When Olivia was younger she never once tried to climb out of her crib or really climb on anything. even though she did so well in her crib, October of 2009 we decided it was time to try a big girl bed. After many tears shed... by me, we did it. She slept perfectly in her big girl bed!! it is now 7 months later and our little girl still doesn't know she can get out of bed in the morning without us coming to get her! It's great!!!! I know... now that I'm bragging about it, she is going to get out about 10 times at bedtime and bug us at 6:00 am, but we are just enjoying it while it lasts!