Hahaha!!! My brother used to always call out "I want the blue one!". When I moved back home after separating from my ex, my brother was in the next room, and he was 17 at the time and called out "I want the blue one" in his sleep again... I thought it was so cute that he still said the same thing.
All of my kids chat away in their sleep... I do it too, so I think it is fairly normal. My DH always has a giggle at the things I say in my sleep, and it is kids funny to her what the kids say in theirs. Harrison is 18 months old and often giggles in his sleep which is the cutest thing! I am sure your daughter is fine and getting enough sleep.