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Exped Ultra 6.5R vs Western Mountaineering Versalite 10°F

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

Exped Ultra 6.5R is the lighter option — 490 g lighter than the Western Mountaineering Versalite 10°F (58% less weight). If grams matter to you, that is the one to beat.
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Spec Exped Ultra 6.5R Western Mountaineering Versalite 10°F
Weight 360 g · 0.360 kg · 0.79 lb 850 g · 0.850 kg · 1.87 lb
Brand Exped Western Mountaineering
Category Sleep System Sleep System
Exped Ultra 6.5R
360 g

All-season insulated air mat with R-6.9 warmth, 9cm thickness and quiet 20D recycled face fabric; mummy regular.

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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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Exped Ultra 6.5R vs Western Mountaineering Versalite 10°F: which should you buy?

If saving weight is your priority, the Exped Ultra 6.5R wins — at 360 g it is 490 g (58%) 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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