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Marmot Hydrogen 30°F vs Nemo Equipment Tensor All-Season

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

Nemo Equipment Tensor All-Season is the lighter option — 309 g lighter than the Marmot Hydrogen 30°F (44% less weight). If grams matter to you, that is the one to beat.
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Spec Marmot Hydrogen 30°F Nemo Equipment Tensor All-Season
Weight 709 g · 0.709 kg · 1.56 lb 400 g · 0.400 kg · 0.88 lb
Brand Marmot Nemo Equipment
Category Sleep System Sleep System
Marmot Hydrogen 30°F
709 g

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

Full details →
Nemo Equipment Tensor All-Season
400 g

All-season insulated pad at 14.1oz with R-value 5.4. Three-inch loft.

Full details →

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Marmot Hydrogen 30°F vs Nemo Equipment Tensor All-Season: which should you buy?

If saving weight is your priority, the Nemo Equipment Tensor All-Season wins — at 400 g it is 309 g (44%) 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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