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$169.99 Regular price$199.99
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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... + 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


  • All TETON Sports products are backed by a limited lifetime warranty.

    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

    4.9
    Rated 4.9 stars
    Based on 7 reviews
    Total 5 star reviews: 6 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
    100%would recommend these products
    7 reviews
    • MT
      Margaret T.
      Verified Buyer
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 5 stars
      Aug 28, 2022
      birthday present to my son

      he was very pleased with it

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    • AF
      Ashley F.
      Flag of United States
      Verified Buyer
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 5 stars
      Feb 25, 2022
      5 Stars

      Sleeping bag was super comfy and warm. My husband and I both fit comfortably in it and it's perfect for taking on our camping trips!

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    • MA
      Mike and Karen N.
      Flag of United States
      Verified Buyer
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 5 stars
      Sep 23, 2021
      5 Stars

      Just returned from camping above 10,000 feet in the San Juan Mountains. We wanted to stay warm and this bag is fantastic. So cozy, so roomy, so warm. The challenge is to convince yourself to leave it in the morning. We love it. But this thing is HUGE! No way we could get it back into compression bag. It wouldn't fit in any of our totes. So we bought a 50x60 sea bag to store it in. It takes up a lot of room in our jeep. Zipping it apart and putting it in two bags like suggested above is a great idea (not sure why we didn't think of that.) Anyway, we love this bag and now must plan more cold weather camping to do before our camping days are over (we are almost 70).

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    • H
      Heather
      Flag of United States
      Verified Buyer
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 5 stars
      Feb 14, 2021
      5 Stars

      I've been looking for a good, comfortable sleeping bag for a while now that could withstand cold temperatures. As soon as it arrived the hubby, 2 pups, and myself took off to find snow to test its capabilities. This sleeping bag did not disappoint! We did not find the snow we were hoping for but we did find the frigid temperatures. We camped 2 nights in Kentucky with lows around 25'F with no heater on and were both sweating inside the bag in our noninsulated rooftop tent and even the dogs were panting by morning in it. The third night we stayed in Missouri where the temperature dropped significantly to 9'F with a windchill of -6'F and once again we slept with no heater on and were extremely comfortable inside the bag. It was big enough for 2 pups weighing around 20lbs each, my husband who is around 190lbs, and myself at 160lbs. It's super plump for extra comfort, has velcro on both sides at the top to keep the zipper from coming down in the middle of the night, a spot on either side on the inside at the top to put a smaller cell phone to keep it out of the cold, and a drawstring to synch the top around you. I am curious though how long this sleeping bag will hold up but for now I would definitely recommend this to anyone who plans to brave the cold temperatures like we did. I will definitely be buying another temperature rated one to camp with in warmer weather because I feel we would be too warm with the Zero Fahrenheit bag once temperatures were above 35'F but this one is…

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    • JL
      Jose L.
      Flag of United States
      Verified Buyer
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 5 stars
      Feb 8, 2021
      5 Stars

      Use this bag in a Roof top tent and it fits perfectly. Sleeps my 1 year old son, wife and I perfectly snug, warm and comfortable. Taken it down to about 30 degrees and it still kept me plenty warm (sweating almost!)

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    • RD
      Ricky D.
      Flag of United States
      Verified Buyer
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 4 stars
      Jan 29, 2021
      4 Stars

      Just arrived today. Looks to be plenty big and should definitely keep the two of us warm. But couldn't roll it tight enough to get back in stuff sack. Had to separate and put onto two bags. Needs compression straps and then a multi strap compression bag ti make it smaller for your pack. But overall satisfactory.

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    • M
      memaeallan
      Flag of United States
      Verified Buyer
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      Reviewing
      Fahrenheit 0˚F Mammoth Double Sleeping Bag
      I recommend this product
      Rated 5 stars
      Apr 15, 2020
      5 Stars

      AS ADVERTISED!!!

      IT KEEPS YOU WARM AND TOASTY WITH ROOM TO MOVE AROUND!!!

      LOVE IT!!!

      THANKS TETON!!

      Was this helpful?
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