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Sea to Summit Ember Sleeping Bag vs Western Mountaineering Versalite 10°F

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

Sea to Summit Ember Sleeping Bag is the lighter option — 241 g lighter than the Western Mountaineering Versalite 10°F (28% less weight). If grams matter to you, that is the one to beat.
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Spec Sea to Summit Ember Sleeping Bag Western Mountaineering Versalite 10°F
Weight 609 g · 0.609 kg · 1.34 lb 850 g · 0.850 kg · 1.87 lb
Brand Sea to Summit Western Mountaineering
Category Sleep System Sleep System
Sea to Summit Ember Sleeping Bag
609 g

Three-season sleeping bag with 850+ UltraDry hydrophobic down, 5.1L pack size, and a rectangular zipper profile for comfort. Men's regular size.

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Western Mountaineering Versalite 10°F
850 g

850-fill down sleeping bag rated to 10°F (-12°C).

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Sea to Summit Ember Sleeping Bag vs Western Mountaineering Versalite 10°F: which should you buy?

If saving weight is your priority, the Sea to Summit Ember Sleeping Bag wins — at 609 g it is 241 g (28%) lighter than the Western Mountaineering Versalite 10°F (850 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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