Every one of my kids are sleep-in-ers... Apart from poppet; she gets up at 5 to potty! It is a painful time for me, kuki and kitty because we all have to go outside with her (the girls by choice, but I sure as heck don't look forward to it) because there is a demon cat a few doors down that I Really don't trust!
But after she goes back to bed that's her for up to 3 hours, then she's up for good
Dexter would lie in bed all day if you let him! After he goes out in the morning and gets his dentastix he runs straight upstairs and under the covers again!