Katabatic Gear Sawatch 15F Quilt vs Sea to Summit Spark Pro Down Sleeping Bag
Weight and specs compared for 2026 — and which one to choose.
Premium 900-fill goose down sleeping quilt rated to 15°F. Features perimeter strapping system and variable loft adjustment for versatile temperature regulation.
Full details →Ultralight down sleeping bag at 765g with 900+ fillpower RDS-certified down, 15°F rating and Free-Flow Zip system for versatility.
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Katabatic Gear Sawatch 15F Quilt vs Sea to Summit Spark Pro Down Sleeping Bag: which should you buy?
If saving weight is your priority, the Katabatic Gear Sawatch 15F Quilt wins — at 700 g it is 65 g (8%) lighter than the Sea to Summit Spark Pro Down Sleeping Bag (765 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.