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Nemo Fillo Elite Wide UL vs Nunatak Sastrugi Sleeping Bag (22°F)

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

Nemo Fillo Elite Wide UL is the lighter option — 495 g lighter than the Nunatak Sastrugi Sleeping Bag (22°F) (81% less weight). If grams matter to you, that is the one to beat.
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Spec Nemo Fillo Elite Wide UL Nunatak Sastrugi Sleeping Bag (22°F)
Weight 119 g · 0.119 kg · 0.26 lb 614 g · 0.614 kg · 1.35 lb
Brand Nemo Nunatak
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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Nunatak Sastrugi Sleeping Bag (22°F)
614 g

Custom ultralight sleeping bag with 900-fill goose down. 614g for 22-degree regular-width medium-length configuration. Made to order with customization options

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Nemo Fillo Elite Wide UL vs Nunatak Sastrugi Sleeping Bag (22°F): which should you buy?

If saving weight is your priority, the Nemo Fillo Elite Wide UL wins — at 119 g it is 495 g (81%) lighter than the Nunatak Sastrugi Sleeping Bag (22°F) (614 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.

More sleep system comparisons