I'm perfect

I was tucking Shelby into bed the other night and she told me to cover her up with the blanket Ms. Peggy made for her when she was born. While spreading it out, I told her "you're too big, see it doesn't cover you". As I was turning to leave, I heard Shelby say (not to me, but just in a quiet tone more to herself) "I'm not too big, I'm perfect".