This is one way how they sleep...cribs right next to each other. I love peeking in and watching them. Sometimes funny things will happen though...For example. I've walked in a few times and the mattress looks like this...and Callie is sleeping under the mattress. I realize it's not a Sealy Posturepedic or anything -- but still...she lifts it up and prefers to sleep underneath. Very peculiar.