The REI Co-op Helix Insulated Air Sleeping Pad features 3 inches of thickness with a gridded weld pattern for a flat, mattress-like surface. It uses 2-layer reflective insulation for warmth without added weight. Dual custom valves allow quick inflation and deflation with the included pump sack. Its interior baffle design enhances durability. The softly tapered shape fits trapezoidal tents and maximizes sleeping surface. It has an R-value of 4.9, suited for cold weather insulation. Made with 30-denier ripstop polyester and TPU lamination. Includes pump sack, repair kit, and stuff sack.