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Sea to Summit Spark 30 Sleeping Bag vs Zenbivy Ultralight Bed Quilt 25°F

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

Both weigh the same at 482 g, so choose on features, price and fit.
Spec Sea to Summit Spark 30 Sleeping Bag Zenbivy Ultralight Bed Quilt 25°F
Weight 482 g · 0.482 kg · 1.06 lb 482 g · 0.482 kg · 1.06 lb
Brand Sea to Summit Zenbivy
Category Sleep System Sleep System
Sea to Summit Spark 30 Sleeping Bag
482 g

Ultralight 30°F mummy bag filled with 850+ loft down. Differential cut and ripstop shell deliver excellent warmth-to-weight ratio.

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Zenbivy Ultralight Bed Quilt 25°F
482 g

Ultralight down quilt with 850FP duck down insulation, 482g weight for regular size with Pertex shell fabric.

Full details →

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Sea to Summit Spark 30 Sleeping Bag vs Zenbivy Ultralight Bed Quilt 25°F: which should you buy?

On weight these two are identical (482 g), so your decision comes down to features, fit and price. Check the full details and current price for each above.

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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