Wow! This product looked majorly cheesy when I first saw it and I have to be honest and say that I wouldn't have bought it except I read some good reviews on it. It completely took care of the problem of a saggy mattress without it being stiff. Someone had recommended that I buy some thick plywood to fix the problem but I am glad that I found Mattress Rx instead. I use it in conjunction with a 2 inch memory foam topper that I found on Overstock for a low price and I am sleeping better, longer and deeper than I ever have.