In need of some serious help...How much can a pillow effect sleep? I have tried almost everything from feather pillows to hard pillows, memory foam pillows to contured pillow. Horse shoe neck pillows and the list goes on. I have an abnormally straight neck (chiropractor x-rayed my neck a few years ago) due to a riding accident that happened years ago Im sure. And i know since far every pillow i have tried doesn't give me any support. Please advice is welcome! Thank you.