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Harnessing our decades of experience in insulation and innovative heat-reflective technology, we’ve created a range of lightweight, packable, comfortable sleeping mats as the perfect foundation for your sleep system.

What is an R-value?The R-value is a measure used to rate how well your sleeping mat will stop heat loss. Thermal resistance is the measurement that indicates a materials ability to insulate - there are a number of different ways to express this but, as they all measure the same factor, they are all related. The starting point is the R-value.In the past, some brands quoted the R-value in SI units, …