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Therm-a-Rest Vesper 20F vs Zpacks Solo Quilt 20F

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

No winner on weight yet. The recorded weights have not both been verified on the same basis. Size, included parts and single-item versus pair weights can differ. Check the linked sources before choosing a replacement.

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Spec Therm-a-Rest Vesper 20F Zpacks Solo Quilt 20F
Weight 550 g · 0.550 kg · 1.21 lb
size Regular
 520 g · 0.520 kg · 1.15 lb
size Medium (fits up to 6'0"), standard width, 20F
Brand Therm-a-Rest Zpacks
Category Sleep System Sleep System
Therm-a-Rest Vesper 20F
550 g

Ultralight quilt with 900-fill hydrophobic Nikwax Treated Down. Rated 20°F with neck baffle and footbox snap. Among lightest mainstream quilts.

See it in your base weight → Full details →
Zpacks Solo Quilt 20F
520 g

900-fill power down quilt with 20F (-7C) temperature rating in ultralight DCF shell. Pad attachment straps and adjustable snap footbox included.

See it in your base weight → Full details →

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Therm-a-Rest Vesper 20F vs Zpacks Solo Quilt 20F: which should you buy?

The listed weights alone are not enough to choose between these products. Confirm the size, included parts and weight basis against each source; choose equipment for the function and fit you need.

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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