I had one that climbed out and what I did was stand outside the door and as soon as I heard his feet hit the floor I swooped in and picked him up and I sternly said "no climbing out" and put him back in and then left he did it again and I did the same thing and after two days he never climbed out again .... You have to use a stern face and voice and keep doing it and it won't last long ..... If you have a video monitor that allows you to speak to the kids ...use it and as soon as she goes to stand up tell her to lay down ...