DD2 is pretty good with bedtime, anywhere between 7 and 8 (usually about 7:30 depending on if we've eaten dinner yet), and sleeps through till about 8:30-9am if I let her.
DD1 is a total PITA though, if we don't MAKE her go to bed at a reasonable hour it's not uncommon for her to stay up until midnight - although she usually sleeps in the next morning if that's the case. If I put her to bed, it's usually around 9-9:30, about 10 she actually falls asleep, and will be up and about at 9am.