TETON Sports ALTOS-S 0˚F Mummy Sleeping Bag 1169
TETON Sports ALTOS-S 0˚F Mummy Sleeping Bag 1169
TETON Sports ALTOS-S 0˚F Mummy Sleeping Bag 1169
TETON Sports ALTOS-S 0˚F Mummy Sleeping Bag 1169
TETON Sports ALTOS-S 0˚F Mummy Sleeping Bag 1169
TETON Sports ALTOS-S 0˚F Mummy Sleeping Bag 1169
TETON Sports ALTOS-S 0˚F Mummy Sleeping Bag 1169
TETON Sports ALTOS-S 0˚F Mummy Sleeping Bag 1169
TETON Sports ALTOS-S 0˚F Mummy Sleeping Bag 1169

ALTOS-S 0˚F Mummy Sleeping Bag

Sale price$119.99

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

In stock
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Pickup available at 4882 Wiley Post Way Usually ready in 24 hours

ALTOS-S 0˚F Mummy Sleeping Bag

4882 Wiley Post Way

In Stock Pickup available, usually ready in 24 hours

4882 Wiley Post Way
Salt Lake City UT 84116
United States

+18017047702

Free shipping on orders over $75*

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 when carrying them, but 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 sustainable plant-based fill, vaulted footbox, zipper draft tubes, and a 3-piece hood. Get the ALTOS-S Sleeping Bag and 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


  • Two friends with their Numa packs in a field of flowers

    Hike Happy with

    Signal & Numa

    NEW weather-resistant hiking backpacks with body mapping mesh, versatile pockets, and multiple adjustment points for on the trail comfort

    A man backpacking with his Signal backpack

    Hike happy with

    Signal & Numa Packs

    NEW weather-resistant hiking backpacks with body mapping mesh, versatile pockets, and multiple adjustment points for on the trail comfort

    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

    5.0
    Rated 5.0 out of 5 stars
    Based on 7 reviews
    Total 5 star reviews: 7 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
    100%would recommend this product
    7 reviews
    • AJ
      Adam J.
      Verified Reviewer
      I recommend this product
      Rated 5 out of 5 stars
      Sep 28, 2024
      Not really 0F but excellent bag

      I would not truly call this a 0F bag but it’s definitely my first choice for winter camping when the expected temps are around the freezing mark. It’s also very light and has become my go-to sleeping bag for summer missions when I know it’ll get cold overnight and I don’t want to even consider the possibility of being cold. Took it to basecamp elevations during summer alpine climbs on Baker, Rainier and other Cascades. Worth the money, just don’t bank on it as a 0F.

      Teton
      Sep 30, 2024

      Thank you so much for your detailed review! We’re glad to hear that the sleeping bag has been a reliable companion for your adventures, and we appreciate your feedback on its temperature performance.

      To clarify how we rate our sleeping bags, most of our bags are rated for their extreme temperatures. For this particular bag, the extreme rating is 0°F, but the comfort rating is 30°F. As a general rule, we recommend adding around 30 degrees to the extreme rating to find the comfort rating—the temperature at which most people will stay comfortably warm. Of course, this can vary based on your personal preferences and how your body regulates temperature. We suggest starting with the comfort rating and adjusting from there as you get to know how the bag performs for you.

      Thank you again for your feedback and for choosing our gear for your adventures!

    • WH
      William H.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      Feb 16, 2024
      Perfect

      lightweight, warm, and the material is very nice too, not just the price but also great quality!

    • MC
      Michael C.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      Dec 5, 2023
      fits well

      This bag fits me well with some wiggle room. I doubt I will be summer backpacking with nights below freezing, but I sleep cold so this will be a luxury. I have Teton Sports backpacks for trips (Explorer 75 and 85, for use with different size tents) and this sleeping bag compresses enough to fit in the bag department in both packs. All features are functional. I keep this laid out flat under my bed, making it always ready for a quick pack into pack and will quickly be ready for use after a day hiking.

    • HS
      Harrison S.
      I recommend this product
      Rated 5 out of 5 stars
      Jun 13, 2023
      Warm and Light!!!

      A super lightweight bag that is comfortable and warm! I used it in 20 degree weather with 2 inches of snow on my tent and I was surprised at the warmth. Would recommend, though I would wait for a sale since I bought it for $80!

    • HS
      Harrison S.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      Nov 19, 2022
      Best Bag

      I had been needing a new sleeping bag for a while and decided to try out the Altos S. It exceeded my expectations, it is super warm and comfortable. I would definitely recommend it for any age or gender.

    • MM
      Matt M.
      Verified Reviewer
      I recommend this product
      Rated 5 out of 5 stars
      Jul 18, 2022
      Solid Bag

      I've been using this 4 seasons for the last couple of years. It pairs well with either my milsurp bivvy or hammock. My only complaint is that it isn't available in more natural colors. Keep up the good work, guys.

    • S-
      Steve - Tri State O.
      Flag of United States
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      Dec 13, 2021
      5 Stars

      I was skeptical at first because of the light weight of this bag but I used this bag in 24F degree weather at night in the mountains of PA and I have to say I was pleased with its performance. I was very warm and it was super comfortable. I didn't have to use a second bag or blanket which was nice. It's cold at first because it's not a flannel lining but if you get a micro fleece lining for this bag, it turns into an oven. I don't plant to get out in much colder weather so I think I found a keeper.

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    Questions & Answers

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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.