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Mont Bell

U.L. Super Spiral Down Hugger #0 Sleeping Bag (800 Down)

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Product Information

Product Information For The Mont Bell U.L. Super Spiral Down Hugger #0 Sleeping Bag (800 Down)


Brand Mont Bell
Weight 2 lb 15 oz (Reg); 3 lb 3 oz (Long)
Max User Height 6 ft 0 in (Regular), 6 ft 6 in (Long)
Shoulder Girth 53 - 75 in (Reg); 57 - 81 in (Long)
Hip Girth 44 - 62 in (Reg); 47 - 66 in (Long)
Foot Girth Not Specified
Fill Weight 1 lb 14 oz (Reg); 2 lb 1 oz (Long)
Insulation 800 Fill Goose Down
Insulation Type 800+ Down Insulation
Material 12D Ballistic Airlight Nylon DWR
Packed Size 7.9 x 15.6 in
Temperature Range 0° to 10°
Temperature Rating

Help Docs


MontBell has adapted a classic tailor's trick by integrating a woven fabric "cut on the bias". By orienting the fabric's warp and weft threads at 45 degrees to most major seam lines the sleeping bag becomes more fluid or elastic in nature. Additionally, coiled or crimped fibers are used in the fabric weave to capitalize on their inherent stretch properties. To create an even more comfortable system we utilize an elastic stitch technique to create small "gathers" in the quilting. By combining this stretchy fabric, strategic seam orientation, and the elasticized gathers we offer unrivaled fit and comfort. These innovations allow the sleeping bag to stretch with you as you change positions throughout the night, drawing the insulation closer to your body and eliminating drafty dead spaces. Keep body heat inside your sleeping bag, where it belongs.


  • Super Spiral Stretch System
  • Multi-Tube Construction with Flow Gate technology
  • Heat saving Tunnel Hood
  • Draw cord for face hole adjustment
  • Neck Baffle: a shoulder collar prevents air circulation through top of the bag
  • 67 in. mating right & left hand zippers
  • Auto Locking Zipper to limit zipper "slip" during the night
  • Tapered, bias stretch stuff sack for easier packing
  • Cotton storage sack included
  • Double draft tube for increased zipper draft protection

Reviews For The Mont Bell U.L. Super Spiral Down Hugger #0 Sleeping Bag (800 Down)

Questions & Answers

Q & A For The Mont Bell U.L. Super Spiral Down Hugger #0 Sleeping Bag (800 Down)

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2 Questions | 3 Answers
Displaying questions 1-2
  • U.L. Super Spiral Down Hugger #0 Sleeping Bag (800 Down)


    Do you need a mattress pad with this bag, and what kind is recommended?
    Asked on 12/4/2012 by NJW from Summerville, sc

    1 answer

    • Staff Reviewer


      Anytime you sleep in cold conditions, you'll want a sleeping pad. Heat loss occurs with ground contact. Sleeping pads offer insulation between the ground and your bag, where higher R Values equate to greater insulation. The pad you purchase will depend on the temperatures you plan to be in. With a 0º bag, I would imagine you'll be in colder conditions. We would suggest an Exped sleeping pad with a higher R Value if you plan to be in sub 0 temps.

      Answered on 12/5/2012 by Dallon - Gear Expert from
  • U.L. Super Spiral Down Hugger #0 Sleeping Bag (800 Down)


    I hike in washington/coastal BC ergo it rains a lot. If it does not get wet does it retain its wxpected warmth level? If it gets wet, can it go in the dryer mto dry it?
    Asked on 11/1/2012 by angie from Seattle Wa

    2 answers

    • A:

      It is recommended that you let this product dry naturally if at all possible. The filling in this product may bunch in the dryer!

      Answered on 11/1/2012 by Community Answer from None
    • Staff Reviewer


      The strong benefits of down are packability and light weight. If it gets wet, however, all insulating properties are lost (wet down will not keep you warm). With a down bag in wet conditions (including condensation), you will want a sleeping bag cover and a waterproof stuff sack. A synthetic bag may be better suited to wet conditions as it will keep you warm even if it gets wet.

      You can dry a sleeping bag in a large low-heat dryer, but do NOT dry to completion. You run the risk of damaging the down and melting nylon in high heat. Some people like to include tennis balls during dry-time in order to aid the "re-lofting" of plumules.

      Answered on 11/2/2012 by Dallon - Gear Expert from
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