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Sleep comfortably on your backcountry outings.

The Mountain Hardwear Lamina 20-Degree Synthetic Sleeping Bag features Mountain Hardwear's proprietary Thermic Micro insulation. This insulation is high-loft and compressible like down, but it doesn't lose its warmth if it gets wet. The Thermic Micro is welded directly to the bag, which increases durability and eliminates the need for baffles, and decreases cold spots.

  • Comfort mummy cut designed to maximizes weight savings without being overly constrictive
  • Durable, lightweight nylon shell features a DWR treatment to repel dew, condensation, and frost
  • Thermic Micro synthetic fill is soft, compressible, and durable
  • Welded Lamina construction helps enhance loft and reduce cold spots
  • Soft polyester lining wicks moisture while you sleep
  • Comfort footbox follows your foot's natural shape for maximum warmth and comfort
  • Face gasket and tailored hood block drafts and seal in warmth
  • Full-length, #8 zipper features double sliders for versatile ventilation
  • Included nylon compression stuff sack and mesh storage bag make storage and transport a breeze

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Mountain Hardwear Lamina 20 Sleeping Bag: 20 Degree Synthetic

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Here's what others have to say...

4 5

Great bag.

  • Familiarity: I've put it through the wringer

Packs down pretty small. Temp rating seems accurate. Def a 3 season bag.

4 5

Nice Bag @ a good pricepoint.

  • Familiarity: I've put it through the wringer

It's very packable, light enough for backpacking and I haven't had any durability issues with moderate use over the last 3 yeras. However, it's never quite been warm enough on 20* evenings. Great bag for cool weather.

5 5

Toasty from head to toe

Very happy with the product, over night hikes on the Appalachian Trail in Virginia and working at a summer camp that always got super cold at night this thing was perfect, it packs up super small, is pretty lightweight, and fits in the bottom of my Osprey Pack no problem, I always sleep in a hammock and never had too tough a time getting situated in it. Note this, I am only 5'6 and got a normal size so I definitely could see getting the long just to have a little extra room because my feet are only a few inches from the end. All together happy with this bag

3 5

Great bag with a shitty zipper.

  • Familiarity: I've put it through the wringer

I took it on the Jonh Muir Trail and it performed well other than the zipper. I am astounded that such a great company would apply such a bad zipper design to such a good bag. The black piece of insulating material that lines the zipper gets caught almost every time i zip and unzip. I resorted to worming my way in and out of the thing every morning and evening. The hood and neck tighteners work well once you get to know how they operate. Im six feet tall and the long version fit me well. I was uncomfortable under 32 degrees.

3 5

Summer bag

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

I bought this bag knowing it wasn't the warmest but didn't know what to expect. It is very thin with minimal insulation. I tried using it with a thermarest solar ridge pad inside my house and was still chilly for at least 15 minutes. I don't see how this could possibly be warm if I had jeans and a long sleeve shirt indoors. On the positive side it is light. It packs fairly well but that could be due to lack of insulation. The material is extremely comfortable to touch but not support. If you plan to he a more winter bag grab a marmot tressle 30 for $20-$60. It will be bulkier but compresses very well for it's size and will actually keep you warm to 30 degrees (Fahrenheit) or possibly lower and will last longer.

5 5

Warm, Comfortable, Compact

  • Familiarity: I've used it several times

I have used this bag in the spring camping in Idaho, and from the Oregon California boarder to Southern California. I was surprisingly warm the first two nights and adjusted layers and my tent to stay comfortable. I have since then used the bag in the high of summer near Redfish Lake Idaho and was perfectly comfortable. I love that the bag is lightweight and compact. I have previously used an old down bag that is much heavier and larger. I would recommend this bag to anyone who enjoys camping in Spring, Summer and Fall.

5 5

great bag...even better with two...

  • Familiarity: I've used it several times

i picked up two of these a right zip and a left zip for myself and my girlfriend. super warm and roomy....kept us both warm and dry on a week long river trip. perfect at cooler temps with two people but a bit too warm with two people at around 45 degrees. the zipper does snag but not that bad if you know its going to.

5 5

Great for the money

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

It's a great synthetic bag for the money. Other reviewers are correct in saying that the zipper snags, but they are exactly what I was suspecting.

5 5

great sleeping bag!

  • Familiarity: I've used it several times

We went camping in Bruce Peninsula in Ontario, Canada. I enjoyed my sleeping bag so much and so is my sister. I bought mine in your web site and my sister too. Thank you so much!


4 5

Excellent so far

Just got this a few weeks ago. slept outside when it was in the 40's and with a few layers and no sleeping pad i was plenty warm and I hate being cold. also used it when it got in the high 50's and it wasnt too hot. Will be testing it when it hits the 30's this fall. If its still good in the 20's 30's I'll give it a 5. I would recommend this. Stuffs easily into the stuff sack too

5 5

Killer Value

This bag has to be one of the best deals. It packs down to a reasonable size, and doesn't weight too much.
A full length #8 zipper makes it compatible with most other sleeping bags if you want to zip them together.

This bag packs down to the same size and weight as a lot of 600-fill bags, but costs a fair amount less. If you're looking for an entry level sleeping bag that will be good for all around camping and a bit of backpacking, this is it for sure.
The draft tube does get caught in the zipper sometimes, but that's not different for any other sleeping bag so I am not making an issue about it

5 5

Excellent lightweight bag

On it's first outing the temperature went down to about 30 degrees and the bag kept me very warm. I have not had any problem with the zipper any more than any other bag I have owned. I am 5'11" and the bag fits great with just a couple of inches of extra room. At 3 pounds it was just the weight I wanted for my backpacking outings. The compression sack gets it down to a very small size.

5 5

Excited to use it!

I haven't tested it out yet, but it seems like quality material and it really does pack down quite nicely. I'm 5 ft. 9 inches and I fit in the regular bag, but not by much.

4 5

great for the money

Other reviewers noted that the zipper gets stuck, and yes it does got hung up, but its warm and light, so who cares if it takes an extra minute to zip up? I've used it in the low 30's and found it to be plenty warm, so at 3 lbs I'm very happy to get it at this price point.

4 5

nice budget bag if you want compression

This isn't a down bag but it still compresses well for a synthetic and has an AWESOME stuff sack included. Zipper snags a lot, but overall it's a great bag. I sleep cold so it's comfy to about 45 degrees for me. Also check out Kelty Light Year and North Face Cat's Meow as alternatives to see what suits you. I'm a skinny 6'1" and the long is really roomy for me...I could have gotten away with the regular.

5 5

great bag,soft and warm !

Great bag and it packs really small in your backpack !

5 5

Great bag

This is an excellent bag for 3-season camping. It's highly compressible and the I haven't had any problems with the zippers or draw-strings. It'll keep you warm on unexpectedly cold nights.

5 5

A great 20 degree bag for the money

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

I'm a broke college student buying my first set of backpacking gear, and this is a fantastic bag for the money.
The synthetic material appears to be made well. It's soft, warms up quickly (and stays warm, even when damp), and it compresses easily into the stuff/compression sack that is included. BOOM! $20 saved right there. And there's a large mesh bag for storage, which is nice. The face hole can be cinched down around you when the wind is blowing, and it blocks out drafts well. There's also a half-ring of soft material that's on the inner part of the face area that keeps your neck and shoulders nice and warm. There's a good deal of lateral space for your shoulders and hips, and being 5'3" I had some wiggle room for my feet at the end of the bag, which was nice yet surprising; I thought the bag would be lengthier. If you're taller than 5'6", you should go with the 'Long' bag, it'll be worth the extra space. On the downside, the zipper is a bit stiff, but it loosens up and isn't enough of a bother to knock a star off the rating. The only thing I'd do differently with buying this bag is order the left-hand zipper instead of right, and I'm right-handed. When using your strong hand to unzip, it seems easier to reach across rather than have T.Rex arms, no?
The bag was originally $180 and it has a lifetime warranty. It's a steal if you'll be using it for 3-season backpacking.

A great 20 degree bag for the money
5 5

Bargain Bag

Excellent price point for a quality bag. I've only used it once during a 3 day trip on Big Sur's Pine Ridge Trail but it worked out well. Temps dipped pretty low as we were camping deep in the valley under heavy tree cover - didn't get cold at all. Packs light and stays dry.

I am very interested in this bag. I would...

I am very interested in this bag. I would like to know if this sleeping bag is joinable with another lamina Mountain hardwear sleeping bag ? Thanks for your answer.

Responded on

Hi Isabelle,

Thanks for the question. You can certainly mate the Mountain Hardwear Lamina 20 Sleeping Bag with another Lamina model. I would just be sure that the Lamina you match it with is the same length and zipper number. Or, if you are going to keep the two bags mated, you could just go with the 2 person Megalamina 20.