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Tapered at the shoulders and roomier at the hips, the REI Co-op Lyra 24 sleeping bag is tailored to give female backpackers 3-season warmth and excellent compressibility at a great price.

  • Features

    • REI-exclusive insulation uses a mixture fibers to create the right balance of compression, recovery, warmth, loft and softness
    • Designed for women: increased hip room and decreased shoulder room offer better thermal efficiency
    • Hood holds a backpacking pillow (sold separately); pad loops hold a sleeping pad (sold separately) in place
    • Draft collar, face muffler and full draft tube keep cold air out
    • Interior pocket for stashing essentials
    • Differentiated drawcords at hood and neck (1 round, 1 flat) simplify adjustments in the dark
    • Antisnag zipper guard keeps zipper operating smoothly
    • Shingled construction with overlapping layers eliminates cold spots
    • Water- and abrasion-resistant ripstop nylon shell
    • Trapezoidal footbox mirrors body shape for thermal efficiency
    • Comes with a stuff sack for packing and a roomy nylon/mesh sack for breathable storage


    Many sleeping bags are rated for temperature by an independent testing protocol. With both European Norm (EN) 13537 and International Organization for Standardization (ISO) 23537 testing, each bag gets a Comfort (or T-Comfort) rating and Lower (or T-Limit) rating. The Comfort/T-Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower/T-Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Ratings are based on a person wearing one long underwear layer and a hat, sleeping on a single 1 in. thick insulating pad. Many brands use the Comfort rating for women's bags and the Lower rating for men's and unisex bags. Everyone's body and sleep comfort differ, so EN and ISO ratings are simply a guideline to help you compare products.
    View all REI Co-op Women's Sleeping Bags
  • Technical Specs

    Best Use


    Tested Lower Limit

    12 degrees (F) - EN

    Tested Comfort

    24 degrees (F) - EN

    Temperature Rating (F)

    25 degrees

    Temperature Rating (C)

    -3.9 degrees


    30-denier ripstop nylon

    Zipper Location


    Insulation Type



    Synthetic fibers


    40-denier nylon

    Sleeping Bag Shape


    Stuff Sack Size

    8 x 18 inches



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