Katabatic Gear Sawatch 15F Quilt vs Sea to Summit Spark SP III

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

Katabatic Gear Sawatch 15F Quilt is the lighter option — 9 g lighter than the Sea to Summit Spark SP III (1% less weight). If grams matter to you, that is the one to beat.

Spec	Katabatic Gear Sawatch 15F Quilt	Sea to Summit Spark SP III
Weight	700 g · 0.700 kg · 1.54 lb	709 g · 0.709 kg · 1.56 lb
Brand	Katabatic Gear	Sea to Summit
Category	Sleep System	Sleep System

Katabatic Gear Sawatch 15F Quilt

700 g

Premium 900-fill goose down sleeping quilt rated to 15°F. Features perimeter strapping system and variable loft adjustment for versatile temperature regulation.

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Sea to Summit Spark SP III

709 g

850-fill down sleeping bag rated to 0°C / 32°F.

Full details →

Katabatic Gear Sawatch 15F Quilt vs Sea to Summit Spark SP III: which should you buy?

If saving weight is your priority, the Katabatic Gear Sawatch 15F Quilt wins — at 700 g it is 9 g (1%) lighter than the Sea to Summit Spark SP III (709 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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