SPECS: Weight: 10-1/2 oz. Packed weight: 10-1/2 oz. Packed size: 20 in. x 5 in. x 4 in. Seasons: 3 R-Value: 2 Thickness: 0.9 Dimensions: 51 in. x 20 in. x 0.9 in. Design & Details: Closed-cell foam offers high-strength thick cushioning Triple layers provide a supple comfortable middle layer and a plush resilient top layer for support with a heat-efficient thermal insulation metalized film base to reflect body heat back for warmer sleep Wide tall hexagonal nodes molded with dual-density foam that conforms to the body Folding design offers extremely fast set-up and nesting nodes to eliminate wasted space between folded layers for tighter packing and compact size in storage High-strength support zones enhance comfort Well-balanced compression for easiness on a resting body Tall node height allows increased space for loose sleeping bag insulation to fill gaps and trap warmth around the body, providing 15% stronger heat-trapping Extremely lightweight for easy travel Abrasion resistant foam Strong padding supports well when used without additional layers Durable for outdoor use NEMO Lifetime Warranty