My DS2 had both plagiocephaly and torticollis (shorter neck muscles) as an infant. Today his head is still not completely round and if I run my hand over it, I can feel it's odd shape. He's always had a rather large head and they have ruled out other medical problems. It was really strange when he was an infant, he would always turn his head to the left side, therefore, causing the right side to go flat. We thought it was great, he was sleeping through the night at 4 weeks as long as we put him in his bouncy seat and let him turn his head to the side. If we had known that we were helping to make the situation worse, we never would have. We worked really hard at teaching him to sleep in other positions. He went for physical therapy for 1 1/2 years in order to overcome the torticollis. I think having tubes put in his ears for repeated ear infections/fluid helped with the torticollis, although the doctors won't confirm that. With the plagiocephaly, we had explored the idea of a Ballard helmet (one the child wears for most of the time) but that wasn't for us. We wanted to try the repositioning first and although his head isn't perfect, in all other ways, he is to us.