When Miranda gets her arms free of the blankets that swaddle her, she likes to stretch them above her head. Unfortunately for her, her arms barely reach above the top of her head. I think that if she were to really try, she might manage one hand-length above the top of her head. She’s never going to be good at rock climbing with that kind of reach.
Seems like most babies like to sleep in a “hands up” position. Also, they can’t touch the tops of their heads with their hands for a year or more. Is it because their heads are so big relative to their bodies?