We gave up our 25+year old futon which was hard as a rock when our daughter gave us her Select-Comfort or Comfort-Aire (can't remember which). It looks like a conventional mattress, but each side has baffles which you fill with air, at the touch of a button. The motor for each side sits under the bed, with remote controls. I used to ache horribly; now i have hardly any pain after a good night's sleep. I have my side the way I like it and Rog has his as he likes it. Seems to work well. I AM intererested in the NASA foam stuff. Is that the tempupedic you all are talking about? I wanted to try a pillow of it I saw at a store, but it was expensive!