Therm-a-Rest Vesper 20 UL Quilt - Moosejaw
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Therm-a-Rest Vesper 20 UL Quilt

Therm-a-Rest Vesper 20 UL Quilt is rated 4.7 out of 5 by 64.
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4.7 Star Rating
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The Therm-a-Rest Vesper 20 UL Quilt is an insulated quilt for backpacking lighter. Capable of keeping you warm down to 20°F, but comfort rated down to 32°F, the 900 fill Nikwax Hydrophobic Down™ blanket is right for warm shoulder seasons and cool summer nights. Snuggle with this over top of you, just like at home and it will help retain body heat.

Product Description

Item No.   10402466

The Therm-a-Rest Vesper 20 UL Quilt is an insulated quilt for backpacking lighter. Capable of keeping you warm down to 20°F, but comfort rated down to 32°F, the 900 fill Nikwax Hydrophobic Down™ blanket is right for warm shoulder seasons and cool summer nights. Snuggle with this over top of you, just like at home and it will help retain body heat.

FEATURES of the Therm-a-Rest Vesper 20 UL Quilt

  • 900 fill Nikwax Hydrophobic Down™ stays drier and maintains loft 60 times longer than untreated down
  • Lightweight materials and precise design pack into a minimalist compression sack
  • Box baffled construction uses mesh walls to maximize loft and minimize cold spots
  • Nylon shell with DWR treatment for added water resistance
  • ThermaCapture™ lining traps radiant body heat and retain warmth without adding bulk or weight
  • SynergyLink™ connector allows you to integrate the quilt with a mattress for optimal efficiency and comfort, and it is removable for versatility
  • Perimeter side baffles and insulated footbox eliminate unwanted cold drafts
  • Regular size weighs in at 19 ounces
  • Offers an temperature limit of 20°
  • A compression sack and storage sack are included

Fabric Details

  • Shell: 10D Nylon with DWR
  • Lining: 10D Nylon with ThermaCapture™
  • Fill: 900 Fill Goose Nikwax Hydrophobic Down™

Product Specifications

Foot Circumference (Long): 40 in.
Primary Shell Fabric: Nylon
Length (Long): 78 in.
Shoulder Circumference (Regular): 58 in.
Disclaimer: We only ship this brand to US Addresses.
Shoulder Circumference (Long): 61 in.
Length (Regular): 72 in.
Bag Weight (Long): 21 oz
Packed Dimensions: 5.5 x 8 in.
Certification(s): RDS (Responsible Down Standard)
Weight: 19 oz
Foot Circumference (Regular): 37 in.
Bag Weight (Regular): 19 oz
Minimum Temperature Rating: 20 Degrees Fahrenheit
Fill Weight (Regular): 12.5 oz.
Hip Circumference (Regular): 51 in.
Sleeping Bag Lining: 10D Nylon RipStop
Fill Weight (Long): 13.5 oz.
Hip Circumference (Long): 54 in.
Features: Ultralight
Gender: Mens
Best Use: Ultralight Backpacking, Backpacking, Bikepacking
Insulation: Down
Sleeping Bag Shape: Mummy
Fill Details: 900 Fill Power Goose Down

ThermaCapture Radiant Heat Technology is a proprietary reflective coating that we apply to a range of surfaces. By reflecting radiant heat back to your body that is otherwise lost, this extremely lightweight coating turns that surface into a very efficient heat reflector, amplifying warmth without the excess weight or bulk of added, conventional insulating materials.

Product Reviews

Rated 4 out of 5 by from GREAT! needs slightly larger stuff sack LOVE IT! Light and warm with more freedom of movement than a sleeping bag. can’t get it to fit into the stuff sack that came with it, (I had other people try too) so I’m using a slightly larger one.
Date published: 2023-10-12
Rated 4 out of 5 by from Meets expectations Packs well and is light, which is why I bought it. Although it's a couple ounces heavier than listed. When I first got it, the down was pretty poorly distributed, which is to be expected somewhat. But a lot of the quilt had the inner and outer fabric touching. It took a lot of effort and fluffing to get it worked around. I'm a slightly cold sleeper, and from 35-45 degrees I was comfortable with light merino bottoms, socks, t shirt and hooded puffy jacket on a 4.5 R value pad. To get this thing to it's comfort rating of 32 would be a slight stretch for me personally but could be done with the right layering. For early season in the mountains, it's great and most importantly, light.
Date published: 2023-09-19
Rated 5 out of 5 by from Alaskan Backcountry Approved I don't normally leave reviews but I felt compelled to write some for a few choice gear selections following a recent unforgiving Alaskan tundra backcountry caribou hunt. My new Therm-a-Rest Vesper 20 deg quilt happened to be one of the notable ones. The extremely wet late-summer conditions, although anticipated, were a morale impeding challenge. Paired with heavy winds due to lack of vegetation, I looked forward to a warm and comfortable, albeit short, evening rest each day. Paired with a quality high R-value pad, I was very content. I'm a side sleeper who languished with cheaper mummy bags from other companies for years before finally trading up. This quilt is very backpacker friendly. I'm 5' 10" and the regular size worked well for my purposes. I was warm and cozy despite temperatures dipping down to the high 30s. Went to sleep each night with somewhat moist socks and base layers but woke up dry. Was a bit concerned about having down fill in driving rain conditions but didn't experience any issues (due in part to a quality tent) Highly recommend this product! Pros: -Durable -Warm -Side sleeper friendly -Lightweight -Packs small Cons: -Expensive (buy once cry once)
Date published: 2023-09-16
Rated 5 out of 5 by from Quality Quilt Just received the quilt. Build quality feels top-notch, as expected with all Therm-a-rest products. Excited to take this quilt out this fall.
Date published: 2023-09-15
Rated 4 out of 5 by from Good for Finnish spring, summer and early autumn - compression bag breaks easily I love my Vesper quilt, it’s made sleeping in the back country so much more comfortable and free. Have had mine out and about for 5 or 6 times now and it does well in night temps above 10C - it’s even a bit too warm in the middle of Finnish summer. The only downside I’ve noticed is that the compression bag has weak seams - mine has torn by a strap already, and I don’t think I can buy a replacement online :( this packs so small, it’s a little sad when you can’t compress it all the way.
Date published: 2023-08-28
Rated 5 out of 5 by from The best decision I made This Vesper 20 degree quilt was the best decision I ever made on new backpacking equipment! I also purchased the Thermarest Mondo King 3D sleeping pad. These two combined items gave me a backpacking sleeping system that yielded the most comftorable sleep that I have ever had on a longhaul hike on the JMT. The vesper quilt design is such that I was warm on cold nights and never too warm on warmer nights. THANK YOU THERMAREST!
Date published: 2023-08-01
Rated 5 out of 5 by from Super light, packable, and easy 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.
Date published: 2023-05-29
Rated 5 out of 5 by from Light, Small & warm Used on a recent overnight in Maine. Camped out in the snow with temps in the low 30s/high 20s. Was only slightly cold, but not enough to be uncomfortable. I also have my dog that snuggles in so some drafts were happening from that. Still an awesome quilt. Plan to use on my long trail thru hike
Date published: 2023-05-03
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What type of sleeping pad is recommended? When I do multi day thru hikes I bring my inflatable Nemo short 8 oz pad. Not sure the shorty would work too well

Asked by: Daleen
Hi Daleen, thanks for the question! I honestly don't think your Nemo pad would cause any problems with this quilt, you can see a standard pad strapped to this quilt in that second to last stock photo. Just keep in mind this Long we have available is 79", I hope this helps!
Answered by: Marty Moose
Date published: 2020-12-24

What are the recommended height differences between the two sizes?

Asked by: behubert
Hey there! Great question! The regular fits up to 72 inches in length, and the Long fits up to 78 inches in length. I hope this helps!
Answered by: Buttercup
Date published: 2023-08-19

Hi would this fit a wide pad? I have the big Agnes wide version. 

Asked by: Micaela
Hey there, thanks for your question. The Therm-a-Rest Vesper 20 UL Quilt connects to the pad using what they call SynergyLink Connector. These are removeable straps that hold the quilt centered on your pad. These function best with regular 20in wide, sized sleeping pads. You might be able to stretch it to fit a 25" but I wouldn't recommend it. I hope this helps!
Answered by: Gator
Date published: 2023-05-12

How many synergy link connectors does this quilt come with?

Asked by: OutdoorGal
Hey there OutdoorGal, Thanks for your question. This quilt comes with one synergy link connector. Hope that helps!
Answered by: Rocko Gigsby
Date published: 2019-01-11

What is the smallest compressed size of this bag?

Asked by: madelene
Hi madelene, good question! Compressed inside it's stuff sack, this bag is 5.5" x 8", I hope this helps!
Answered by: Marty Moose
Date published: 2019-02-12
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