Exped MegaSleep 25/40 Sleeping Bag

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Duplicate your at-home sleep experience in the outdoors -- Take comfort anywhere!

MegaSleep 25/40 is a roomy, rectangular 3-season sleeping bag for car camping and backpacking. On one side, more layers of insulation, when placed over the top of the sleeper, provide a temperature rating of 25°F for cooler nights. The other side, with a little less insulation, is just right for warm summer nights with a rating of 40°F.

MegaSleep 25/40 is designed to fit the EXPED MegaMat for an at-home sleep experience anywhere, but due to its lightweight and compressible materials it can be carried in a backpack as well. It quickly and easily unzips to become a plush blanket for unrestricted sleeping. MegaSleep 25/40 can also be zipped together with another MegaSleep 25/40 to create a roomy couples sleeping bag.

  • Available in two temperature ratings
  • Versatile, 2-in-1 sleep solution: sleeping bag or blanket
  • Full-length draft tube along the zipper to stop heat loss and enhance warmth
  • Durable, warm, quick-drying microfiber insulation for resilient, long-lasting performance
  • All next-to-skin fabrics are treatment-free, minimizing skin contact with allergens or chemicals
  • Roomy rectangular shape fits MegaMat
  • Includes a convenient adventure-ready storage duffle bag


    Shape/Fit: Rectangular/comforter
    • M: 34.9 oz
    • L: 40.6 oz
    Width: 31.5 in. (both sizes)
    • M: 78.7 in
    • L: 82.7 in
    Temperature range:
    • Comfort temp.: +39.2 °F
    • Limit temp.: +24.8 °F
    • Extreme temp.: +5 °F


    Shell: 40 D ripstop nylon, Oeko-Tex® 100 certified, PFC-free
    Liner: 40 D nylon, Oeko-Tex® 100 certified, no DWR
    Fill: 100 % polyester, Oeko-Tex® 100 certified


    We offer different cuts, lengths and widths in our sleeping bags to accommodate most body shapes and sizes.

    Sleeping bag length
    EXPED sleeping bags are sized slightly longer to provide adequate space in the foot box:

    Standard sleeping bags:
    S = 67 in.
    M = 71 in.
    L = 77 in.
    XL = 83 in.

    MegaSleep bags (Single and Duo):
    M = 78.7 in
    L = 82.7 in

    Sleeping bag shoulder width (excluding MegaSleep)
    EXPED designs its sleeping bags with three different widths, depending on the activity/needs of the user:

    Standard fit: 31 in. at shoulder
    Wide fit: 35 in. at shoulder
    Slim fit: 29 in. at shoulder

    Contours the body with enough space in the lower section to allow bending of the knees and enough space in the upper section to move.

    Cut for those who prefer the highest possible freedom of movement during sleep. It's also a great option for stomach sleepers.

    This body-hugging width is designed to save as much weight as possible without sacrificing comfort.

    Note:We highly recommend trying out the sleeping bag for width and length before purchasing in order to determine the proper sleeping bag size.