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Hammock Gear Economy Burrow 20 vs Sea to Summit Spark SP I

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

Sea to Summit Spark SP I is the lighter option — 334 g lighter than the Hammock Gear Economy Burrow 20 (46% less weight). If grams matter to you, that is the one to beat.
Spec Hammock Gear Economy Burrow 20 Sea to Summit Spark SP I
Weight 731 g · 0.731 kg · 1.61 lb 397 g · 0.397 kg · 0.88 lb
Brand Hammock Gear Sea to Summit
Category Sleep System Sleep System
Hammock Gear Economy Burrow 20
731 g

Budget-friendly 20F backpacking quilt with 13.7oz of 850 fill duck down and 20D shell and liner. Includes ground attachment kit and zippered foot box.

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Sea to Summit Spark SP I
397 g

Ultralight 850-fill down sleeping bag rated to 25°C.

Full details →

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Hammock Gear Economy Burrow 20 vs Sea to Summit Spark SP I: which should you buy?

If saving weight is your priority, the Sea to Summit Spark SP I wins — at 397 g it is 334 g (46%) lighter than the Hammock Gear Economy Burrow 20 (731 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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