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Katabatic Gear Alsek 22F Sleeping Quilt vs Sea to Summit Ether Light XT

Weight and specs compared for 2026 — and which one to choose.

Sea to Summit Ether Light XT is the lighter option — 195 g lighter than the Katabatic Gear Alsek 22F Sleeping Quilt (31% less weight). If grams matter to you, that is the one to beat.
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Spec Katabatic Gear Alsek 22F Sleeping Quilt Sea to Summit Ether Light XT
Weight 630 g · 0.630 kg · 1.39 lb 435 g · 0.435 kg · 0.96 lb
Brand Katabatic Gear Sea to Summit
Category Sleep System Sleep System
Katabatic Gear Alsek 22F Sleeping Quilt
630 g

3-season ultralight quilt at 22.2oz. 900 fill ExpedDRY goose down with Pertex Quantum Ripstop shell.

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Sea to Summit Ether Light XT
435 g

Ultralight air sleeping pad with 3D construction for comfort.

Full details →

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Katabatic Gear Alsek 22F Sleeping Quilt vs Sea to Summit Ether Light XT: which should you buy?

If saving weight is your priority, the Sea to Summit Ether Light XT wins — at 435 g it is 195 g (31%) lighter than the Katabatic Gear Alsek 22F Sleeping Quilt (630 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.

See where both rank against everything else in this category on the lightest sleep system page, or browse the full gear weight database.

More sleep system comparisons