On average, I get about 8 hours. When I'm in school, I get less than that and if I'm on summer vacation, I usually get more than that. It just depends on the time of year really.
About 9-10 hours of sleep, sometimes 8 though. In the summer up to 11 hours and on weekends/sometimes in the summer 7-9 hours of sleep, I usually stay up late and wake up early.