Free 2-Day Shipping on Orders Over $50

Detail Images

  • Mountain Hardwear - Lamina Z Sleeping Bag: -30 Degree Synthetic -

Current Color

  • Mountain Hardwear - Lamina Z Sleeping Bag: -30 Degree Synthetic -

Mountain Hardwear Lamina Z Sleeping Bag: -30 Degree Synthetic

Temporarily Out Of Stock

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

Can't wait? Consider one of the other Synthetic Sleeping Bags we have in stock.

View Similar Products

7 Reviews


Feel the fire after a cold day.

The Lamina Z Bonfire Sleeping Bag is Mountain Hardwear's warmest synthetic bag, built for winter camping trips in the alpine. Its unique Lamina construction welds the water-resistant shell to Thermal.Q insulation for better protection against moisture. Zoned insulation places more warmth where you want it, and less where you don't need it. Every bag in the Lamina collection is lighter and more compressible than other down bags of the same temperature rating.

Mountain Hardwear cut the Lamina Z Bonfire into a slightly wider mummy shape to better accommodate expedition clothing. Despite its wider fit, the Bonfire has a snug, tailored hood with a face gasket to protect your head from harsh winds. It has an ergonomic draft collar down the full-length zipper, and the footbox is bigger for more comfort.

  • Lamina welded construction
  • Thermal.Q zoned synthetic insulation
  • Comfort mummy fit
  • Tailored hood with face gasket
  • Ergonomic draft collar
  • Full-length zipper
  • Comfort footbox
  • Stuff sack
  • Item #MHW00MF

Tech Specs

[face fabric] 30D nylon ripstop, DWR treatment, [lining] 40D polyester
Thermal.Q (100% polyester)
Max User Height
[regular] 6ft, [long] 6ft 5in
Shoulder Circumference
[regular] 66in, [long] 68in
Hip Circumference
[regular] 62in, [long] 66in
Foot Circumference
[regular] 42in, [long] 45in
Bag Length
[regular] 78in, [long] 84in
Draft Tube
1 shoulder
Stuff Sack
Stuff Size
10 x 18in
Claimed Weight
[regular] 5lb 1oz, [long] 5lb 6in
Recommended Use
backpacking, mountaineering, winter camping
Manufacturer Warranty

Tech Specs

  • Reviews
  • Q & A

What do you think about this product?

Have questions about this product?

POOR zipper POOR warranty service

  • Familiarity: I've used it several times

A zipper should NOT fail within the first NINETY days of sleeping bag ownership. BEWARE of Mountain Hardwear sleeping bags UNLESS you do not care if the zipper works. warranty experience associated with order number b2733821916 caused me to believe that I was dealing with a customer hostile organization such as Bank of America.

Extremely bulky

    Received this bag and had to return it. Could not believe how huge it was, even in the stuff sack. Physically would not fit in my 65L overnight pack. Like, seriously huge. Went with down instead. Aside from the size, it seemed well made and like it was probably very warm.

    Additional Bag Information

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

    Apparel Fit: Regular-Sleep Bags
    Weight: 5 lb 1 oz / 2.29 kg
    Bag Shape: Mummy
    Bag Loft: 9 in / 23 cm
    Bag Stuff Size: 10 in x 18 in / 25 cm x 46 cm
    Inside Length Regular: 78 in / 198 cm
    Hip Girth Regular: 62 in / 157 cm
    Foot Girth Regular: 42 in / 107 cm
    Shoulder Girth Regular: 66 in / 168 cm

    heavy, but worth it

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

    Got this bag because most of what I intend on doing in the winter months is towing or sledding my gear in, so weight is not as big a factor. Super warm and comfortable, and the 10x18 stuff size is pretty small all things considered (winter bag, synthetic, etc...).

    Very warm.

    • Familiarity: I've put it through the wringer

    This bag is, as others have stated, a little on the heavy side and bulky even when compressed down as small as it can go. For winter backpacking, you'll need a very large backpack, and it will take up most of the space inside of it... But it's worth it because the bag is very warm and cozy. For the price, this sleeping bag is highly recommended. I think that the advertised temperature rating is accurate.
    I've been camping since buying it several months ago, and have been very warm every night, even through the snowy parts over Christmas and New Year, here in Salt Lake City, Utah.

    Tried 5, Picked 1

    • Familiarity: I returned this product before using it

    Okay, so my review is based solely on "fit" for a tall guy. I bought five winter sleeping bags to test- feel, comfort and dimensions and how durable the materials "felt". In the end I kept only 1 (Marmot CWM). As I sent the 4 others back and did not try them in actual sleeping situations, I cannot comment as to their performance in cold weather- only fit and initial comfort for a 6'6" guy who weighs 215 lbs.

    Okay, in terms of value (Bang per $), this is probably a 5 star bag. If I was more price conscious, I would have gone with this bag. Overall, felt like it would be warm, it was well constructed. Would have been nice had it been an inch or two longer, but most people aren't 6'6", so hard to cut them on that. A little narrow in the shoulder area if you've got wide shoulders like me, but overall, for the price, I would say this is going to be a great sleeping bag. It did come with a compression sack and I was able to get it down fairly small, but it's not going to fit in the bag compartment of a back pack, though good luck getting any subzero sleeping bag to fit there. This packs down to a size bigger than it's down counterparts, but for a couple of inches and maybe an extra pound, if $400 matters to you, that's how much you'll save by going with this bag. I didn't go with this bag, because I liked the comfort of the Marmot bag a bit more and I am not real price sensitive.