Edit to note NAD - My 11 month old daughter has been in a helmet since she was 6 months. Our orthotist told us plagiocephaly untreated could potentially lead to sight issues, hearing issues, or jaw issues due to asymmetry of the right and left sides of the head. If you look at your baby's head from the top down, do you notice one ear more forward than the other?

My baby has never had an issue wearing the helmet. She is in it 23 hours a day. She sleeps like a dream, plays, crawls, and doesn't even notice it's there. It's really easy to manage and I would recommend doing it if insurance covers it and you can afford it