DD was 12 in May she goes up at 9, though she tries to drag it out, she reads or messes about on her Ipod until about 9.30 sometimes 10.
She gets up between 6 and 6.30, I never have to wake her.
She would go to bed later and did in the holidays but with two under two as well as her and DS1 DH and I need an hour alone time before we shuffle off to bed at 10.
She says EVERYONE else is allowed to stay up forever and watch whatever they want and can text all night and NO-ONE elses mum switches the modem off at 9.30.