I need help. I have an 11 week old who sleeps on his back. He always has his head going one way. No matter what I do he goes back to that position. He moves his neck and head great. Everytime I've gone to the pediatrician, I even went last week for his shots, they never said anything about his head. They said its measuring great. Now the flat spot isn't big. It's on the back right of his head. I was wondering who else has dealt with this and what I can do to help it. He only lays down when he's sleeping. I'm trying to increase tummy time also. Please help. 

Update: thank you for commenting. One of the things I have tried was switching the position he lays. No matter what he goes to that one position. I'm glad to see everyone is being respectful, I appreciate it a lot. ☺️