I bought these pillows almost 3 years ago and I haven't woke with up with a stiff neck ever since. I tried many, many others and paid lots more for them, but none could compare to these. I know when you first get them they seem a little slight, but believe me the are the best ever!! I used to have a sore neck most of the time, but not since I started sleeping on these. Anyway they have been a Godsend for me.