I am sacrificing sleep to read manga. Hmm.
These holidays, I've been getting to sleep around 1-2 am and waking up at 9-10am. Though last night I was in bed by 12 and up at 7:30.
During the school term, I go to bed about eleven and get up at six.
So pretty much seven hours a night all round, except when I randomly decide to pull an all-nighter for no particular reason save boredom.
I usually find something to do at night, though. Tonight I'm editing my recently-completed novella and reading Elfen Lied for inspiration.