I have had the Serta Revolution super pillow top firm mattress for about two months as of 11/2013. I wanted a firm support without causing pressure point issues. We decided on this pillow top to add a little cushion on top of a firm mattress. I really would not consider this mattress firm. We have the Cal King. The feel of it is pretty plush. I kind of sink into it and I am only 115 pounds. The nice thing is my husband can be on the other side and I don't really feel him bouncing around like I did with our old mattress. He thinks that there is a bump in the middle of our mattress. It mentioned having extra support there but it seems like he might be right. It kind of raises in the middle. It is so hard to find the perfect mattress. I would have probably exchanged this mattress but the restock fee makes it to difficult. Its an ok mattress but I wouldn't buy it again.