Highlander NAP-PAK ARCTIC R11 Inflatable Sleeping Mat | Extreme Cold Insulation
Description
Highlander NAP-PAK ARCTIC R11 Inflatable Sleeping Mat
Highlander NAP-PAK ARCTIC is a high-performance inflatable sleeping mat engineered for extreme cold conditions. With an independently tested R-value of 11 (ASTM F3340), it delivers genuine four-season insulation at a weight and price point rarely seen in this category. Designed for winter camping, snow use, and cold-ground environments, it offers exceptional warmth, comfort, and packability.
Exceptional R-Value 11 Insulation
The NAP-PAK ARCTIC achieves its outstanding thermal performance through a three-layer aluminium foil insulation system combined with a 10 cm thick air-cell baffle construction. This design dramatically reduces heat loss to frozen or snow-covered ground and places the mat well above typical winter sleeping mats rated around R6–R8.
The R-value of 11 has been independently tested under the ASTM F3340 industry standard, providing reliable and comparable insulation data for cold-weather use.
Comfortable 10 cm Air-Cell Construction
With a thickness of 10 cm, the mat keeps the user well off the ground, while the interconnected air-cell baffles distribute body weight evenly. This results in a noticeably more supportive and comfortable sleeping surface compared to thinner or budget mats, even on uneven terrain.
Lightweight, Compact, and Field-Ready
Despite its high insulation level, the NAP-PAK ARCTIC weighs only 900 g (without stuff sack) and packs down to 28 × 14 cm. The shell is made from durable 20D ripstop nylon, balancing low weight with practical durability for year-round backpacking.
Efficient Valve System
The mat features a dual-layer TPU valve that allows fast inflation, precise firmness adjustment, and rapid deflation. It can be inflated by breath, though use of a pump sack is recommended to reduce moisture buildup and speed up inflation.
Key Features
- ASTM F3340 tested R-value 11 insulation
- 10 cm thick air-cell baffle construction
- 3-layer aluminium foil thermal insulation
- Lightweight at approximately 900 g
- Compact packed size for backpacking
- Durable 20D ripstop nylon shell
- Dual-layer TPU valve for easy inflation and deflation
- Includes stuff sack
Technical Specifications
| R-Value | 11 (ASTM F3340 tested) |
| Thickness | 10 cm |
| Dimensions (unfolded) | 189 × 63 × 10 cm |
| Packed Size | 28 × 14 cm |
| Weight | 900 g (without stuff sack) |
| Shell Material | 20D ripstop nylon |
| Insulation | 3-layer aluminium foil |
| Valve | Dual-layer TPU |
Downloads
FAQ
What does R-value 11 mean?
The R-value measures resistance to heat loss. An R-value of 11 is exceptionally high and means the mat is designed to significantly reduce heat transfer to cold ground, including snow and frozen surfaces.
Is this mat suitable for winter and snow camping?
Yes. Its ASTM-tested R-value and three-layer foil insulation place it firmly in the four-season category when used as part of an appropriate sleep system.
How comfortable is it compared to standard mats?
The 10 cm thickness and air-cell baffles provide superior cushioning and weight distribution compared to thinner inflatable or foam mats.
Is it suitable for backpacking?
At around 900 g and a compact packed size, it offers an excellent balance of warmth, comfort, and portability for year-round backpacking.
Is it noisy like some foil-insulated mats?
In real-world use, rustling is minimal and significantly less noticeable than many foil-insulated sleeping mats.
Can it bottom out when sitting?
Like all inflatable mats, it is designed primarily for lying down. Compression when sitting is normal; over-inflation is not recommended.
Is there a maximum user weight?
No specific maximum weight is stated. It is designed and tested for normal adult use when used as intended.
Glossary
- R-value: A measure of thermal resistance; higher values indicate better insulation
- ASTM F3340: International standard for measuring sleeping mat thermal resistance
- Air-cell baffles: Internal chambers that distribute pressure evenly for comfort
- Ripstop nylon: Lightweight fabric reinforced to resist tearing
Manufacturer / GPSR Information
Highlander Outdoor
1 Todd Square
Livingston, EH54 5EF
Scotland, United Kingdom
Tel: +44 1506 438 438
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Website: www.highlander-outdoor.com
Specifications may change without notice as part of continuous product improvement.
Total Reviews: 0
Average Rating:
5 Star 0
4 Star 0
3 Star 0
2 Star 0
1 Star 0