The Comfort Plus series are formed using Dual Layer construction-two independent, offset high resolution layers. The higher resolution cell matrices allow greater sensitivity by distributing your body weight and shape over more small cells. The air sprung cells on the top and bottom layers are offset to give more uniform insulation, preventing cold spots. The mat's firmness can be more finely tuned with Dual Layer construction - The bottom layer is inflated firm for height, then the top layer inflated to the desired comfort level. If either layer is punctured, the other layer will provide redundancy, keeping you off the ground and sleeping uninterrupted. The Comfort Plus Insulated is available in Small, Regular and Large sizes (tapered shape). Air Sprung Cells - Air Sprung Cells are the core technology of our sleeping mat range, and are the reason why you will sleep better on a Sea to Summit sleeping mat. Instead of the typical baffled construction, Sea to Summit sleeping mats are constructed using a dot-weld pattern to create a high surface-area matrix of interconnected chambers called Air Sprung Cells. Air Sprung Cells operate in the same way as a pocket spring mattress. As each cell deforms independently the mattress conforms to your body shape. This makes for a softer and more comfortable feel with more body contact area and even dispersion of pressure. Comfort Plus series - Dual Layer Design - Dual layer construction uses two independent high resolution layers, giving greater sensitivity by distributing your body weight and shape over more cells. The two layers are offset for more uniform insulation and cushioning. The Comfort Plus range provides the most effective system for fine tuning the level of