Our baby has a favorite site while lying and although we put everything of interest to the other side and it responded only to the non-favorite site, we had to take him to the orthopedist, because the back of the head and was flat wrong. This sent us to the specialists helmet therapy and told us to use the cushion. After just three weeks of mind was clearly better. Thanks to the cushion our child the helmet has been spared. Should we have a second child, we will leave it to sleep from the very beginning on this pillow. Important: As soon as the children turn to night, no longer use!