After our pediatrician said that the mind of our son was too flat, he would prescribe him physiotherapy. As I have heard from many parents who were having their kids there, what it is for a torture for the baby, I decided first to look for alternative methods to form the back of his head. At a forum I came across by chance on this pillow and thought to myself: I can not do much wrong and maybe it will help with that? Said and done. Our little one was 5 months old when we got the pillows. Now, after just 4 weeks, his mind is always round! I'm surprised and really happy that we have managed without physiotherapy! I think if more have elapsed further 4-8 weeks, his mind will be perfectly round. Great product! Too bad that the pediatricians not hear of it and not recommended. I will recommend it anyway anyone whose child has a similar problem.