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Katabatic Gear Alsek 22F Sleeping Quilt vs Western Mountaineering AstraLite

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

Western Mountaineering AstraLite is the lighter option — 134 g lighter than the Katabatic Gear Alsek 22F Sleeping Quilt (21% less weight). If grams matter to you, that is the one to beat.
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Spec Katabatic Gear Alsek 22F Sleeping Quilt Western Mountaineering AstraLite
Weight 630 g · 0.630 kg · 1.39 lb 496 g · 0.496 kg · 1.09 lb
Brand Katabatic Gear Western Mountaineering
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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Western Mountaineering AstraLite
496 g

Ultralight 3-season sleeping bag with 850fp down and 12D shell. Designed for fast-and-light alpine pursuits and long trail journeys.

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Katabatic Gear Alsek 22F Sleeping Quilt vs Western Mountaineering AstraLite: which should you buy?

If saving weight is your priority, the Western Mountaineering AstraLite wins — at 496 g it is 134 g (21%) 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.

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