Sometimes it's worth it to add a little extra weight for a lot of extra warmth. The Sea To Summit Comfort Light Insulated Sleeping Pad keeps you warm and comfy on cold nights, and at well under two pounds it's still lightweight enough for backpacking. Air Sprung cells evenly distribute pressure so the pad conforms to your body for a comfier feel than with traditional baffle construction. Thermalite insulation traps warm air and protects you from the cold ground, and Exkin Platinum thermal technology uses a super thin lightweight metalized layer to reflect heat back to your body for even more cozy goodness. The Hybrid layer design uses dual layer construction in the torso for maximum comfort and insulation, and single layer construction in the head and legs keeps weight down and increases packability. The tough, 40D nylon face resists tears so it doesn't get shredded by rocky terrain. The multi function, one way valve makes inflation easier, and it has a button you can press to slowly release air for fine tuned comfort. A rapid air dump port lets you deflate the pad quickly when you're ready to pack up camp. It also comes with a stuff sack for convenient storage and a repair kit so you can fix rips when you're out in the middle of nowhere.