DH has back problems and we've owned every mattress made. Luckily we learned to ask about return policies because it takes a few nights to determine if it'll work. Can't be shy. Spent more on mattresses than we did for many of our cars. We do have the cooling gel topper on our guest bed. Turned it over for the winter for the warmth. I also have a topper to put on my pull out couch.mone topper we bought did puff up and Sams exchanged it for us. Also when the mattress wears out, have them come check it out. We got a huge refund due to the guarantee that it would last so many years but wore out early.