TETON Sports Fahrenheit 20˚F Mammoth Double Sleeping Bag 1064
TETON Sports Fahrenheit 20˚F Mammoth Double Sleeping Bag 1064
TETON Sports Fahrenheit 20˚F Mammoth Double Sleeping Bag 1064
TETON Sports Fahrenheit 20˚F Mammoth Double Sleeping Bag 1064
TETON Sports Fahrenheit 20˚F Mammoth Double Sleeping Bag 1064
TETON Sports Fahrenheit 20˚F Mammoth Double Sleeping Bag 1064
TETON Sports Fahrenheit 20˚F Mammoth Double Sleeping Bag 1064
TETON Sports Fahrenheit 20˚F Mammoth Double Sleeping Bag 1064

Fahrenheit 20˚F Mammoth Double Sleeping Bag

Sale price$199.99

The Fahrenheit Mammoth Double Sleeping Bag is the perfect two-person sleep system when you’re looking to enjoy the outdoors together. The soft-to-the-tou... + Read More

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The Fahrenheit Mammoth Double Sleeping Bag is the perfect two-person sleep system when you’re looking to enjoy the outdoors together. The soft-to-the-touch cotton liner, draft tubes, and mummy-style hood make it just right for snuggling. Simply bring one sleeping bag to eliminate the hassle of packing two separate sleeping bags and zipping them together. It’s thoughtfully designed so you’ll never want to leave the comfort of your sleeping bag.

  • Car camping double sleeping bag
  • Rated for cold temperatures
  • Sturdy taffeta shell
  • Soft-to-the-touch cotton liner
  • Mummy style hood
  • Double-layer construction entire width and length of bag
  • Full-width baffles and full-length zipper and shoulder draft tubes
  • Sturdy anti-snag two-way zippers with metal pulls
  • Unzip completely to make two camp comforters
  • Lifetime Warranty




  • 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

    4.8
    Rated 4.8 out of 5 stars
    Based on 21 reviews
    Total 5 star reviews: 16 Total 4 star reviews: 5 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
    100%would recommend these products
    21 reviews
    • RH
      Ryan H.
      Verified Buyer
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 5 out of 5 stars
      Dec 13, 2022
      Ryan H

      Money very well spent excellent quality very comfortable sleeps to you with plenty of room very happy with my purchase .

    • GA Profile picture for Gosia A.google logo
      Gosia A.
      Verified Buyer
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 4 out of 5 stars
      Jun 2, 2023
      super warm

      The comfort of this sleeping bag is outstanding. I've struggled to keep warm camping in Colorado, and with this sleeping bag we were toasty, even too warm (late May, temps in mid 30s) when sleeping in the back of our Outback. Pretty big to begin with, once taken out of the bag it quickly puffs up and gets very large. This means fluffy and comfortable. One star off for all the sweat and swears required to put it back in it's bag.

      It's nearly impossible.

    • CK
      Carl K.
      Verified Buyer
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 5 out of 5 stars
      May 8, 2023
      Awesome sleeping bag

      It’s massive! I’m over 6’3” and there loads of room! Feels high quality and should last a life time. Really pleased with it.

    • TB
      Thomas B.
      Verified Buyer
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 4 out of 5 stars
      May 8, 2023
      double bag review

      Super comfy, super warm, just ENORMOUS and impossible to get back in its bag. It took me over 5 minutes just to get it out of the bag. Other than that, we love it.

      TETON Sports
      May 16, 2023

      Hi, Thomas. Thank you for your review of the Mammoth Sleeping Bag. We're sorry that you're experiencing so much difficulty storing the bag. I've included a link to a video below in hopes that it will help you to be able to stuff the sleeping bag a bit easier.

      https://www.youtube.com/watch?v=8G_ibRTroIA&list=PL9DD589BE4F42A39F&index=2&t=72s

      Please reach out to our customer support team at info@tetonsports.com if you need any additional help.

    • PM
      Phil M.
      Verified Buyer
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 5 out of 5 stars
      Apr 10, 2023
      Great bag

      This sleeping bag really does keep you warm. My wife and I put a tent up in the snow at Tehachapi Mountain park. It was around 28 degrees and we were both very warm and cozy in this bag. Worth every penny. I would highly recommend this bag to anyone. Great size also. We both fit inside with plenty of room to move around. I would not hesitate to buy one of these again.

    • SG
      Steven G.
      Verified Buyer
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 5 out of 5 stars
      Mar 31, 2023
      Best sleeping bag ever

      I purchased a sleeping bag for any of it. Unfortunately I didn’t get it in time for the event but their customer service was great. They were even willing to meet me at Sand Hollow and bring me a sleeping bag that I bought. Can’t get better service than that when I got home. My sleeping bag was there and I think it’s great. I used it this week, and after 27 years in the army with my military sleeping bags that do keep me very warm. This sleeping bag gave me more room and comfort and warm. Highly recommend them.

    • BH
      Brian H.
      Verified Buyer
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 4 out of 5 stars
      Mar 20, 2023
      This thing will keep you warm!

      I already had the 1 person bag. Bought this for a trip to Colorado for my wife and I. The size is perfect and it kept both of us incredibly warm (borderline hot) while it was 10 degrees outside. My only complaint is the masochistic process of trying to put the bag back in the compression sack (and yes, I watched the tutorial videos)

    • LC
      Lawrence C.
      Verified Buyer
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 5 out of 5 stars
      Mar 13, 2023
      Worked out great

      I really like the sleeping bag, very comfortable

    • JF
      JENNIFER F.
      Verified Buyer
      Fahrenheit 20˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 20˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 5 out of 5 stars
      Jan 21, 2023
      SUPER NICE!!

      I've purchased 3 of these sleeping bags and we all LOVE them! High quality, plush and I bought them not just for camping out but also because you never know when you might need them during a power outage in the winter to stay nice and TOASTY indoors!!!!! Great to have on hand for recreation or necessity! : )

    • SO
      Sara O.
      Verified Buyer
      Fahrenheit 20˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 20˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 5 out of 5 stars
      Jan 16, 2023
      Great mid temperature sleeping bag

      If you’re flying to camp this is pretty big to get in some suitcases. But it’s worth it for cooler temperatures. We also used it for warm temperatures too and it wasn’t too bad.

    Reviews LoadedReviews Added

    Questions & Answers

    TETON Story & Values: Image shows three backpackers standing atop a large boulder. They are wearing TETON Sports backpacks and are staring away from the camera at a large mountain in the distance.

    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.