Klymit Wild Aspen 20 F Mummy 3-Season Lightweight Water-Repellent Camping Sleeping Bag, Large
Klymit Wild Aspen 20 F Mummy 3-Season Lightweight Water-Repellent Camping Sleeping Bag, Large
Hero image 0 of Klymit Wild Aspen 20 F Mummy 3-Season Lightweight Water-Repellent Camping Sleeping Bag, Large, 0 of 9

Klymit Wild Aspen 20 F Mummy 3-Season Lightweight Water-Repellent Camping Sleeping Bag, Large

108 ratings

Key item features

  • Three-season bag comfort-rated down to 20°F (-7°C) with advanced synthetic insulation for optimal warmth.
  • High-performance synthetic insulation retains heat efficiently while remaining lightweight, packable, and dependable in damp conditions.
  • Durable 50D 230T micro-polyester shell offers exceptional water and abrasion resistance against rugged ground.
  • Adjustable deep-pocket mummy hood seals in warmth around your head and neck for enhanced thermal efficiency.
  • Full-length insulated zipper draft tube blocks cold air from entering to ensure uninterrupted sleep.
  • Measures 82 x 32 inches and weighs 3.1 lbs, with a pack-down size of 8.5 x 13 inches in the compression sack included.

Specs

Color, GreenSleeping bag type, Mummy Sleeping BagsMinimum temperature, 20 ºFFill material, PolyesterWeight, 3.1 lbActivity, Backpacking, Camping, Everyday, Glamping, Hiking, Outdoor Activity, Travel

About this item

Product details

The Klymit Wild Aspen 20 F Large Sleeping Bag is designed for three-season camping and backpacking, delivering reliable comfort in a 20 degree rating. Sized at 82" x 32" with a 60" shoulder girth, this cold-weather bag offers a spacious fit for backcountry campers. High-performance synthetic insulation provides an excellent warmth-to-weight ratio to help retain body heat, while the lightweight micro-polyester shell offers water and abrasion or use. A soft interior liner adds comfort, and the adjustable mummy hood fits snugly around the head and neck for added protection on chilly nights. The full-length zipper draft tube helps block cold air, while the roomy footbox provides extra space without sacrificing thermal efficiency. Weighing just 3.1 lbs. and packing down to 8" x 13" in the included compression sack, this mummy sleeping bag is a dependable choice for your next wild adventure.
  • Three-season bag comfort-rated down to 20°F (-7°C) with advanced synthetic insulation for optimal warmth.
  • High-performance synthetic insulation retains heat efficiently while remaining lightweight, packable, and dependable in damp conditions.
  • Durable 50D 230T micro-polyester shell offers exceptional water and abrasion resistance against rugged ground.
  • Adjustable deep-pocket mummy hood seals in warmth around your head and neck for enhanced thermal efficiency.
  • Full-length insulated zipper draft tube blocks cold air from entering to ensure uninterrupted sleep.
  • Measures 82 x 32 inches and weighs 3.1 lbs, with a pack-down size of 8.5 x 13 inches in the compression sack included.
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Color

Green

Sleeping bag type

Mummy Sleeping Bags

Minimum temperature

20 ºF

Fill material

Polyester

Directions

Fabric Care Instructions

We recommend washing your bag in a front-loading washer. Never use an agitator-style machine as the motion can damage the stitching and insulation. Make sure to wash your sleeping bag on the gentle cycle in cool water with gentle detergent, no bleach!

Warranty

Warranty information

2 Year Klymit Warranty

Warnings

Customer ratings & reviews

4.3 out of 5 stars
stars
108 ratings84 reviews
Includes global ratings and reviews
How item rating is calculated

Reviews summary

Pros

  • : Offers great value considering its cost.
  • : Ideal for trips with vehicle access.
  • : Provides warmth for cooler nights.
  • : Provides sufficient room for comfort.
  • : Packs small and is light.

Neutral

  • : It compresses to a very small volume but needs a compression sack.
Generated by AI
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 84 reviews

Sep 17, 2025
Reviewer name: Mike May
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Great sleeping bag at a great price

We used this bag last week for a three-day trip (car camping) and it was perfect for what we needed. Comfortable, packs down well and I'm sure we'll get years of good use out of it. Teamed it with a Klymit sleeping pad and it was a great set up.

Review from klymit
Helpful?2T60YYZBPSY117506609793
Nov 1, 2025
Reviewer name: Andrea S
5 out of 5 stars
5 out of 5 stars review

Super comfortable and warm, I have used it for cooler Montana nights, and people oftentimes ask to borrow it rather than using their own sleeping bags. the size of the bag is super nice as well and can pack down for backpacking/ or easier camping organization

Review from ExpertVoice.com
Helpful?2T60YYZBPSY117506609793
May 21, 2025
Reviewer name: JAY P
5 out of 5 stars
5 out of 5 stars review

toasty bag

great sleeping bag with excellent insulation. used it on a hike to the everest base camp. I little on the bulky side but budget friendly for me

Review from ExpertVoice.com
Helpful?2T60YYZBPSY117506609793
Current price is $89.94
Price when purchased online
  • Free shipping
  • Free 90-day returns

How do you want your item?

Try 30 days for just $1! Choose a plan at checkout.
How do you want your item?
Ships to
Arrives by Today
.
Order within 13 min
Sold and shipped by Walmart.com
Free 90-day returns
This item is gift eligible
walmart plus

Try 30 days of Walmart+ for just $1!

T&C apply.