DS1 will be 4 in Feb. He goes to bed around 8 and is also up at 6 most days. He has day sleeps at daycare but rarely at home. Sometimes he does if it has been a big day or he hasn't slept too well the night before then he will have a day sleep.
It doesn't bother me unless he is getting really cranky, then I try to get him to sit quietly and rest for a bit. It usually calms him down enough to be pleasant until bed time.

Are you having trouble with your DD in the late arv/ evenings? If she seems happy until bed time then I wouldn't worry. 10 hours a night, plus the occasional catch up sleep isn't too bad.