we hear about the sleep number bed. >> this is right now the top scoring mattress. consumer reports top scoring rat recess. it is foam and has an air chamber beneath. it you can adjust the firmness and this is the only mattress thats a ceed the back support test. this ran excellent and to porfor an ashley sleep mattress that we tested. >> really? >> yeah, lots of range and we used sensors and used men and women and a cross-section of people. and the beauty of the sensors, dozens of them they are repoetable and scientific and at that point, we can say how well the mattress supports the back