Katabatic Gear Alsek 22°F vs Therm-a-Rest NeoAir XLite NXT

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

Therm-a-Rest NeoAir XLite NXT is the lighter option — 100 g lighter than the Katabatic Gear Alsek 22°F (22% less weight). If grams matter to you, that is the one to beat.

Spec	Katabatic Gear Alsek 22°F	Therm-a-Rest NeoAir XLite NXT
Weight	454 g · 0.454 kg · 1.00 lb	354 g · 0.354 kg · 0.78 lb
Brand	Katabatic Gear	Therm-a-Rest
Category	Sleep System	Sleep System

Katabatic Gear Alsek 22°F

454 g

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

Full details →

Therm-a-Rest NeoAir XLite NXT

354 g

Ultralight inflatable sleeping pad with R-value 4.5.

Full details →

Katabatic Gear Alsek 22°F vs Therm-a-Rest NeoAir XLite NXT: which should you buy?

If saving weight is your priority, the Therm-a-Rest NeoAir XLite NXT wins — at 354 g it is 100 g (22%) 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.

More sleep system comparisons

Katabatic Gear Alsek 22°F vs NEMO Equipment Tensor Elite Sleeping Pad Katabatic Gear Alsek 22°F vs Therm-a-Rest NeoAir UberLite Katabatic Gear Alsek 22°F vs NEMO Tensor Elite Ultralight Insulated Katabatic Gear Alsek 22°F vs Zpacks Solo Quilt 20F Katabatic Gear Alsek 22°F vs Nemo Tensor Ultralight Katabatic Gear Alsek 22°F vs Zpacks Classic Sleeping Bag 20F