L.C.
I read in a book that sometimes kids will wake up because they need to use the bathroom, but not realize it. Have you tried putting her on the potty when that happens? My Daughter had a similar problem and we just ended up putting a little potty seat in her room, so if she had to use the potty, she could (she turned 3 in Dec). This particular book also said try to keep the lights off and do not say anything as this could bring your child out of the sleepy state even more. There's also a great book "Healthy Sleep Habits, Happy Child" by Marc Weissbluth, that may give you more insite or ideas as to why she's not sleeping and what you can do. Wish I coud be more helpful, but it's something to think about. Good Luck!