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Details

  • Slightly wider, winter mummy cut is roomy without loosing thermal efficiency
  • Proprietary, welded Lamina construction enhances loft and eliminates cold spots
  • Zoned insulation maximizes warmth where it's needed most
  • Thermal.Q insulation has outstanding compressibility, maintains excellent loft and insulates even when damp
  • Ergonomic draft collar seals warmth in, keeps cold out
  • Face gasket and tailored hood comfortably block drafts at the hood opening and seal in warmth
  • Comfort footbox follows natural foot position for maximum warmth and comfort
  • Durable, lightweight nylon shell with DWR treatment repels water
  • Soft polyester lining wicks away moisture
  • Full length #8 zipper with double sliders for versatile ventilation
  • Zippered pocket at shoulder for storage
  • Nylon compression stuff sack and mesh storage bag included

Imported.

Many sleeping bags are rated for temperature by an independent testing protocol, the European Norm (EN) 13537. Each bag gets two ratings: a Comfort rating and Lower Limit rating. The Comfort rating is the lowest temperature at which the bag will keep the average woman (or "cold sleeper") comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep an average man (or "warm sleeper") comfortable. Everyone's body and sleep comfort is different, so EN Ratings are merely a guideline to help you compare products.

View all Mountain Hardwear Men's Sleeping Bags

REI membership

Specs

Best Use Backpacking
Temperature Rating (F) -30 degrees Fahrenheit
Temperature Rating (C) -34 degrees Celsius
Weight
Long Left
5 lbs. 7 oz.
Regular Left
5 lbs. 1 oz.
Shell Ripstop nylon
Zipper Location Left
Insulation Type Synthetic
Fill Thermal Q polyester fibers
Lining 40-denier polyester taffeta
Sleeping Bag Shape Mummy
Fits Up To (in.)
Long Left
78 inches
Regular Left
72 inches
Shoulder Girth (in.)
Long Left
68 inches
Regular Left
66 inches
Hip Girth (in.)
Long Left
66 inches
Regular Left
62 inches
Stuff Sack Size 10 x 18 inches
Stuff Sack Volume 23 liters
Compressed Volume Unavailable
Gender Unisex
Rated 2 out of 5 by from Not up to par. Bought this last spring. Used this all year since. First the bad. The thermal rating is a lie. This bag is minimum 10°F. Don't try to use this bag below 0°F. The zipper is trash. Kept constantly getting stuck hard till I often gave up. Come winter i needed it closed. The constant fighting was tedious with it averaging 45 minutes to zip or unzip. Finally one day the zipper jammed hard and wouldn't move. I forced it and the threads ripped from the bag instead. Now the good. This bag does excellent about retaining warmth even when wet. High humidity or camp flooding didn't stop this bag from functioning. Great loft and and good shell with opening over flaps. Don't recommend this bag. They need to fix the zipper issue and add more loft.
Date published: 2016-12-16
Rated 1 out of 5 by from Caution - Not a warm bag I bought this bag for a 8 day pack trip into YNP (last week)-the temperatures at night were around 28 degrees just enough for a heavy frost each morning. My feet were like ice I put my Patagonia down coat at the bottom of my bag to keep my feet warm and wore expedition weight long underwear, a fleece vest & wool hat to keep warm. I would hate to have it in -28degrees. Also the zipper constantly jams...Bag is going back...............
Date published: 2016-08-29
Rated 3 out of 5 by from Labor day sale Just got it during the labor day sale. I am in southern Illinois and it is still in the high 80s. When I test it a much lower temperatures I will review further. For now though, it looks like it is a quality bag. Is is as heavy as you would think, no scale but it feels like 5lbs. There is a lot of insulation in it, which hopefully will do the job. It comes with a mesh storage sack and a compression sack. I was ablessed to get it packed down to 15"x12", but that said it could be the 18"x10" listed.
Date published: 2016-09-08
Rated 3 out of 5 by from Painful How long have we been using zippers? And we still... Managed to build a bag that the zipper gets jammed up ever two inches. Ripped this bag Into three pieces one night, makes a good dog bed. Bought a better bag which the zipper works
Date published: 2017-03-04
  • y_2017, m_7, d_23, h_2
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  • REVIEWS, PRODUCT

Which compression sack would be recommended for this bag?

Asked by: Hillbilly257
Any compression sack that has a capacity of 23 liters or larger will work for the Lamina Z Bonfire Sleeping Bag​.
Answered by: REIservice
Date published: 2016-08-31

What size compression sack would be recommended for this bag?

Asked by: Hillbilly257
  • y_2017, m_7, d_23, h_5CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
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  • co_hasquestionsanswers, tq_2
  • loc_en_US, sid_895129, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_rei-inc
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 156ms
  • QUESTIONS, PRODUCT
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Please select a color/size.

Reviews

Rated 2 out of 5 by from Not up to par. Bought this last spring. Used this all year since. First the bad. The thermal rating is a lie. This bag is minimum 10°F. Don't try to use this bag below 0°F. The zipper is trash. Kept constantly getting stuck hard till I often gave up. Come winter i needed it closed. The constant fighting was tedious with it averaging 45 minutes to zip or unzip. Finally one day the zipper jammed hard and wouldn't move. I forced it and the threads ripped from the bag instead. Now the good. This bag does excellent about retaining warmth even when wet. High humidity or camp flooding didn't stop this bag from functioning. Great loft and and good shell with opening over flaps. Don't recommend this bag. They need to fix the zipper issue and add more loft.
Date published: 2016-12-16
Rated 1 out of 5 by from Caution - Not a warm bag I bought this bag for a 8 day pack trip into YNP (last week)-the temperatures at night were around 28 degrees just enough for a heavy frost each morning. My feet were like ice I put my Patagonia down coat at the bottom of my bag to keep my feet warm and wore expedition weight long underwear, a fleece vest & wool hat to keep warm. I would hate to have it in -28degrees. Also the zipper constantly jams...Bag is going back...............
Date published: 2016-08-29
Rated 3 out of 5 by from Labor day sale Just got it during the labor day sale. I am in southern Illinois and it is still in the high 80s. When I test it a much lower temperatures I will review further. For now though, it looks like it is a quality bag. Is is as heavy as you would think, no scale but it feels like 5lbs. There is a lot of insulation in it, which hopefully will do the job. It comes with a mesh storage sack and a compression sack. I was ablessed to get it packed down to 15"x12", but that said it could be the 18"x10" listed.
Date published: 2016-09-08
Rated 3 out of 5 by from Painful How long have we been using zippers? And we still... Managed to build a bag that the zipper gets jammed up ever two inches. Ripped this bag Into three pieces one night, makes a good dog bed. Bought a better bag which the zipper works
Date published: 2017-03-04
  • y_2017, m_7, d_23, h_2
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_4
  • loc_en_US, sid_895129, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_rei-inc
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 166ms
  • REVIEWS, PRODUCT

Questions & Answers

Which compression sack would be recommended for this bag?

Asked by: Hillbilly257
Any compression sack that has a capacity of 23 liters or larger will work for the Lamina Z Bonfire Sleeping Bag​.
Answered by: REIservice
Date published: 2016-08-31

What size compression sack would be recommended for this bag?

Asked by: Hillbilly257
  • y_2017, m_7, d_23, h_5CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_2
  • loc_en_US, sid_895129, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_rei-inc
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 156ms
  • QUESTIONS, PRODUCT