How many hours do you sleep every day (or, every night)?

Given the importance of sleep, I sleep 8 hours a day. I'm not a night person, so I can't stay up really late at night. I usually wake up around 7 AM and go to sleep at 10 PM.

Given the importance of sleep, I sleep 8 hours per day. I'm not a night person, so I can get up in the morning really early, at about 7 AM, and sleep at 10 PM.