Nemo Tensor Ultralight vs Therm-a-Rest NeoAir XTherm NXT

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

Nemo Tensor Ultralight is the lighter option — 90 g lighter than the Therm-a-Rest NeoAir XTherm NXT (21% less weight). If grams matter to you, that is the one to beat.

Spec	Nemo Tensor Ultralight	Therm-a-Rest NeoAir XTherm NXT
Weight	340 g · 0.340 kg · 0.75 lb	430 g · 0.430 kg · 0.95 lb
Brand	Nemo	Therm-a-Rest
Category	Sleep System	Sleep System

Nemo Tensor Ultralight

340 g

Ultralight inflatable pad with minimal noise. R-value 3.5.

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Therm-a-Rest NeoAir XTherm NXT

430 g

4-season inflatable sleeping pad with R-value 7.3.

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Nemo Tensor Ultralight vs Therm-a-Rest NeoAir XTherm NXT: which should you buy?

If saving weight is your priority, the Nemo Tensor Ultralight wins — at 340 g it is 90 g (21%) lighter than the Therm-a-Rest NeoAir XTherm NXT (430 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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