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  • Mammut - Sphere Down 3-Season Sleeping Bag: 14 Degree Down -

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  • Mammut - Sphere Down 3-Season Sleeping Bag: 14 Degree Down -

Mammut Sphere Down 3-Season Sleeping Bag: 14 Degree Down

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1 Review


Enter the circle of warmth.

Climb into the Mammut Sphere Down 14 Degree 3-Season Sleeping Bag and rest your cold and weary bones after a harsh day of backpacking. Light and lofty 800-fill down insulation comforts you with warmth toasty enough for spring-to-fall adventures, while the prolightTX shell adorns the Sphere with windproof yet air permeable protection, so you don't become a sweaty mess or feel a brisk gust throughout the night.

It's also water-resistant and highly compressible for added protection and easy packing. Mammut then designed it in a snug, weight-saving mummy shape with an ergonomic hood and footbox for customized comfort. The draft collar makes sure you don't feel a breeze through the 3/4-length zipper, and it also features a stuff sack with a waterproof roll-top closure and a storage sack.

  • Incredibly lightweight, warm, and compressible sleeping bag
  • Windproof, water-resistant shell adds protection
  • 800-fill goose down insulation offers tons of warmth
  • Draft collar shields you from chilly gusts
  • Included stuff sack makes for easy transport
  • Mummy shape makes the most of your warmth
  • Item #MAM00U6

Tech Specs

[main] prolightTX (100% polyamide), [lining] lightTX (100% polyamide)
800-fill white goose down
Max User Height
[regular] 5ft 10in, [long] 6ft 4in
Draft Tube
Fill Weight
[regular] 15.8oz, [long] 1lb 1.6oz
Stuff Sack
yes, included
Claimed Weight
[regular] 1lb 12oz, [long] 1lb 13oz
Recommended Use
camping, backpacking
Manufacturer Warranty

Tech Specs

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brilliant bag

    At less than 2 Lbs and 15 degree's this is one legit bag. Used it motorcycle camping a few times and on one three day backpack trip in the Wind River range last fall. Great materials, high quality down with a lot of loft. Used down to the low 30's and the bag is seriously efficient. I never had to zip it all up and batten down the hood. Slept out in it with a little dew in the morning and the shell kept the down dry, shook it off and it was dry in minutes. Use it in an event Sea to Summit compression sack and can get the bag super small. All around I'm totally happy. I sleep on my back and front and the bag is comfy. If you like to spread out this may not be your bag but for me it works great.