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  • NEMO Equipment Inc. - Sonic 0 Sleeping Bag: 0 Degree Down - One Color
  • NEMO Equipment Inc. - 3/4 Front -
  • NEMO Equipment Inc. - Open -

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  • NEMO Equipment Inc. - Sonic 0 Sleeping Bag: 0 Degree Down - One Color

NEMO Equipment Inc. Sonic 0 Sleeping Bag: 0 Degree Down


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    2 Reviews


    A versatile bag for cold and snowy adventures.

    From hut trips in the Monashees to winter camping in Montana, Nemo Equipment's Sonic 0 Degree Down Sleeping Bag is a good choice whenever temperatures will be between the high teens and single digits. Never one to follow the rules, Nemo Equipment designed the Sonic with a venting system you won't find on too many sleeping bags in its class. Thermo Gill vents along the torso can be zipped open if things start to get too toasty in your tent or in the hut, but the vents won't let cold drafts in, so you won't have to worry about waking up with a bad case of chills when you fall asleep with them open.

    For insulation, Nemo went with 850-fill Power Down, making the bag compressible, warm, and light. Since moisture and down are never a good combination, Nemo treated the outer fabric with a DWR finish to repel light moisture from snow and condensation and made the footbox from its waterproof and breathable Osmo material for even more protection from wetness.

    • 0-degree temperature rating
    • 850-fill down insulation
    • Mummy shape
    • 20D ripstop nylon with DWR finish
    • Waterproof and breathable Osmo footbox
    • Thermo Gills adjustable vents
    • Insotect Flow Vertical baffles
    • Adjustable hood
    • Insulated draft collar and tube
    • Stuff sack and storage bag included
    • Item #NEM003Y

    Tech Specs

    20D nylon ripstop, DWR coating
    850-fill down
    Max User Height
    6 ft
    Shoulder Circumference
    61 in
    Hip Circumference
    58 in
    Foot Circumference
    53 in
    Draft Tube
    yes, Thermo Gills
    Fill Weight
    23.6 oz
    0 F
    Storage Sack
    yes, cotton
    Stuff Sack
    yes, drawstring
    Stuff Size
    11 x 18 in
    Claimed Weight
    2 lb 11 oz
    Recommended Use
    backpacking, winter camping
    Manufacturer Warranty
    limited lifetime

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    Warm bag, maybe too roomy

    • Familiarity: I've used it once or twice and have initial impressions

    Used down into the mid 20F in a three season tent with Nemo Tensor insulated pad. Very warm with only reasonable layers on. High quality, not too heavy, soft and comfortable, but doesn't pack very small. Only real issue I can find is feet and legs tend to get cool because foot area is LARGE. Great to stretch out, hard to heat up. I'm 5'11" and fit nicely in a medium.

    Killer bag, WARM

    • Familiarity: I've used it several times

    This is a great bag. What I like the most is that I can use this bag in wide variety of temps. The Thermo GIlls really do work. There hasnt really been a good way to regulate body temp until now. Just unzip the gills (basically taking away the 3D baffling, exposing the seam that touches the body) and Voila! You drop the temp rating up to 20-30 degrees in my experience. Match this with 850 fill down, waterproof footbox, and stretch a the knees, and you got comfort with versatility.