thats normal. babies tend to sleep on one side as a result the shape of the head tend to be awkward. my mother in law nags at me to shift my son's head whenever he slept on one side during my confinement at her house. after a get home i cant be bothered to do that at all cos from what my son's paeditrician told me during check up it is normal and there's no need to do anything. now at 21 mths i dont see his head being misshapened at all. i dont really bother with what the elders say. most of the time depends on common sense. when my son was born his ears tend to be folded in and again mother in law ask me open up those folds whenever i can. i just ignored and the ears get back in shape on its own when he reaches 3mths. if you were to believe what elders believe, then take a look at people around you. are their heads in a funny shape?