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Marmot Hydrogen 30°F vs NEMO Tensor Trail

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

NEMO Tensor Trail is the lighter option — 340 g lighter than the Marmot Hydrogen 30°F (48% less weight). If grams matter to you, that is the one to beat.
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Spec Marmot Hydrogen 30°F NEMO Tensor Trail
Weight 709 g · 0.709 kg · 1.56 lb 369 g · 0.369 kg · 0.81 lb
Brand Marmot NEMO
Category Sleep System Sleep System
Marmot Hydrogen 30°F
709 g

Ultralight 800-fill down sleeping bag rated to 30°F.

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NEMO Tensor Trail
369 g

Ultralight insulated sleeping pad with Spaceframe baffles. R-Value of 2.8 for 3-season use.

Full details →

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Marmot Hydrogen 30°F vs NEMO Tensor Trail: which should you buy?

If saving weight is your priority, the NEMO Tensor Trail wins — at 369 g it is 340 g (48%) lighter than the Marmot Hydrogen 30°F (709 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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