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Nemo Fillo Elite Wide UL vs Western Mountaineering AlpinLite 20

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

Nemo Fillo Elite Wide UL is the lighter option — 760 g lighter than the Western Mountaineering AlpinLite 20 (86% less weight). If grams matter to you, that is the one to beat.
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Spec Nemo Fillo Elite Wide UL Western Mountaineering AlpinLite 20
Weight 119 g · 0.119 kg · 0.26 lb 879 g · 0.879 kg · 1.94 lb
Brand Nemo Western Mountaineering
Category Sleep System Sleep System
Nemo Fillo Elite Wide UL
119 g

Hybrid inflatable pillow with foam padding. Lightweight comfort at 4.2 oz for multi-day hikes.

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Western Mountaineering AlpinLite 20
879 g

Roomy 20F mummy bag with 850+ goose down and continuous baffles, balancing warmth, comfort and low weight.

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Nemo Fillo Elite Wide UL vs Western Mountaineering AlpinLite 20: which should you buy?

If saving weight is your priority, the Nemo Fillo Elite Wide UL wins — at 119 g it is 760 g (86%) lighter than the Western Mountaineering AlpinLite 20 (879 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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