Yes we worry so much when we dont know what is going on and porfessionals are telling us all these things...i too bought various wedges, pillows for the side of dd's head, would sit in the room when i rolled her on her side (incase she rolled over onto her face!) put toys on one side of her cot (which she wasnt too interested in anyway) and i was also attending physio which funny enough was for her talipes and ended up being about her head and the strength on her neck! I decided to stop the physio as her feet were corrected and thought the physio was just inventing things. DD is fine. I did a lot of tummy time with her so she could practice strengthening her neck and as she grew and developed her head and neck are fine. If you are still concerned, the towel works fine and in some ways better then the wedges.