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NEMO Fillo Elite vs Western Mountaineering Ultralite 20°F

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

NEMO Fillo Elite is the lighter option — 598 g lighter than the Western Mountaineering Ultralite 20°F (88% less weight). If grams matter to you, that is the one to beat.
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Spec NEMO Fillo Elite Western Mountaineering Ultralite 20°F
Weight 82 g · 0.082 kg · 0.18 lb 680 g · 0.680 kg · 1.50 lb
Brand NEMO Western Mountaineering
Category Sleep System Sleep System
NEMO Fillo Elite
82 g

Ultralight foam-inflatable hybrid pillow. Weighs under 3 ounces for comfortable camp sleeping.

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Western Mountaineering Ultralite 20°F
680 g

Premium 850-fill down sleeping bag rated to 20°F (-7°C).

Full details →

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NEMO Fillo Elite vs Western Mountaineering Ultralite 20°F: which should you buy?

If saving weight is your priority, the NEMO Fillo Elite wins — at 82 g it is 598 g (88%) lighter than the Western Mountaineering Ultralite 20°F (680 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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