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  • Marmot - NanoWave 45 Sleeping Bag: 45 Degree Synthetic - Team Red
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  • Marmot - NanoWave 45 Sleeping Bag: 45 Degree Synthetic - Team Red

Marmot NanoWave 45 Sleeping Bag: 45 Degree Synthetic


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    • Team Red

    18 Reviews


    A small and light bundle of warmth.

    When you're bicycle-touring cross-country, paddling for a week in the Boundary Waters, or backpacking Isle Royale, space and weight are at a premium. Bring along the Marmot NanoWave 45 Sleeping Bag, and stay comfy at night without contributing to any back-crushing weight during your daytime travels. This lightweight yet durable bag uses high-loft Spirafil 100 synthetic insulation to keep you warm on chilly summer nights. 

    You might be tempted to think that, at less than two pounds, the NanoWave skimps on features of convenience and functionality. Have no fear; Marmot created this easily-packable bag while still focusing on the details. Blanket construction, a snagless draft tube, two-way zipper sliders, and a zipper garage all contribute to comfort and convenience. Expertly designed features like "feely" drawcords and hang loops prove that Marmot's designers have been out there and know what features adventurers like you want. 

    • Rated to 45 degrees Fahrenheit
    • High-loft Spirafil 100 synthetic insulation
    • Feely drawcords
    • Snagless draft tube
    • Two-way zipper sliders
    • Blanket construction
    • Two hang loops
    • Zipper garage
    • Compression stuff sack
    • Item #MAR2506

    Tech Specs

    polyester taffeta with DWR treatment
    Spirafil 100
    DWR treatment
    left zip
    Max User Height
    [regular] 6ft, [long] 6ft 6in
    Shoulder Circumference
    [regular] 60in, [long] 62in
    Hip Circumference
    [regular] 58in, [long] 60in
    Foot Circumference
    [regular] 40in, [long] 42in
    Bag Length
    [regular] 84in, [long] 90in
    Draft Tube
    internal stash
    Fill Weight
    [regular] 14oz, [long] 15.9oz
    European Norm Comfort Rating
    European Norm Lower Limit Rating
    Stuff Sack
    yes, compression
    Stuff Size
    7.5 x 12in
    Claimed Weight
    [regular] 1lb 13oz, [long] 2lb
    Recommended Use
    summer camping
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Great Summer Bag for sea kayaking.

    • Familiarity: I've used it several times

    I used this bag Sea Kayaking on the coast of Maine in August. This bag can pack super small and was more than adequate for summertime temps. It stays comfortable in a high humidity environment. It comes with a compression stuff sack. A great bag. I highly recommend it.

    Great Summer Sleeping bag!

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

    This sleeping bag is an excellent bag for warm weather camping. It is small, compact, and most of all comfortable. Just make sure you're evenings don't dip below 55 degrees!

    Great Value

    • Familiarity: I've used it several times

    You can't beat this bag for the price. It's nothing fancy but it will keep you warm in mild temperatures and is compact enough and light enough to take backpacking so I couldn't recommend it any higher.

    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 weighs under 2 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!

    Compact and lightweight

    • Familiarity: I've used it several times

    The bag compacts nicely and can fit into a smaller, standard backpack. The temp rating is pretty accurate. Temp dropped down into the mid 30s so it was chilly but by morning I was very comfortable in it.

    great quality for price

    • Familiarity: I've used it several times

    temperature rating is pretty exact.. took with on a climb of Middle Teton and it dropped to 40 degrees, so was a little chilly-- but packs small and well made

    Packs small

    • Familiarity: I've used it several times

    I have been using this when going up to Lone Peak and it has been great I can pack a smaller bag with my climbing gear and camping gear and not have to carry the bulk of a large pack all the way up there.

    A nice piece of kit!

      If you camp in moderate climates like Southern California, this is your "go to" sleeping bag. In warm weather, you can use it on its own. If it dips down below 50, then use your clothing to layer on added warmth. It packs down nicely and doesn't tip the scales. You can't beat that for the price.

      Really wanted to like this!

      • Familiarity: I returned this product before using it

      I give this 5/5 for quality and feel... but, only 3 for fit. Several other reviewers say this fits 'slim' and they weren't kidding. This bag just doesn't have the girth at the shoulder or upper leg that my BA bags do. I felt really constricted when I tried it out. I'm 6'-0, medium build, and 190lbs. Length was good though - even roomy in the length, but just way too tight across the shoulders. I'm a side sleeper and there was little room to turn over, or bend a leg. That said, the quality of the bag seemed very good. Well made, soft, warm, and light. I really liked the bright, cheery red. Bag was very easily stuffed back into its compression sack, and is light weight. I wanted to keep this because I like Marmot products, but the size just isn't big enough for someone with a 42 jacket size or over.

      Sweet and Simple

      • Familiarity: I've used it several times

      I use this bag along with my eno hammock system.
      It packs down small, it's lightweight and keeps me cozy on Kentucky summer nights.
      Great value for summer backpacking.

      I have read complaints about the stuff sack, but I have not experienced any issues. If you take the time to fold the sides in and roll the bag up tightly, it fits fine in the provided stuff sack.

      I do wish it were a full zip bag so that I could open it all the way up.

      Economical, compact, light summer bag

      • Familiarity: I've used it several times

      Purchased this bag in a regular size as it was all they had at the local store. Reg fits to 6'0" which is an inch shorter than me, but its still a workable length. Small girth bag (60"/152cm), don't expect lots of room to move around in. I was in about 45F/7C temps overnight at 6,000'. With fleece pants and a long sleeved light shirt I was very comfortable. Not much loft, so the bag packs down very small and is very light. I don't have any issues at all getting it back into the stuff sack, I just stuff it in feet first without rolling it. I'm happy enough with it, exactly what I was looking for in a Summer bag at a really good price. ($89.00CDN)

      small but good

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

      I was deciding between this and the Marmot Maverick. Ultimately the weight won over. With that being said, it is sized compact. It fits my 5ft 7, 170 lb frame but with out a lot of wiggle room, but it does fit. In reality it will be mostly used unzipped and used as a quilt so the fit if fine for me.
      My biggest complaint is the stuff sack. I can't fit the bag back into the stuff sack it is so small. The stuff sack even has compression straps which could be used if it fit inside the stuff sack in the first place. The stuff sack is what dropped it a star.
      I don't expect any issues with warmth because its a summer bag and won't be using it for cold nights.
      So a nice, well priced, lightweight bag that fits snugly and has a hideously small stuff sack.

      The bag EASILY fits into the stuff sack if you don't roll or fold the bag first. Instead, stuff the sleeping bag into the sack starting with the toe of the bag and just keep stuffing. It can be done in about 30 seconds.

      Does what it says

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

      When it says 45 degrees, it is exactly that. My mistake was to not check the temp at night when I used it. I'm pretty sure it dropped down to 35, so it ended up being a tough night. But layer up or pack a liner and you're set.

      Very light and compact. Well worth it.

      Completely agree, Ryan. Especially on the 45 degrees part- I got caught out in the wind camping this fall, it really took the temperature down overnight, and that was a less than comfortable night's sleep. Ah well!

      Great lightweight bag for travel

      • Familiarity: I've put it through the wringer

      I picked one of these up while on travel through the mideast this year, as I needed something that was fairly light, packed down, and wasn't too warm- turns out that this is a perfect bag for warmer climates (though not too warm, unless you just want to lay on top of it).

      It is very light and packs down well with the included stuff sack.

      For the price, not bad at all. A piece of Marmot gear that does what it says it will. I've been sleeping in this thing every day for a good 4 months now, and very happy with it.

      Unanswered Question

      I'm trying to figure out what marmot bags are zipper compatible for cuddles. What, if any, are fitting for this?

      Unanswered Question

      Trying to decide between this and the 55.. I have a 15 degree big agnes bag, which would be the better bet for a summer bag that would exclusively be for 50 degree + nights?