Nemo's Tensor Alpine Regular Mummy Sleeping Mat is a serious piece of kit for those want top end performance without compromising weight or pack size.
This pinnacle mountaineering pad offers lightweight, compact, extreme warmth without sacrificing comfort. Three layers of suspended metalized film and a unique construction efficiently retains your own body heat. Tensor™ Alpine brings warmth and comfort to cold weather camping. Whether at base camp or high on the mountain before a summit push, the combination of compact size, light weight, and warmth cannot be beat.
A zero-profile, multi-functional, micro-adjustable valve offers convenient inflation and fast deflation. The included Vortex™ pump sack provides fast and easy inflation without introducing moisture into your pad.
Patent-pending Spaceframe Baffles™ are low-stretch trusses that provide greater stability and point deflection resistance than competitors. Tensor™ Alpine's unique construction sleeps quieter than other pads.
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Nemo's Tensor Alpine Regular Mummy Sleeping Mat is an extremely small and functional package. Don't let the lack of R value put you off this mat is given a temperature range of -23 to -29 degrees Celsius which is very impressive given the low weight and pack size.
The mat packs the same size as a 1 litre Nalgene bottle and is quickly inflated using the included vortex pump sack. Using the sack prevents moisture getting into the mat. The mat is thick and comfortable to sleep on, I didn't sink through when laying on my side. Despite the low weight the material feels durable and is quiet without the 'wrinkle' effect of other mats so wriggly sleepers have no fear.
- Reviewed by BasecampGear
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From 2020, there is a new industry standard for measuring the R-value (level of insulation) of sleeping mats – ASTM F3340-18. This new standard is the sleeping mat equivalent to the EN rating for sleeping bags.
You can now directly compare the R-value of mats rated using the ASTM F3340-18 with confidence that is a fair and accurate comparison between mats. In simple terms, the higher the R-value, the warmer the mat.
In general terms, an R-value below 2.0 is for summer use, 2.0 to 4.0 is for cooler 3 season use and 4.0+ is for winter temperatures. This will be also be dependent on your sleeping bag, how cold you sleep etc. Please contact our customer service team if you need advice on choosing the right mat for your activity.