It sure seems like I've heard that some of those memory foam dog beds are made to keep a dog cool. I suppose you have to search for that feature though because the ones made for people can be hot, or so I've heard, at least the botton of the line ones.(yet still pretty expensive) That catalog Dr.s Foster and Smith, and the Orvis catalog have a lot of dog beds to choose from. I have been mattress shopping and buying recently and for people, and probably for dogs there is a foam one that is made from latex and it costs less than memory foam and is probably cooler. I'm fairly certain I've seen something like that for dogs.