Hard habit to break

When Owen was a baby he used to pull his blankets up over his head and sleep. It used to freak everybody out because we were all afraid he was going to smother, but if you uncovered his face he would always wake up and pull the blanket back up. When we put Owen to bed at night, we make sure he is all tucked in so he won't get cold. Every time we go to get him in the morning he has kicked all the covers off and pulled his blanket back over his head. And for some reason he sleeps sideways. I will never figure him out!