DD 3 in Sep, sleeps around 10hrs at night and naps for around 2hrs from 11ish. She fights her naps for about 5 minutes then is out like a light.
I'm not too worried about her sleeping pattern though. She's a fire cracker that's always on the move AND apparently big sleepers make for super smart kiddies (not sure if that's correct- I just read it somewhere once and decided to roll with it ). Her big sis (7yrs) also slept like a trooper too so I know there is no harm in letting them sleep. It's not to bad on mums sanity either! Woohoo!