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Highlander Nap-Pak Arctic R11 Mummy Lite Inflatable Sleeping Mat

What Is An R-Value? A Guide to Sleeping Mat Insulation Ratings

Learn what sleeping mat R-values mean, how they measure insulation performance and why outdoor brands use them. This UK guide explains R-value ratings, ASTM testing standards and how to choose...

Alex Silva | May 27, 2026

Buying Guide, R-Values, Sleeping Mats, Snugpak
Why Don’t Snugpak Use R-Values in Their Range of Sleeping Mats?
Snugpak sleeping mats are popular across the UK outdoor and tactical market, but many models do not feature official R-value insulation ratings. This guide explains why, what R-values actually mean,...
Alex Silva | May 27, 2026

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What Is An R-Value? A Guide to Sleeping Mat Insulation Ratings

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What Is An R-Value? A Guide to Sleeping Mat Insulation Ratings

Why Don’t Snugpak Use R-Values in Their Range of Sleeping Mats?

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