Folding Mattress, Portable Tri-Fold Gel Memory Foam Mattress, 4 Inch Mattress with Washable Bamboo Cover, Non-Slip Bottom & Breathable Mesh Sides for Traveling, Camping, Guest BedConsiderate Construction The tri fold mattress features a 2 layer design. The upper layer is made of 1 inch pressure relief gel memory foam, while the lower layer is 3 inch high density support foam. The breathable mesh sides help control the overall temperature of the mattress; the skid resistant base prevents sliding; the metal zipper for convenient disassembly.Pressure Relief & Comfortable The 4 inch folding mattress easily accommodates your