on a school night, he goes up at 8pm and turns light out at 9pm. it takes him a while getting his bag ready for the next day etc and he might read a bit. he has to be up at 6:45am.
at weekends his younger brother goes up at 8pm and goes straight to sleep as he is knackered by then (9 yr old) and ds1 goes up at 8:30 but leaves light on , reads or whatever till he pleases really.
ds1 is a bit of a lazybones in the hols really. if i left him to it he would go on the pc or watch tv all day long. so, at night when i am ready for watching tv, i feel he has watched enough!