D.B.
I don't exactly know how to help her sleep through the night, but my son did the same thing. He then started sleeping the whole night again and now every once and a while he gets up but falls back to sleep in bed with me. I generally try to make sure that he has a bottle before bed to make sure that his tummy is full, and change his diaper so that I know that isn't going to wake him. Babies are so confusing sometimes, but if you stick it out I'm sure things will get better soon.