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Ultralight Air Sleeping Mat

More comfort, minimal weight

$89.95 – $129.95

Size Guide

Sleeping Bag Temperature Ratings Explained

The EN Rating scale is a scientific test to determine the warmth of a sleeping bag. The test produces a Lower rating (for male sleepers) and a Comfort rating (for female sleepers). Both are listed in the features table on the product page.

A unisex sleeping bag with a Lower limit of 23ºF means a man should be comfortable down to air temperatures of 23ºF. The same bag will also have a Comfort limit, in the realm of 32°F, so a woman would be comfortable down to an air temperature of 32ºF. These ratings require a sleeping mat with an R-Value appropriate for expected ground temperatures – without this, the sleeping bag itself is unlikely to keep the sleeper warm enough.

A variety of factors impact sleeping bag warmth - the above temperatures are merely guidelines, not guarantees. It’s important to think of a sleeping bag, an appropriately insulating sleeping pad and a liner as a sleep system. For example - if you plan on sleeping in nighttime air temperatures of 27ºF / -3°C, choose a bag with a gender-appropriate rating of 23°F / -5°C, plus a sleeping mat with an R-Value of 2.5 to 3, and consider a Reactor thermal liner.


The Ultralight Air Mat was awarded Gear of the Year by National Geographic Adventure and earned Best New Gear from Gear Institute in 2014 and there is little wonder why. This is the durable, compact, lightweight sleeping mat for gram counters who don't want to sacrifice comfort for weight. Using Air Sprung Cell™ technology with a single layer of medium resolution cells, this offers a minimal packed size and weight. Ideal for adventure racers, lightweight backpack or bikepacking adventures or anyone looking for Ultralight comfort.

Read about the care and use of your Sea to Summit Air Mat HERE



Regular: 13.9 oz ≈ Lighter than a roll of paper towels

Packed Size Comparison

Burrito with double meat and guac.


Summer Mat: Perfect for any summer adventure not at altitude.


The strongest face fabric and laminate available in a backpacking air mat. It’s a statement of tough love – we make things tough, so you will love them


  • R-Value of 0.7 is designed for warmer-weather use. Click here to learn about the new ASTM R-Value test standard.
  • Multi-function valve for fast and easy inflation, deflation and fine tuning of air pressure.
  • Liquid extrusion TPU lamination bonds to the mat face fabric more consistently than a film, virtually eliminating delamination issues common in other mats
  • An anti-microbial treatment is added to the TPU to prevent issues caused by warm, moist air trapped inside the mat.
  • Comes with a quality stuff sack which doubles as a pump, a repair kit containing six self-adhesive patches for repairing punctures in the field, and a spare silicone one-way valve insert.

      Technical Features

      Single Layer Air Sprung Cells™

      Air Sprung Cells™ are the core technology used in Sea to Summit Air Mats and are the reason you will sleep more comfortably on a Sea to Summit mat than on a conventional air pad. Inspired by the hundreds of springs found in a modern pocket sprung mattress, the hundreds of small interconnected chambers (called Air Sprung Cells™) perfectly support your weight and conform to your body contours.

      The Ultra Light range has a single layer of medium resolution cells to give you the lightest and smallest packed volume mat without compromising on Sea to Summit's Air Sprung Cell comfort.

      Integrated AirStream™

      The Airstream™ Pumpsack is Sea to Summit's big volume mattress pump which we've now integrated into the stuff sack of every Air Sprung Cell™ mat. The clever design opens at one end to stow the air mat and the other end unfolds to become the built-in pump.

      The Airstream™ Pumpsack can be inflated with a single breath and takes just two or three cycles to fill our mats. Not only is it faster than inflation by mouth, but there is minimal breath condensation entering the mat and it eliminates dizziness from blowing the mat up directly by mouth.

      The Airstream™ Pumpsack is also compatible with Sea to Summit's smaller multifunction valve, which is now featured on the updated Aeros pillow range, along with the Air Seats.


      Our air mats and expander liners are permanently treated with a CA-16 silver treatment from Thompson Research Associates. This is mixed into the TPU before the extrusion lamination to ensure a permanent germ killing effect inside every Air Sprung Cell™ mat. The treatment is applied to the yarn before weaving into a fabric to ensure a permanent application.

      40D Nylon Face Fabric

      We developed the high tensile yarn, high thread count 40D ripstop Nylon face fabric for our Air Sprung Cell™ sleeping mats to hit the right balance between weight and durability. On the inside, we apply a bright white TPU to make the fabric airtight and weldable - it also contains a permanent antimicrobial treatment to ensure mold will not form on the inside of the mat. These characteristics combine to form the strongest, most durable air mat fabric available.


      On the outside, we apply a thin proprietary coating to reduce the slipperiness of the surface, increase water resistance, and aid puncture repair with the included self-adhesive patches.

      Tech Specs

      Product Details

      Best Use
      Ultralight Backpacking, Bike Touring
      Comes With
      Airstream Pumpsack / Stuff Sack and a mat repair kit
      40D Nylon Face Fabric
      Season Rating
      Summer Air Mat
      Extrusion TPU Lamination to reduce delamination
      X SMALL
      50 in x 21.5 in / 128 x 55 cm
      2.5 x 6.5 in / 6.5 x 17 cm
      2 in / 5 cm
      10.4 oz / 296 g
      66 in x 21.5 in / 168 x 55 cm
      3 x 6.5 in / 7.5 x 17 cm
      2 in / 5 cm
      12.1 oz / 345 g
      72 in x 21.5 in / 184 x 55 cm
      3 x 6.5 in / 7.5 x 17 cm
      2 in / 5 cm
      13.9 oz / 395 g
      78 in x 25 in / 198 x 64 cm
      3 x 8 in / 7.5 x 20 cm
      2 in / 5 cm
      17.4 oz / 495 g

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