We bought Sharper Image memory foam toppers at Sam's. It has a cool gel on one side and not on the other. It does feel cool when you first get in bed, but to me the effect seems to disappear after a while. We bought two twins but you could buy a king size and cut it in half. We didn't cut to match the curved end, but I think I will cut mine. The thought was that without cutting the curve, each of us could flip our topper as we wished. With the curve cut we either have to choose cool or not and can't change, or we can cut them the same and then we can swap the toppers and flip them so that we both have the cool side up or both don't.
"You cannot reason someone out of a position they have not been reasoned into"
Al, K5TAN and Missy, N4RGO
2002 Classic 30 Slideout
2001 Safari 25 RB Twin (Gone, but not forgotten)
2013 Dodge 2500 Laramie 4x4 Megacab Cummins
WBCCI 1322, TAC FL-39, AIR 82265