Sea to Summit Comfort Light Mat NEW Air Sprung Cells provide unrivalled comfort and support. The Comfort Light Regular is designed with 331 air sprung cells. Multi-Function Valve integrates inflation and deflation plus pressure adjustment into one low-profile design. Extruded TPU Lamination with Antimicrobial treatment prevents delamination and internal bacterial growth. Equivalent R-Value is 1.0 High quality Nylon stuff sack and a 3M repair kit included.