can you bend like him?

We left our babies with my mom for 3 nights when we went our short trip, due to space contraints, they all slept in the same sleeping area with their cousins. Eversince we came back home, our babies refused to sleep in their respective rooms. So first night, boy bunked into girl's room and second night, girl bunked into boy's room. See how "comfortable" my son sleeping position. He had his feet nicely planted on the floor and his upper torso on top of this pillow on the bed!!! the bed is at least 16 inches above the floor!!!! Amazed how flexible he is!!!! Just realised they also got the same sleeping posture, with their hand raised up.