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Feathered Friends Hummingbird UL 30 Sleeping Bag vs Zpacks Summer Quilt

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

Zpacks Summer Quilt is the lighter option — 324 g lighter than the Feathered Friends Hummingbird UL 30 Sleeping Bag (57% less weight). If grams matter to you, that is the one to beat.
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Spec Feathered Friends Hummingbird UL 30 Sleeping Bag Zpacks Summer Quilt
Weight 568 g · 0.568 kg · 1.25 lb 244 g · 0.244 kg · 0.54 lb
Brand Feathered Friends Zpacks
Category Sleep System Sleep System
Feathered Friends Hummingbird UL 30 Sleeping Bag
568 g

Premium 30°F sleeping bag loaded with 900-fill goose down, ultralight mummy construction ideal for three-season alpine and trail use.

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Zpacks Summer Quilt
244 g

Minimal 8.6-ounce quilt for warm weather camping. Doubles as winter sleeping bag liner.

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Feathered Friends Hummingbird UL 30 Sleeping Bag vs Zpacks Summer Quilt: which should you buy?

If saving weight is your priority, the Zpacks Summer Quilt wins — at 244 g it is 324 g (57%) lighter than the Feathered Friends Hummingbird UL 30 Sleeping Bag (568 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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