My LO sleeps on his back, but always turns his head to the left. As a result he's starting to get a bit of a flat head. My aunt said there are some products out there that can help keep their head propped to the proper side. I tried googling but can't find anything. Anyone have any experience?

DS #1 born 12.3.13
BFP #2 09.21.14 EDD: 06.06.15

Re: Flat head
PT and pedi said to keep correcting it and stretch as much as possible.