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Wet winter weather? This is your bag.

Whether you're spending the night in a snow cave or heading out on a multi-day ski tour, trust the Mountain Hardwear Lamina -15 Degree Thermal Q Sleeping Bag to keep you warm and cozy. Lamina construction attaches the insulation directly to the shell fabric, which eliminates the cold spots caused by standard baffle stitching. Plus, the shell fabric's DWR finish and the Thermal.Q synthetic insulation make the bag an ideal choice for damp winter conditions.

  • -15°F temperature rating makes this bag ideal for winter camping excursions
  • Thermal.Q synthetic insulation is highly compressible, maintains its loft, and insulates better than down if it gets wet
  • Ripstop nylon shell has a DWR finish for reliable wind and water resistance
  • Winter mummy cut is slightly wider for greater comfort in winter conditions
  • Lamina construction attaches the shell directly to the insulation, eliminating cold spots caused by the stitching in typical baffle construction
  • Comfort Footbox accommodates the natural position of the foot for improved warmth and comfort
  • Polyester lining is soft and wicks away excess moisture
  • Face gasket and a snug-fitting hood keep cold drafts out and warmth in
  • Full-length zipper with double sliders offers ventilation options
  • Zippered pocket at the shoulder keeps essentials close at hand
  • Stuffs into an included 9 by 18 inch stuff sack for compact transport
  • Includes storage sack

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Here's what others have to say...


-20F and Adaquate

  • Familiarity:I've used it several times

If I would have read these reviews, I would have shopped elsewhere. I went winter camping in the dead of a frigid Michigan March adventure. I was wearing my fleece pants, wool socks and a wicking T and was on the teetering edge of comfortable, but never less than that. Snow, Thermarest, biv bag (keep the snow out), bag. Went to bed @ -10F and by the dead of night a genuine -20F in my tent and still warm.

-20F and Adaquate

Great bag for 15 F nights

  • Familiarity:I've used it several times

Took this bag up to the Gates of the Arctic in September for a week of backpacking. Night temps were somewhere around 15-20 F. I wore wool base layers just to wick away any sweat and I was super comfortable. I'm 6'2'' and the long allowed room for extra clothes/ water bottle at the foot. The bag breathes great and the water resistant material prevented any dampness on the inside. Getting a compression sack would definitely help when packing it up.

Having said all that, I would be hesitant to test this at -15 F. Sleeping bag ratings are set for survival, not comfort in my experience.

Great bag for 15 F nights

Definitely not -15 rated

  • Familiarity:I've used it several times

When I pulled this bag out of the box, I was super excited. The weight and loft and fit and everything made it seem like it was going to be a cozy extra warm sleeping bag. I used it for 5 nights in Alaska during early Sept where the temp dipped down just below freezing every night. I was shocked to find myself rummaging through my pack for my down puff jacket and pants. It wasn't like I was on a bad pad either. I was sleeping on a Thermarest with an insulation R-value of 4. I bought this because I wanted to add a synthetic bag to my gear. Since I was going to be 90 miles from a road, I wanted the piece of mind of a synthetic in case everything got soaked and I'd still have insulation. The other reason is because I'm planning to do a few nights of winter camping in sub zero weather. I have no confidence in this bag after my experience and it is being returned. I'll either go with a different bag or just wear my full down puff gear in my 15 degree rated Big Agnes down bag. I would have rated this as a 1 star, but I thought the cut was comfy and the construction seemed really good.

Interestingly I had the exact opposite experience. Went on a ski trip to the Tordrillo mountains in May with a 15 F Big Agnes down bag. The temp dropped to roughly 20-30 F at night. I had to sleep with baselayers, fleece pants and sweater, and a puffy jacket in order to be at the slightly uncomfortably cold level. I got the Lamina -15 F bag for a trip to the Gates of the Arctic this September and with just wool baselayers, I was super comfy. Temps were probably also around 20 F.

That being said, I agree that this may not be the bag for much less than 0 F.


Very Good, But Not a Winter Bag

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

Temperature ratings are a tricky thing. This is listed as a -15f bag, but I would estimate the temperature that one can sleep comfortably at between 5-10f (above 0). I used it two nights in the Boundary Waters Canoe Area of Minnesota in February. Both nights the temperature was around 0f; I was in a tent on two sleeping pads - one closed cell and one 1.5" inflatable. The first night I slept in regular weight long underwear and was cold all night - not "I'm going to die" cold, but not comfortable, either. The second night I wore regular weight AND expedition weight long underwear and was a little more comfortable, but still not cozy.
The bag is well made. The shell repels moister nicely, the zipper is pretty good, and it has a nice, roomy fit (I was able to lie on my side and bring my knees in). I'm 5'11" and my feet touch the end of the bag when I stretch out. My one complaint with the design is that the draft collar does not close, so when you move, warm air escapes and cold air comes in. A velcro closure would be a huge help.


Great Bag

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

This is a great bag, I used it for the first time last night in temps around 10-20 degrees. very comfy and the draft tubes work extremely well. The only con is the sack it comes with is almost too small. It is very difficult to pack the bag in the little 9" dia sack. I would strongly suggest getting a compression sack. Other than that, this bag is extremely warm and relatively light weight.

Great Bag

Beautiful Night's Sleep

  • Familiarity:I've used it several times

Have utilized several times this winter of (2013-14) thus far -- all applications on the CT AT -- and have nothing but kudo's to offer for my satifaction regarding performance and functionality regarding Winter Camping needs .... Extremely satisfied .... Beautiful product.


Warm, almost too warm ;-)

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

I took this on my first ever winter camping trip a week ago. It fit in the bottom of my old LLBean backpack in a large land and sea compression sack. I started the night in my full base layer and halfway through the night I stripped off my top layers and stuffed them in the bottom of the bag because I was sweating. The night had started off with light snow and turned clear, the Lowest temp was around +15F I am quite pleased with it.