Highlander Nap-Pak Arctic R11 Mummy Lite Inflatable Sleeping Mat

The Highlander Nap-Pak Arctic R11 Mummy Lite is the lighter, more packable version of the Arctic R11, delivering the same independently tested R-value of 11 (ASTM F3340) in a tapered mummy shape that cuts the weight to 600g and the packed size to 24 x 10cm. For backpackers, bikepackers and anyone carrying every gram, that difference matters without any compromise on cold-weather insulation.

The 10cm air-cell baffle construction keeps you well clear of frozen ground and distributes weight evenly for a comfortable sleeping surface. A three-layer aluminium foil system delivers the warmth, the 20D ripstop nylon shell keeps weight down without sacrificing durability, and the dual-layer TPU valve allows precise inflation and quick deflation. Highlander's 282 Year Guarantee backs the mat against faults in materials and workmanship for its full lifetime. For those who want the wider rectangular version, see the Nap-Pak Arctic R11 Inflatable Sleeping Mat.

Key Features

• R-Value of 11, ASTM F3340 Tested - Same independently verified four-season insulation as the full-size Arctic R11
• Mummy Shape at Just 600g - Tapered profile trims weight and bulk without reducing insulation performance
• Packs to 24 x 10cm - Among the most compact high-R-value mats available
• 10cm Air-Cell Baffle Construction - Comfortable separation from cold and frozen ground
• Three-Layer Aluminium Foil Insulation - Maximises warmth-to-weight ratio across the mat
• 20D Ripstop Nylon Shell - Durable yet lightweight construction for repeated outdoor use
• Dual-Layer TPU Valve - Controlled inflation, precise firmness adjustment and rapid deflation
• Stuff Sack Included - Keeps the mat compact and protected when packed
• 282 Year Guarantee - Highlander's lifetime warranty against faults in materials and workmanship

Ideal For

• Backpacking and Bikepacking - 600g and 24 x 10cm packed size suit weight-conscious packing for multi-day trips
• Winter and Cold-Weather Camping - R11 insulation handles frozen ground and snow conditions as part of an appropriate sleep system
• Smaller Body Types and Women - Mummy shape sized for a closer fit that reduces dead air and aids warmth retention
• Year-Round Outdoor Use - High R-value removes the need to carry different mats for different seasons

Technical Specifications

Warranty

This product is covered by Highlander's 282 Year Guarantee. View full warranty terms and exclusions.