 hours a night and feel absolutley rested. it's weird.