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  • Marmot - NanoWave 55 Sleeping Bag: 55 Degree Synthetic - Flint
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  • Marmot - NanoWave 55 Sleeping Bag: 55 Degree Synthetic - Flint

Marmot NanoWave 55 Sleeping Bag: 55 Degree Synthetic

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    • Flint

    25 Reviews


    Ride the wave to a midsummer night's sleep.

    Don't carry more than you need on your next summer backpacking trip just to sweat buckets all night long. Pick up the Marmot NanoWave 55 Sleeping Bag to minimize your load and stay comfy in warmer climates. Super-packable and lightweight, this bag is the ideal companion on your summer adventures whether you're traveling by boat, bike, or by foot.

    • Lofty SpiraFil insulation combines hollow fibers and denser, solid synthetic fibers in order to offer a balance of warmth, softness and compressibility
    • Insulation fibers are thermally bonded so the insulation maintains its loft and shape longer, meaning more warmth and a better performing bag in the long run
    • DWR-coated shell material fends off light rain and moisture so your bag and insulation stay drier in inclement weather
    • Snagless draft tube won't leave you trapped when nature calls in the middle of the night
    • Snag-free draft tube seals in extra warmth
    • Two-way zipper sliders enhance convenience
    • Included compression stuff sack helps save space in your pack
    • Item #MAR2280

    Tech Specs

    [shell] 100% polyester taffeta, DWR treatment, [lining] 100% polyester plain weave
    SpiraFil 60
    Max User Height
    [regular] 6 ft, [long] 6 ft 6 in
    Shoulder Circumference
    60 in
    Hip Circumference
    58 in
    Foot Circumference
    40 in
    55 F
    European Norm Comfort Rating
    60 F
    European Norm Lower Limit Rating
    54 F
    Stuff Sack
    Stuff Size
    5.5 x 5.5 in
    Claimed Weight
    1 lb 8 oz
    Recommended Use
    camping, backpacking
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    No room to move

    • Familiarity: I returned this product before using it

    I bought this bag looking for a warm weather alternative to my warmer bag and the description had everything I was looking for. When I got the bag I liked the weight but, true to other reviews, getting it in and out of the storage bag was near impossible. They need to make the storage bag a slight bit bigger and put a strap on the bottom so you have a place to hold onto when pulling it out. The length of the bag was great but when I got in and zipped it up there was no room to move. I know it is a mummy bag but a little extra room would be nice. I am 6'2" 195 and consider myself to be average girthiness. Anyone who is a little on the chunky side should stear clear of this bag. I am returning it before I even use it as it will not work for me.

    Great for summer backpacking!

    • Familiarity: I've used it several times

    Great, compact sleeping bag for warm summer nights! Even on cooler nights, I had a little extra blanket in my pack - lined my sleeping bag with it, and slept great (coupled with my down sweater and long johns, of course)!

    Best backpacking Bag

      Marmot is awesome. This bag packs down so small and is under 2lbs. It’s rating is 55°f and can go down to 33°f. I have tested it out in 30°f weather. It was a lil bit chilly but with proper layers I was fine. I take this bag everywhere with me. It is so small it just fits into any backpack or bag. Love the Nanowave series. I would love to try out the other temp bags. ReviewbyDrew

      Marmot Nano Wave 55

      • Familiarity: I've used it several times

      Love this sleeping bag! It’s lightweight and compact making it easy to pack. I’ve used it several times in the desert. It keeps me nice and comfortable during the lower night temperatures. I would highly recommend this product!

      Great for Backpacking!

      • Familiarity: I've put it through the wringer

      This is the perfect bag for a Summer backpacking trip. It is thinner than a typical sleeping bag so it packs down really small and only weighs 1.5 lbs. It's also great to leave in your car for an emergency blanket or for sleeping on a friend's couch.
      All of Marmot's products are very high quality and come with a lifetime warranty. For the price this is an awesome sleeping bag!

      Perfect bag for summer

      • Familiarity: I've put it through the wringer

      This bag is perfect if you are looking for a reasonably priced summer sleeping bag. I have also used this as a liner for cold weather camping. Marmot really did a great job on this bag.

      Great summer bag

      • Familiarity: I've used it several times

      I live in Alabama and this is a perfect bag for late spring-early fall. I needed something other than just my 20 degree winter bag and this was a great addition. It packs down decently small but for the price point it's what you'd expect.

      Perfect for Warm environments.

      • Familiarity: I've put it through the wringer

      I've used this in the heat of summer nights in Moab, 30 degree weather in CO, and 60-70 degree weather in Texas. It does the job I've sought it for. For the colder weather, I just used a liner and bundled a little more with my long johns. I am a firm believer that no matter which sleeping bag you get, use a liner for longevity. I've hung dry it, and my wife has also washed it a couple of times. The semi-mummy sleeping bags are my favorite as they give me the perfect balance between snug and flexibility. It compacts pretty small, think the size of a small watermelon or an oil rig mans giant traveling mug.

      Summer scouting excellence

      • Familiarity: I've put it through the wringer

      I have owned it for over a year now and used it on many trips. Despite the gimmicky first impression this thing is a steal compared to a expensive down bag at least for us with budgets of under $100. It is great for summer camping65-50 and i use it down to 30 degrees when paired with adventure medical kit bivy, inflatable sleeping pad and appropriate layers( full base layer, synthetic t-shirt, fleece jacket. full synthetic pants). I cut the compression straps off of the stuff bag because they were unnecessary for me because the bag is already small and it packs easier without a bunch of webbing every where. I also think it looks better without them. Also when sleeping in a hammock using it like a quilt ( fully unziped with a foot box) is easy with the small hood design.
      Pros- small
      - reasonably accurate on warmth
      -easy paired with other sleep accessories( bivy/pad)
      -comfortable material
      -nice hood design
      -great price

      Cons-compression straps were not useful for me
      -even large is too small for people over 6ft 3in


        I bought this bag for my grandchildren to camp in their back yard. I like how small it is when in storage. Seems to keep them comfortable, warm and cozy. I would recommend it to all my friends.

        Great quality, Summer use only

        • Familiarity: I've used it several times

        Well its exactly as its described, It works great for the temperature range is says it does. 50 degrees is almost too cold though. I tried it out on a 40 degree night and it was pure misery. Even through my bad experiences, the last one was better as it only dropped down to the mid 50s. I was warm enough to actually get some sleep that time. The thing I really like about it however, and moving forward into an arizona summer, is that its SUPER light. Its also tiny when stuffed in the compression sack it comes with. I'm looking forward to the warmer nights here in a few weeks. However once fall rolls around ill be buying something rated for much colder temps.


          Needed a bag that I could use here in south Texas and this was it. Compresses into the sack provided easily and is just a little bit bigger than my Nalgene bottle. Think I might buy a thicker one for cooler months.

          Great summer bag

          • Familiarity: I've put it through the wringer

          I work in a national forest for 8 days straight, two weeks a month and brought this bag with me all summer. Super light weight and compact. What makes this bag great is the material on the inside. It feels less like a sleeping bag and more like some sort of amazing bed sheets, perfect for hot sticky nights in the Georgia mountains, because we all know that we aren't wearing much in our bags in the summer. Perfect for hot sleepers like myself. The downside is that my version doesn't zip all the way open, and I bought it this summer. Way better than the REI bag rated to the same.

          Seemingly solid bag for the price!

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

          I have yet to take the bag out to test the limits of the 55 degree rating but will do so next week and can update then.

          The packability is AWESOME and, contrary to some other reviews, I had no trouble getting the bag back in the provided stuff sack.

          Good video here:

          Initial impressions:

          The long is definitely long enough (I'm 6'1).

          Even though its not a full mummy, its a bit narrow, most noticeably around the knees, but enough room overall.

          The bag is warmer than the VERY thin material would make you think but yet to be tested in under 55 degrees.

          Picture shows it back in compression sack next to a gallon jug of water for comparisson

          Seemingly solid bag for the price!

          warm-blooded campers take note

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

          Backpacking and camping in Georgia summers is a hot, sweaty, sticky affair. Even a 35 degree bag is just too hot to be comfortable. Car camping, you just take a blanket, but what about when you need something lighter and more compact for backpacking?

          This bag is perfect. It's light enough, perfect temperature rating, extremely compact, and the material isn't all plasticky and sticky. What's not to love?

          It comes with a nice compression sack, and is seriously smaller than a Nalgene bottle when compressed. It's a bit heavy for what it is (55 degree down bag would weigh probably half this, but cost $200+), but compared to other 35 or 40 degree down bags, it's competitive. Plus, it can get wet or at least damp and no worries with the synthetic insulation.

          The material is great, it's less like an ultralight synthetic weave, and more of a microfiber cotton. Really comfortable and not sweaty. The length is good, 5'10 and I fit comfortably in the regular with a few inches to spare.

          Backpacking in July, I started the night out with it draped over me like a quilt, and in the middle of the rainy night I got a bit chilly so I zipped it up and was great for the rest of the night. It's perfect for summer in the south.

          My only gripes are that it could be a bit lighter (maybe it doesn't need a hood?), and the zipper doesn't go all the way to the bottom, so you can't use it like a big quilt. Otherwise great bag at a great price.

          As a Georgia native, I am so glad you put that you were in Georgia. It is hard to find bags that would be good for these muggy southeastern nights. I'm about to do a 4 day trip through half of the Great Smoky National Park in August and I just recently found out my 0 degree bag is a little warm for these summer nights. So thank you for the recommendation!

          Perfect for Summer

          • Familiarity: I've put it through the wringer

          This is the best bag for any warm weather camping. I have used this bag in 45 degree weather with no problem! It packs down very small and is great for warm weather backpacking. Anything under 40 degrees you will want a warmer bag, this is for your summer camping and is worth the $.

          Unanswered Question

          How far down the side does this zipper go? I see a lot of people saying it doesn't go all the way down but is it to your waist? your knees? Thanks!

          I ordered the Marmot NanoWave 55 Sleeping...

          I ordered the Marmot NanoWave 55 Sleeping Bag: 55 Degree Synthetic in the regular size. What height person is that good for?

          I will be heading out west this July hitting...

          I will be heading out west this July hitting up Montana, California, Colorado, Nevada, Utah, and some Grand Canyon hiking. Will this bag be good for those conditions and temps?

          It's tough to say, since that's a pretty wide spread of states and climate ranges you've indicated-- temperatures in desert regions can drop significantly below 55 degrees after sundown; ditto for alpine settings. Unless you're an extremely warm sleeper, I'd recommend a bag rated down to at least 40 degrees for some of the locations you've mentioned.

          (Alternately, you could check out sleeping bag liners for supplementation.)

          Feel free to give me a call if you'd like to chat-- 800.409.4502 ext 4456.

          No this bag will not be warm enough. In Nevada, Utah (depending on where you are) and the Grand Canyon it would be fine. But it is nowhere near warm enough for Colorado or Montana, i just got back from the Bighorns and it snowed on us... On the 15 of June, i used a 0 degree down bag and was still chilly if it wasn't zipped all the way. Now this is still mid June which is different than July. I own this bag and i use it in the black hills of South Dakota, just cuz its a low enough elevation it never gets cold enough to freeze. Im going to use it bike packing next week. I would highly recommend looking at the Mountain Hardwear 35/55 degree bag. I think those were the temps. It can be used at a 30 degree bag on one side and you flip it and its 55 on the other side. That would work perfect for what you're explaining. Hopefully this was helpful!!!

          I am planning to walk the Camino next year...

          I am planning to walk the Camino next year in the fall. I need a light bag but I am also concerned about warmth. I will be staying inside at night but there will not be any heat and the temperatures generally get to the high 40s and low 50s. I'm planning to sleep in my you think this bag will provide enough warmth?

          What are your thoughts on using this as a...

          What are your thoughts on using this as a bag liner in a 0 degree down bag during colder conditions?

          Best Answer

          it depends.

          for long term in the field use, i would suggest using a 30 to 45 degree synthetic sleeping bag as an overbag, or get a cottage manufacturer quilt in the same degree range. This will not only add degrees to your 0 degree down bag, but more importantly, moisture from your body prespiring at night will be trapped inside the synthetic instead of the down bag, which is easier to manage, dry, etc.. if you put a synthetic inside your 0 degree down bag, the odds are that your moisture will cool down passing through the synthetic, and freeze inside the down bag, which will cause problems after continous days of use and cause clumping eventually which will make you have to wash the entire bag.

          in a pinch, perhaps for a day or two, you could use this as a liner though without any negative consequences to your down. It should add around 7 degrees to your rating.

          i would only use this as an overbag for moisture management in extreme cold situations, and not rely on it that much for temperature boost, hence me suggesting a warmer synthetic for that.

          Unanswered Question

          Does the zipper go the length of the bag...

          Does the zipper go the length of the bag or just half way?