Check out its weight, As I looked at options, I saw wide variation in weight which I believe translated into softness
One of the reasons I got this now is that I received a memory foam contour pillow as a birthday present
I have bought a few over the years
I think it is thick enough to protect the mattress well and be protective against spills, as long as you clean up right away
sent a letter to me after my purchase thanking me and offering me another coupon
helped with my back pain too!!!