Therm-A-Rest Vesper UL 20 Down Quilt
*GET 50% OFF A THERM-A-REST AIR HEAD DOWN PILLOW WHEN YOU BUY THIS QUILT*
ULTRALIGHT QUILT FOR A MORE COMFORTABLE NIGHT AT CAMP
For those who prioritise essentials, the 550g Therm-A-Rest Vesper UL 20 Quilt is the perfect solution for a lighter pack and better nights at camp.
Boasting exceptional packability and a featherweight design, the Therm-A-Rest Vesper UL 20 Quilt (20F/-6C) delivers no-frills comfort. Its thermally-efficient box baffled construction maximises warmth, making it an ultralight, high-performance option.
Crafted with premium materials and features like the SynergyLink™ Connector, a snap neck closure, perimeter side baffles, and an insulated footbox, the Therm-A-Rest Vesper UL 20 Quilt ensures warmth and comfort in the wild.
Compared to traditional sleeping bags, this quilt saves weight and packs smaller by utilising the warmth from your insulated mattress. A storage sack and compression stuff sack are included for convenience.
Explore our full range of Quilts here.
KEY FEATURES OF THE THERMAREST VESPER UL 20 QUILT
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900-fill Nikwax Hydrophobic Down stays drier and maintains loft longer
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Lightweight materials offer exceptional packability
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Box baffled construction maximises loft and reduces cold spots
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SynergyLink Connectors secure the quilt to your mattress for better warmth
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Side baffles, snap neck and insulated footbox block out drafts
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Certified to the Responsible Down Standard for humane sourcing
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What's Included
A storage sack and compression stuff sack.
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size + Specifications
Regular
Weight - 540g
Width - 147cm
Length - 191cm
Fits - 183cm
Girth, Shoulder - 147cm
Girth, Hip - 130cm
Girth, Foot Box - 94cm
Packed Dimensions - 14cm x 20cm
EN Comfort - 0 C
EN Limit - -6 C
Recommended Comfort - 0 C
Recommended Limit - -6 C
Fill - 900 Fill Goose Nikwax Hydrophobic Down RDS
Shell Fabric - 10D Nylon RipStop with DWR
Inner Fabric - 10D Nylon RipStop
Zip Side - Left
Long
Weight - 610g
Width - 155cm
Length - 201cm
Fits - 198cm
Girth, Shoulder - 155cm
Girth, Hip - 137cm
Girth, Foot Box - 102cm
Packed Dimensions - 14cm x 20cm
EN Comfort - 0 C
EN Limit - -6 C
Recommended Comfort - 0 C
Recommended Limit - -6 C
Fill - 900 Fill Goose Nikwax Hydrophobic Down RDS
Shell Fabric - 10D Nylon RipStop with DWR
Inner Fabric - 10D Nylon RipStop
Zip Side - Left -
what we think
Our resident gear expert Dan has been using the Thermarest Vesper 20 quilt for over five years on regular wild camping trips throughout summer and winter, as well as on long-distance hikes like the Cleveland Way and the Cumbria Way. He appreciates the quilt’s excellent warmth-to-weight ratio, which comes from the high-quality 900 Fill Goose Nikwax Hydrophobic Down RDS. This down not only provides superior insulation but also resists moisture thanks to the hydrophobic treatment, helping it stay warm and dry in damp conditions. The responsible sourcing certified by RDS is an added reassurance for those who care about ethical gear.
Comfort-wise, the quilt offers plenty of room for movement while maintaining heat efficiently. Its durable 10D Nylon Ripstop shell and lining are lightweight yet strong enough to handle rough outdoor use. Over the years, Dan has found it reliable and comfortable across a wide range of weather, making it a versatile choice for UK wild camping and multi-day hiking adventures. While some may prefer a more insulated option for colder extremes, this quilt strikes a solid balance for most conditions encountered on extended trips. -
reviews
"At first I thought “how is this thing gonna be warm down to -6?” It’s incredibly light in the pack, compressing down to less than half the size of the sleeping bag it replaced. The first night in it I knew I made the right choice. My sleep system just lost almost 4 lbs with this and that new pad I bought. Cheers Thermarest for looking out for the old guys who got tired of packing all that weight around"
"Super light, packable, and easy to use. I regularly use it until around 0 C and when combined with some warm layers it is great. I definitely prefer the quilt to my sleeping bag."
"This quilt kept me warm on a 30 degree night in the snow under a tarp. It's very light, and packs incredibly small. Attaches to your pad and doesn't let in a draft. I was amazed at how warm my feet stayed in the toe box." -
Weight
540 g
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Season Rating
3-Season
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Comfort Limit
-6°C
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"The Valley and Peak promise is built on three pillars: thoughtfully curated gear, exceptional customer service, and a genuine love for the outdoors. As an independent, family-run business, we carefully select products from a wide variety of cottage gear brands and trusted names, ensuring that each item is rigorously tested and loved by our team. Our customer service is a cornerstone of our brand, offering personalised support to help you choose and care for your gear with confidence"
Jim De'Ath, Managing Director