It doesn't matter when she sleeps as long as she's getting all her sleep. My daughter is 2 1/2. When we brought her home she used to sleep at least 12-14 hours straights. Now that she's older it's nothing for her to go to bed at 10 pm and not get up till noon. Don't worry about it. Every child is different. I always said never wake a sleeping baby! She'll be fine!