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Cumulus Neo Quilt 300 vs Therm-a-Rest Vesper 32F Down Quilt

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

Cumulus Neo Quilt 300 is the lighter option — 95 g lighter than the Therm-a-Rest Vesper 32F Down Quilt (17% less weight). If grams matter to you, that is the one to beat.
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Spec Cumulus Neo Quilt 300 Therm-a-Rest Vesper 32F Down Quilt
Weight 455 g · 0.455 kg · 1.00 lb 550 g · 0.550 kg · 1.21 lb
Brand Cumulus Therm-a-Rest
Category Sleep System Sleep System
Cumulus Neo Quilt 300
455 g

Ultralight 3-season quilt with 300g 900-fill goose down and closed footbox. Comfort rating -3°C. Features two-part strap system and adjustable draft collar for...

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Therm-a-Rest Vesper 32F Down Quilt
550 g

Premium ultralight quilt with 900-fill hydrophobic down. Rated 32F/0C. At 550g it is the lightest mainstream quilt in its temperature class.

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Cumulus Neo Quilt 300 vs Therm-a-Rest Vesper 32F Down Quilt: which should you buy?

If saving weight is your priority, the Cumulus Neo Quilt 300 wins — at 455 g it is 95 g (17%) lighter than the Therm-a-Rest Vesper 32F Down Quilt (550 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.

More sleep system comparisons