The Nemo Tensor All-Season is an insulated air sleeping pad with a 5.4 R-value, which Nemo rates for four-season use. It is 8.9 cm thick, uses two suspended layers of metallised Thermal Mirror film inside Spaceframe baffles, and comes in four sizes including a mummy cut. Who it's for A one-pad-does-everything choice: warm enough for frosty nights and snow camping, light enough that you are not carrying a winter pad through summer. If you own one pad and camp across the year, this is the sensible R-value to land on. If you only ever camp in warm weather, you are carrying insulation you will not use and a lighter, lower R-value pad will do. At the other end, dedicated winter mountaineering and extended snow camping is where the Tensor Extreme Conditions and its 8.5 R-value starts to make sense. Key features 5.4 R-value from two suspended layers of metallised Thermal Mirror film, reflecting body heat back rather than adding bulk. Quiet. The film layers float inside the baffles rather than being bonded to the shell, which is why this pad avoids the crisp packet noise insulated air pads are known for. If you share a tent, this is a bigger deal than the spec sheet makes it sound. Spaceframe baffles use low-stretch internal trusses, so the pad supports you evenly instead of rolling you off the side like a waterbed. 8.9 cm of loft, deep enough to keep a hip off stones and roots on rough ground. 20D nylon top, 40D nylon bottom - the tougher fabric faces the ground where the abrasion happens. Laylow zero-profile valve for micro-adjusting firmness, plus a Vortex pump sack, velcro strap and repair patches in the box. How it compares Within the Tensor range the decision is warmth against weight and price. The All-Season sits at 5.4 R-value on two layers of Thermal Mirror film. The Tensor Extreme Conditions doubles up to four layers in an Apex baffle structure for 8.5, which Nemo positions for winter camping and extreme alpine use. Both are 8.9 cm thick and share the 20D/40D fabrics, so the difference you are paying for is insulation, not comfort or durability. What's in the box Tensor All-Season pad Vortex pump sack Stuff sack and velcro strap Repair patches
