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L.L.Bean Ultralight Sleeping Bag, 20° Mummy

Item # PF504192
(5)
Regular
Long
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REVIEWS
(5)

Product Details

Our popular ultralight sleeping bag now features Primaloft Gold with Cross-Core, a mid-loft ultralight insulation that retains much of its insulating ability even when compressed. It's an incredibly light, compressible and comfortable sleeping bag.

Size & Fit

  • Regular fits users up to 6'; Long fits users up to 6'6".
  • Specs

    Regular

  • Weight: 1 lb. 15 oz.
  • Packed size: 14" x 6.5".
  • Long

  • Weight: 2 lb. 1 oz.
  • Packed size: 14" x 6.5".
  • Construction

  • Shell and lining made from soft, durable 20-denier ripstop nylon.
  • 100-gram Primaloft Gold insulation with Cross-Core technology.
  • This insulation has more warmth and compressibility than traditional synthetics without the bulk.
  • Additional Features

  • Roomy shape allows plenty of shoulder room.
  • Small inside pocket on shoulder for headlamp, glasses or other essentials.
  • Half-length zipper allows convenient venting.
  • Trapezoidal footbox provides extra room for feet or extra layers.
  • Compression stuff sack and oversized cotton storage bag included.
  • Unless otherwise specified, regular mummy sleeping bags come with right-handed zippers.
  • Long mummy bags come with left-handed zippers.
  • Temperature rating tested in to EN 13537 standards.
  • Imported.
  • The Technology

    This is the only sleeping bag in the world to feature Cross-Core, an industry-changing innovation that fuses NASA-developed aerogel technology with existing PrimaLoft Gold insulation, for more warmth without adding an ounce of weight. Sean McCoy, Managing Editor of GearJunkie.com had this to say: “Why is this a big deal? Well, aerogel is the lightest insulator on Earth.” It allows us to build a roomy, comfortable rectangular bag that's more than light enough to take backpacking.
    Customer Reviews
    L.L.Bean Ultralight Sleeping Bag, 20° Mummy
    Average Rating
    5 / 5
    3.0/5
    60%
    3 out of 5 of reviewers would recommend this product.
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    Keyword
    Size Range
    Showing 1-5 of 5
    5 / 5
    October 21, 2018
    Lightweight but not warm
    Size Range:
    Regular
    I really hoped to love this bag. Took it out on a backpacking trip and even though the temps were in the high 40s, I was cold throughout the night. I especially... more
    Boston
    Response from L.L.Bean
    October 29, 2018
    By L.L.Bean Customer Satisfaction Team
    We're sorry this sleeping bag wasn't warm enough for you. Our mummy bag warmth ratings are designed to be as accurate as possible and are tested to meet or exceed EN 13537 and industry standards for warmth ratings. However, many variables can affect an individual's warmth including proper layering, sleeping pad selection, and cold tolerance. Please contact Customer Service if you'd like assistance selecting a bag that will meet your needs.
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    1 out of 1 found this review helpful.
    5 / 5
    August 22, 2018
    Worth the money for being compact
    Size Range:
    Regular
    I carry one LL Bean backpack, oversized, for sailing. This sleeping bag fits nicely into the bottom compartment of that backpack. I am always ready to... more
    Columbus, OH
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    1 out of 2 found this review helpful.
    5 / 5
    August 4, 2018
    Wanted to love it
    Size Range:
    Regular
    I really wanted to love this bag, nicely made, and super compressible for a synthetic. However, I FROZE in the bag in 40+ degree temps two different times.... more
    Bozeman, MT
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    4 out of 4 found this review helpful.
    5 / 5
    July 16, 2018
    Not 20 degrees
    Size Range:
    Long
    The rest of my bags are rated 0 to 20, but are not light-weight bags. We went on a family trip to a hiking conference, and stayed in a cabin. I froze... more
    Galesburg, ND
    Response from L.L.Bean
    July 18, 2018
    By L.L.Bean Customer Satisfaction Team
    We're so sorry you weren't warm enough in this sleeping bag. With proof of purchase, you are welcome to return for a refund or exchange.
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    4 out of 4 found this review helpful.
    5 / 5
    July 5, 2018
    Amazing
    Size Range:
    Regular
    I love this bag so much that I’m planning to buy 3 more for my kids. It’s incredibly lightweight and compact. Perfect for backpacking! It’s very warm too.... more
    Portland, ME
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    2 out of 3 found this review helpful.
    Showing 1-5 of 5