Katabatic Gear Alsek 22°F vs NEMO Tensor Elite Ultralight Insulated

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

NEMO Tensor Elite Ultralight Insulated is the lighter option — 156 g lighter than the Katabatic Gear Alsek 22°F (34% less weight). If grams matter to you, that is the one to beat.

Spec	Katabatic Gear Alsek 22°F	NEMO Tensor Elite Ultralight Insulated
Weight	454 g · 0.454 kg · 1.00 lb	298 g · 0.298 kg · 0.66 lb
Brand	Katabatic Gear	NEMO
Category	Sleep System	Sleep System

Katabatic Gear Alsek 22°F

454 g

Premium 850-fill down sleeping quilt rated to 22°F.

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NEMO Tensor Elite Ultralight Insulated

298 g

Lightest insulated inflatable sleeping pad on the market. Trapezoidal baffles eliminate cold spots; inflates in under 60 seconds with pump sack.

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Katabatic Gear Alsek 22°F vs NEMO Tensor Elite Ultralight Insulated: which should you buy?

If saving weight is your priority, the NEMO Tensor Elite Ultralight Insulated wins — at 298 g it is 156 g (34%) lighter than the Katabatic Gear Alsek 22°F (454 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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