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    SLEEPING MATS, INSULATION AND R-VALUE

    Nov 01, 2018 2 minutes

    On a recent summit attempt of Mount Kilimanjaro, I was using the NeoAir® XTherm™ from Therm-a-Rest, with an R-value of 5.7. This got me thinking. What actually did that 5.7 mean?

    The R-value is a measure of resistance to heat flow through a given thickness of

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