I have been looking quite literally for years for the right pillow. Suddenly one day I started getting terrible neck pain that would run down my back. Nothing helped. Thought maybe it was the pillow and started sleeping with a folded blanket which was practically flat. Pain disappeared. This is the first flat pillow I have found that is actually flat and feels exactly like laying on that blanket. Now I don’t have to adjust the blanket or refold it when it bunches up. The ONLY downside that kept it being 5 stars is that I don’t get that “cool” feeling when I turn the pillow over in the middle of the night. I’ve tried different pillow cases, too. It probably has something to do with the pillow thickness, but I’m happy with it.