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Katabatic Gear Alsek 22F Sleeping Quilt vs NEMO Tensor Extreme Conditions

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

NEMO Tensor Extreme Conditions is the lighter option — 148 g lighter than the Katabatic Gear Alsek 22F Sleeping Quilt (23% less weight). If grams matter to you, that is the one to beat.
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Spec Katabatic Gear Alsek 22F Sleeping Quilt NEMO Tensor Extreme Conditions
Weight 630 g · 0.630 kg · 1.39 lb 482 g · 0.482 kg · 1.06 lb
Brand Katabatic Gear NEMO
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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NEMO Tensor Extreme Conditions
482 g

Four-season insulated air pad delivering an 8.5 R-value at just 17oz. Among the lightest extremely well-insulated backpacking pads. Regular mummy.

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Katabatic Gear Alsek 22F Sleeping Quilt vs NEMO Tensor Extreme Conditions: which should you buy?

If saving weight is your priority, the NEMO Tensor Extreme Conditions wins — at 482 g it is 148 g (23%) 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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