Big girl bed

Last week we took Alia's side off her crib...so now she has a "big girl bed". We have to lock the door on the bedroom, otherwise she comes running out of the room. Then, when we look at her, she turns around and runs faster back to her bed. It's funny...but not okay. She likes her bed and so far hasn't fallen out. Once we move she'll move into a twin bed-then she'll be an even bigger girl!