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Marmot NanoWave 25 Sleeping Bag: 25F Synthetic


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NanoWave 25 Sleeping Bag: 25 Degree Synthetic

When weight and space are at a premium on alpine missions or kayak tours, bring along the Marmot NanoWave 25 Sleeping Bag: 25 Degree Synthetic to get a good night's sleep throughout your travels. Lightweight and durable, the NanoWave 25 doesn't take up much space or weight in your pack so you can easily bring it along on any of your cool to cold weather missions. Spirafil high loft insulation keeps you comfortable as you sleep even if it happens to get wet from ground moisture and the draft tube blocks cool breezes from sneaking through the full-length, two-way zipper. Unzip the bag all the way to create a blanket for more versatile use and at the end of your adventure, wash the bag and hang it up to dry with the two hang loops so it is ready for your next trip out in the backcountry.

  • Packable sleeping bag for cool weather trips into the backcountry
  • Spirafil insulation keeps you warm even if it happens to get wet
  • Full-length zipper extends pas the toe box for higher versatility
  • Snagless draft tube keeps the cold breezes from sneaking through
  • Hang loops add convenience for airing out or drying after use
  • Compression stuff sack packs the bag down small for easy carrying
  • Item #MAR01RQ

[face fabric] 50D polyester, [lining] 50D polyester
full-length, end of foot box extension
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
Fill Weight
[regular] 1lb 9oz, [long] 1lb 12oz
European Norm Comfort Rating
European Norm Lower Limit Rating
Stuff Sack
Stuff Size
10 x 14.5in
Claimed Weight
[regular] 2lb 8oz, [long] 2lb 15oz
Recommended Use
backpacking, mountaineering, weekend camping, winter camping
Manufacturer Warranty

Tech Specs

What do you think about this product?


>Rating: 3

Over rated

This is a well made bag, as you'd expect from Marmot, and I think it would be a great summer bag. But, I just spent 5 nights in Northern Maine thinking that the 25 degree rating on this bag was to low. The night temps were in the upper 30s to low 40s, and I was cold even with socks, long johns, and fleece top. The girth was tight enough around my shoulders so that I was compressing the insulation. That had to have an effect.

>Rating: 4

25 degree rating seems generous

I've used it several times

This an alright sleeping bag, I ended up sleeping in my car with this bag for 5 days. There were times the temperature was around 30-32 degrees Fahrenheit outside. Using this bag alone wasn't really doing the job, and I ended up using my quilt on top of this. The tag on the inside does say the 25 degree range is more along the lines of life saving territory. I was hoping for a warmer bag. I'd say this bag would be awesome during spring/summer. On the plus side it does pack down fairly small, and is lightweight.