Insulated Air Mattress
Sea to Summit Ether Light XT Insulated Air Mattress

$180, 17.3 oz. (regular)

Sizes: five unisex and two women’s-specific sizes

What makes us sleep well in the backcountry? I contemplated that question after numerous, very peaceful nights of deep slumber on a river trip and a separate backpacking trip last spring, both in southern Utah. Certainly, the deep quiet and being outdoors matter. But I must give a nod to the comfort of Sea to Summit’s Ether Light XT, my bed for all those nights—an air mat with an interesting back story of the technology behind my blissful nights on the ground.

I tested the regular Ether Light XT for five nights beside the gently whispering Green River on a rafting and kayaking trip through Desolation and Gray canyons in June and a five-day backpacking trip in The Maze District of Canyonlands National Park in March.

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Sea to Summit Ether Light XT Insulated Air Mattress
” data-medium-file=”″ data-large-file=”″ width=”900″ height=”600″ src=”×683.jpg?resize=900%2C600&ssl=1″ alt=”Sea to Summit Ether Light XT Insulated Air Mattress” class=”wp-image-46684″ srcset=” 1024w, 300w, 768w, 150w, 1200w” sizes=”(max-width: 900px) 100vw, 900px” data-recalc-dims=”1″ />Sea to Summit Ether Light XT Insulated Air Mattress

A fat four inches/10cm thick, the Ether Light series of air mats incorporates the brand’s Air Sprung Cells, made with a matrix of interconnected air chambers that individually conform to your body. Mimicking a pocket-spring mattress in the way they distribute your body weight and prevent hipbones or shoulders from bottoming out on the hard ground, those cells create a sleeping experience that feels more like a bed than lying atop a big, flat balloon.

The Air Sprung Cells also use internal TPU fabric loops to bind the top and bottom layers of shell fabric, enabling more spacing between cells and more air pockets, all of which translates to more cushioning and less weight. At 21.5 inches/55cm wideat the shoulders and 16.5 inches/42cm at the foot, the regular Ether Light XT provides a bit more width
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