Therm-a-Rest
Vesper Quilt 32F
Manufacturer list price (MSRP)
$439.95
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Overview
The Therm-a-Rest Vesper is an ultralight down backpacking quilt with 900 fill power Nikwax Hydrophobic Down, box-baffle construction, an insulated footbox, and a SynergyLink connector to strap it to a sleeping pad. The 32-degree model is a two-to-three-season quilt for weight-focused sleepers.
Specs
- Brand
- Therm-a-Rest
- Weight
- 540 g · 19.0 oz
- Temp rating
- 32°F / 0°C (manufacturer rating, not independently ISO 23537 / EN 13537 tested)
- Fill
- 900 fill power Nikwax Hydrophobic Down (RDS certified)
- Shape
- Mummy
- Fill Material
- Down
- Fill Material Type
- Down
- Item Weight
- 1.1 pounds
- Material
- Nylon
- Seasons
- 3 Seasons
- Shell material
- Nylon
- Fill Material — Source: retailer · checked 2026-08-16
- Material Primary — Source: retailer · checked 2026-08-16
- Season Rating — Source: retailer · checked 2026-08-16
- Shape — Source: retailer · checked 2026-08-16
- Shell Material — Source: retailer · checked 2026-08-16
- Temperature Rating F — Source: retailer · checked 2026-08-16
- Weight G — Source: retailer · checked 2026-08-16
Weight vs. category
38% lighter than the category average.
How it measures up
Against every one of the sleeping bags & quilts in the RidgeNote register with a published figure. Manufacturer-listed; sources and dates are on this page.
- Weight
- 1.19 lb (540 g)
- Lighter than 67% of 24 weighed · #8 lightest
- -42% vs the median 2.04 lb
- Price
- $439.95
- Cheaper than 28% of 29 priced · #21 cheapest
- +21% vs the median $364.00 · $23.10/oz (median $8.20/oz)
- Temperature rating
- 32 °F
- Lower than 11% of 47 rated
- median 20 °F
The lightest of the sleeping bags & quilts on record is Gossamer Gear Cumulus x Gossamer Gear Aerial 330 Sleeping Bag at 11.6 oz — 211 g less and $40.95 less.
The cheapest is Sea to Summit Boab Synthetic Sleeping Bag at $124.00 — $315.95 less and 770 g heavier.
RidgeNote verdict
Similar — lighter or cheaper
Compared with
Side by side on weight, list price and cost per ounce.
Related reading
What Is the Lightest 20 Degree Sleeping Bag in 2026
See how NEMO, Kelty, and Sea to Summit 20 degree bags compare by weight, price per ounce, and rank across the current shelf for 2026.
What's the Lightest Ultralight Sleeping Bag Worth Buying in 2026?
RidgeNote ranks 24 ultralight sleeping bags and quilts by published weight, from 11.6 oz to 72.0 oz, so you know what going lighter costs in ounces.
What Is the Lightest 30 Degree Sleeping Bag in 2026?
See which 30 degree sleeping bags and quilts weigh least, ranked by grams, ounces, and price per ounce across the full shelf.
Manufacturer list price (MSRP)
$439.95