I purchased this pillow after tying it out when mattress shopping.  I was excited to give it a try as it was time to replace my current pillow.  I am a stomach sleeper and have been sleeping with a king size pillow until now.  I have been using my Level 0.0 performance pillow for a couple of weeks now and I just don't feel like it has enough filling in it to give me the upper body comfort I have been used to.  I actually switched back to my old king size pillow just yesterday.  This pillow was not worth the big investment for me.  I'm not sure if I can return it or not. I'm not sure what I will do with it.