yes yes, I think most babies like this posture. I always say my baby sleep like a 'MTR symbol'!
I think it is better not to "kum"被"kum"over膊頭, because our babies now know how to use hands to grap things, and it is easy for them to "kum" over their faces......my mother teaches me to let him wear thicker clothes and just use a light blanket over his tummy and legs.