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Cumulus Aerial 250 vs NEMO Fillo Elite

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

NEMO Fillo Elite is the lighter option — 303 g lighter than the Cumulus Aerial 250 (79% less weight). If grams matter to you, that is the one to beat.
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Spec Cumulus Aerial 250 NEMO Fillo Elite
Weight 385 g · 0.385 kg · 0.85 lb 82 g · 0.082 kg · 0.18 lb
Brand Cumulus NEMO
Category Sleep System Sleep System
Cumulus Aerial 250
385 g

Ultralight down sleeping bag with 900 FP goose down, single-layer design with no zipper, perfect for thru-hiking and backpacking.

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NEMO Fillo Elite
82 g

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

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Cumulus Aerial 250 vs NEMO Fillo Elite: which should you buy?

If saving weight is your priority, the NEMO Fillo Elite wins — at 82 g it is 303 g (79%) lighter than the Cumulus Aerial 250 (385 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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