Upgrade your innerspring or memory foam mattress with the Cool Gel Memory Foam 4.5-Inch Sofa Bed Mattress. It easily folds in most sleep sofas and maintains its original shape after many uses. Rest easy knowing that your guests will be comfortable on this plush gel-infused memory foam mattress. And since our gel memory foam uses a porous, open-cell design, it allows for greater circulation and meets CertiPUR-US program standards for performance, emissions, and durability. Look for more innovative specialty sleep products from Cool Gel.