I'd suggest just trying it for yourself. It really depends on what your body tells you. For example if I sleep 6-7 hours I feel fine, if I sleep 8-10 hours I feel like absolute garbage with mind fog and all that. If I sleep ~12 hours it's totally fine.
So try and vary your sleep pattern over a few days and see what you like best!
I'd suggest just trying it for yourself. It really depends on what your body tells you. For example if I sleep 6-7 hours I feel fine, if I sleep 8-10 hours I feel like absolute garbage with mind fog and all that. If I sleep ~12 hours it's totally fine.
So try and vary your sleep pattern over a few days and see what you like best!
I have the same issue. Sleeping 8-12 hours is terrible. I love to sleep only 5-6 hours a day, only my body doesn't accept it any more...