Marmot  NanoWave Sleeping Bag

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Great for bike touring, overnight kayak trips and lowland camping in warmer climates, the compact Marmot NanoWave 45 sleeping bag will have you well-rested for the adventure that tomorrow brings.

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Features

  • Synthetic SpiraFil high loft insulation and blanket construction prevent cold spots and work together to keep you comfortable all night
  • Blend of 3-denier, conjugated spiral hollow fibers and 1-denier polyester fibers provides loft, warmth and compressibility
  • Polyester taffeta shell is protected with a Durable Water Repellent finish that causes moisture to bead up and roll off
  • Brushed lining in chest and footbox for added warmth and comfort
  • Full-length zipper; zipper guard runs the entire length of the draft tube to prevent fabric from getting caught in zipper
  • No more midnight drawcord fumbling—smooth, flat upper cord and hard, round lower cord make top opening adjustments easy
  • Marmot NavoWave +45°F Sleeping Bag includes a compression stuff sack
Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.

Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
View all Marmot Camping Sleeping Bags

Technical Specs

Best Use

Camping

Tested Lower Limit

49.6 degrees (F) - EN

Tested Comfort

56.1 degrees (F) - EN

Temperature Rating (F)

45 degrees (F)

Temperature Rating (C)

7 degrees (C)

Shell

Polyester taffeta

Zipper Location

Left

Insulation Type

Synthetic

Fill

Polyester fibers

Lining

Polyester taffeta

Sleeping Bag Shape

Rectangular

Stuff Sack Size

6 x 11 inches

Stuff Sack Volume

5 liters

Compressed Volume

Unavailable

Gender

Unisex

Reviews
65 reviews with an average rating of 4.4 out of 5 stars

Ratings Snapshot

Product Rating

49 out of 55 (89%) reviewers recommend this product

Review this Product

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Most Helpful Favorable Review

5 reviews with an average rating of 5.0 out of 5 stars
Packs small and perfectly rated.
Hiker Upper
11 years ago
I've used this sleeping bag 4 times now and it's an absolute marvel of modern technology. It's warm, it's comfortable. The bag is a mummy shape so your foot-space is going to be limited anyway but that is to be expected. I'm 6'2" tall and the Long size was the perfect size for me. It packs inside of my backpack and is about 1 liter and a half. Very tiny and less than a kilo of weight. The only drawback is the bright red color. Very loud and obnoxious. I try to keep my equipment more subdued but the quality/size/price of this bag was too good to pass up. I'm very pleased with this purchase.
Hiker Upper
Los Angeles, California
38 people found this review helpful

Most Helpful Critical Review

5 reviews with an average rating of 2.0 out of 5 stars
Not warm at all
robynjolson
12 years ago
I took this backpacking in Western Washington in August. The forecast said we would have a low of 50. I froze in this bag. I ended up wearing every piece of clothing I brought plus putting a garbage bag over the end to help keep in some body heat. I am returning it and getting a more expensive (down) bag that is rated lower and weighs the same.
robynjolson
Bremerton, WA
14 people found this review helpful
Hiker Upper
Los Angeles, California
Rated 5.0 out of 5 stars

Packs small and perfectly rated.

11 years ago

I've used this sleeping bag 4 times now and it's an absolute marvel of modern technology. It's warm, it's comfortable. The bag is a mummy shape so your foot-space is going to be limited anyway but that is to be expected. I'm 6'2" tall and the Long size was the perfect size for me. It packs inside of my backpack and is about 1 liter and a half. Very tiny and less than a kilo of weight. The only drawback is the bright red color. Very loud and obnoxious. I try to keep my equipment more subdued but the quality/size/price of this bag was too good to pass up. I'm very pleased with this purchase.

Yes , I recommend this product
Helpful?
Sean V
Chicago, IL
Rated 5.0 out of 5 stars

Definitely worth getting

12 years ago

It's a really solid little sleeping bag. The included compression sack packs it down to a little larger than a football. When camping with it recently, there was an unexpected cold snap (just above freezing) and the bag performed really well and I was able to sleep comfortably through the whole night. I was wearing almost all the clothes I had packed though. There is no brushed fabric on any parts of the interior of this bag, like it says in the description online. Inexplicably, the EN 13537 temperature ratings are missing as well, even though they were included with the bag when I purchased it. They are 56.1 F (13.4 C) for comfort, 49.6 F (9.8 C) for lower limit, and 27.1 F (-2.7 C) for extreme.

Yes , I recommend this product
Helpful?
ColdWeather USA
USA
Rated 5.0 out of 5 stars

Used 40 days in a row - held up great

12 years ago

I used this bag to walk the Camino Frances in Spain for 30 days and then used it to sleep in an RV in Iceland for 10 days. The bag held up well. I did use a bug resistant liner. The bag is light and packs into a stuff sack that is included. I did not struggle to get the bag in the stuff sack. The only thing to note is this bag does not come with a loose fitting storage sack. It only comes with its own stuff/compression sack. I liked my choice of this bag.

Yes , I recommend this product
Helpful?
AZscouter
Phoenix, AZ
Rated 5.0 out of 5 stars

Good light weather bag

12 years ago

I backpack or camp around two times a month in many deferent environments. I have a 20 degree down bag that I have used for 4 years and found that sometimes it is just too hot. That is why I bought the Marmot NanoWave 45 Sleeping Bag. I have only used it 4 times so far and it has worked out well for me. One of the nights was in the upper 30s and I stayed conferrable. I got the bag in the long size because I'm 6'2" and 190 lb. I found it to be a good fit.

Yes , I recommend this product
Helpful?
Vish
Sacramento, CA
Rated 4.0 out of 5 stars

Summer Bag

11 years ago

Pro's : light weight; definitely rated properly for temp, packs super small and light. Con's : not a full zip bag; foot bed is narrow love this bag because it is so light weight. It is NOT hard to put into the compression sack at all! I do think that getting out the first time was hard because Marmot decided to roll it into the compression sack instead of stuffing it. wish it had a full zip. Otherwise perfect summer / spring bag.

Yes , I recommend this product
Helpful?
GeologyGSU
Statesboro, GA
Rated 5.0 out of 5 stars

Fantastic Bag!

10 years ago

I've had this guy for about 1.5 years, and it has yet to disappoint. I purchased the long version, and it's plenty roomy for me at 6'1". The bag is super compact and lightweight-- I can compress it down to about 5"x8". I live in the Georgia, and use this as a 3-season bag. If temps get below 50 I'll throw on my socks and long undies. Below 40 I'll add a wool sweater and sweats, and I'm still good to go. If you do at least half of your camping in moderate climates this is a no-brainer. And you cannot beat the price!

Yes , I recommend this product
Helpful?
PipPipHooray
San Antonio, TX, United States
Rated 4.0 out of 5 stars

Texas weather hammock camping

11 years ago

I bought this for when I go hammock camping, I like how small it compresses and the fact that its a mummy bag that way it will fit on my pad and be a good fit inside the hammock. I opted for this bag cause I am a warmer person and I do happen to live in quite a warm state and it doesn't get much colder than 20 degrees F.

Yes , I recommend this product
Helpful?
Annapolis Al
Annapolis, MD
Rated 5.0 out of 5 stars

Great cool weather bag

10 years ago

I bought two of these bags for a recent trip to the bottom of the Grand Canyon. Temperature ended up being around 60 deg F on the night we camped. I was comfortable in the bag without socks and a light T-shirt and shorts. My wife was a bit chilly even with socks and a long sleeved shirt so I guess it is true that men are more resistant to cold. So, if I had to do it again I would definitely do this bag for me and maybe a bit heavier bag for my wife. The size and weight were perfect for fitting in my back pack along with compact air mattresses and all of my other gear. I also like the relatively low price. I would definitely buy this product again.

Yes , I recommend this product
Originally posted on marmot.com
Jared a Guy
Little Rock, AR, United States
Rated 5.0 out of 5 stars

Great deal, light and versatile

10 years ago

I've used this bag a few dozen times over the past year and have come to really like it. I just slept at 45 degrees and was just warm enough wearing some thermal underwear and socks. Anything warmer it's a dream. I never got the sleeping bag back into the compression sack, but it's so small I haven't really needed to compress it, just put it in a stuff sack. I think it's a great deal.

Yes , I recommend this product
Helpful?
Lawton
Virginia
Rated 3.0 out of 5 stars

Cool concept, too tight

7 years ago

Love the weight to insulation ratio for this bag. Great price! Nice, comfortable material. Decently warm. But very tight for me all the way along my body, and I'm not huge (180lbs) - felt like my knees were pressed hard against the sides and like a straight jacket if I tried to zip it up with my arms inside. That tightness reduced the loft at my knees, elbows, and shoulders, which made it colder. I wish Marmot made this a bit wider - if they did, even at a few ounces heavier, it'd be an awesome bag. But my tiny 100lb girlfriend loves it. It's probably going to get so I can get a roomier bag.

Yes , I recommend this product
Helpful?
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