I don't like sleeping more than eight hours. I love waking up early on a foggy dayoff, drinking tea and listening to black metal. those are perfect mornings
usually about 7 hours, i cant function properly if i'm regularly getting less than 5, otherwise i'm alright. 7 is ideal. my actual time of sleeping varies wildly though - either i like to wake up really early or stay up all night
I think I would qualify as an insomniac. That is not to say I don't sleep because there are days where I can get up to as much as 4 hrs of sleep! I also often get sleep paralysis of the incredibly disturbing variety. And probably other stuff too.