TETON Sports ALTOS-S 20˚F Mummy Sleeping Bag 1168
TETON Sports ALTOS-S 20˚F Mummy Sleeping Bag 1168
TETON Sports ALTOS-S 20˚F Mummy Sleeping Bag 1168
TETON Sports ALTOS-S 20˚F Mummy Sleeping Bag 1168
TETON Sports ALTOS-S 20˚F Mummy Sleeping Bag 1168
TETON Sports ALTOS-S 20˚F Mummy Sleeping Bag 1168
TETON Sports ALTOS-S 20˚F Mummy Sleeping Bag 1168
TETON Sports ALTOS-S 20˚F Mummy Sleeping Bag 1168
TETON Sports ALTOS-S 20˚F Mummy Sleeping Bag 1168

ALTOS-S 20˚F Mummy Sleeping Bag

Sale price$109.99

Save 20% by using code CampCozy at checkout

Step up your comfort. The ALTOS-S Sleeping Bags are designed with you in mind. The water-resistant fill keeps you warm and comfortable. These bags provide more room for your shoulders, legs, and feet.+ Read More

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Step up your comfort. The ALTOS-S Sleeping Bags are designed with you in mind. The water-resistant fill keeps you warm and comfortable. These bags provide more room for your shoulders, legs, and feet.

Step up your features. The ALTOS-S Sleeping Bags are compact, environmentally friendly and so lofty when it’s time for bed. It’s a backpacker’s ultimate solution.

Step up your value. The ALTOS-S Sleeping Bags are not only warm, comfortable, and easy to pack, they also have features you don’t usually see at this price, like a vaulted footbox, zipper draft tubes, and a 3-piece hood. The ALTOS-S Sleeping Bag will step up your adventure.

  • Sustainable plant-based fill
  • Lightweight
  • Extra room in the footbox
  • Anti-snag zippers
  • Sturdy ripstop shell and soft liner
  • Two sewn-in hanging loops for storage or to air dry
  • Drawstring compression sack
  • Lifetime Warranty


  • A woman and her son with a sleeping bag with wildflowers in the background.

    Sleep easy with

    Celsius sleeping bags

    Cozy sleeping bags in a variety of sizes, temperature ratings, and colors to match your style.

    Two Numa packs sitting on rocks near a river.

    Prep for summer with new

    Numa daypacks

    Weather-resistant packs with more room and less bulk, ready for any adventure.

    TETON Sports Lifetime Warranty: Image shows four friends hanging out around a campfire, laughing together. They are surrounded by red rocks and there is TETON Mountain Ultra tent in the background.

    Built TETON Tough

    Our Lifetime Warranty

    All of our products are backed by a limited lifetime guarantee. Our products are built to withstand whatever nature throws at you, but rest assured, our warranty will help get your gear repaired or replaced if anything goes wrong.

    Product Reviews

    4.5
    Rated 4.5 out of 5 stars
    Based on 2 reviews
    Total 5 star reviews: 1 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
    100%would recommend this product
    2 reviews
    • JH
      Jessie H.
      Flag of United States
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      Mar 22, 2022
      5 Stars

      Used this camping for the first time this weekend and was very happy with the bag. My 6-year-old daughter used the bag and stayed plenty warm down to the low 30s and even mentioned how comfortable the sleeping bag was.

      As another review previously mentioned, it's worth calling out how great the stuff sack is. It compresses the bag to a great size, while also being incredibly easy to repack. I've gone through many sleeping bags over the years and never had one as easy to pack as this one. Loved it!

    • MM
      Mathew M.
      Flag of United States
      Verified Buyer
      I recommend this product
      Rated 4 out of 5 stars
      Sep 8, 2021
      4 Stars

      Firstly, I'll say that I've yet to test it in the field. This is only my initial impression.

      First thing, the compression sack was surprisingly impressive. The material is thicker, with quality webbing and buckles. It would easily take a silicon impregnation type water repellant or stand up to being repurposed for other gear (handy, because I usually pack my bed and shelter in its own water tight bag). It easily takes the bag down to about 60% of its advertised pack width without trouble even after repacking it.

      Second, the bag itself seems solid. I love the extra room in the foot area, though it's a bit snug in the shoulders. Though not tight enough to be problematic. I'm fairly average size, 5'10", 160lb, with a 39" chest. Other than that, it's warmer than expected, the zips work extremely well, it packs very neatly, and should stand up to some heavy use.

      Will update later.

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    Enjoy Life Outdoors

    We believe the outdoors is there for everyone to enjoy. Whether you're blazing a new trail or just want to add a little fresh-air time to your hectic schedule, the outside world is waiting for you. We make the gear that will get you there.