This pillow is excellent for back sleepers! It's so difficult to find a pillow for me that isn't over stuffed and therefor causes neck pain. I dealt with a neck spasm a few years ago from sleeping on the incorrect pillow and the pain was blinding & slow to leave. So I'm paranoid about finding the correct pillow. It needs to support, but allow enough sinking that your neck is properly supported. And this does that. I don't know for how long it will do it, but I've slept on the pillow for about a week now and so far, it's really been great for me and what I need from a pillow