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About Mountain Hardwear 34°F Lamina Z Spark Sleeping Bag - Mummy

Closeouts. Built with Lamina construction that helps maintain insulation loft and eliminate cold spots, Mountain Hardwear's 34°F Lamina Z Spark sleeping bag promises a warm, comfortable sleep in near-freezing weather. The well-designed footbox allows your feet to rest naturally, and the face gasket and hood help seal in warmth around your face and neck.


Specs about Mountain Hardwear 34°F Lamina Z Spark Sleeping Bag - Mummy

  • Insulation material: Thermal.Q 60 g/m²
  • Fill weight: 20 ounces
  • Temperature rating: 34°F / 1°C
  • EN Temp rating: 42°F /34°F /6°F
  • Shell material: 30 denier nylon ripstop
  • Lining material: 30 denier nylon ripstop
  • Fits to: 6'
  • Length: 78"
  • Stuff size: 12x6"
  • Stuff sack: Yes
  • Storage sack: Yes
  • Weight: 2 lb. 3 oz.
  • Recommended use: Backpacking
  • Made in China
  • Visit our Sleeping Bag Guide
  • US shipments only


Do you own this product? Write a review and help others with their buying decisions!

5.000000 5 Overall Rating: 5 Based on 1 reviews

Most Helpful 5-Star Review

Nice and warm!
Verified Buyer Reviewed by AKCate from Texas on Thursday, September 6, 2018
Kept me warm and dry. Woke up to water in my tent (whole different issue....) but even with the end of my bag wet, I was still warm.
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Question & Answer

Questions about this product? Get answers from community and staff experts.

  • “Specs don't give the chest circumference dimension of this bag. Important to determine if it is too restrictive.”
    Asked by Swaha from Colorado on 7/7/2018 5:24:09 PM
    • We apologize, but this item is sold out. We suggest signing up for the My Updates as the best way to monitor incoming products. You will receive email notifications of our newest stock items.
      Answered on 7/12/2018 10:30:25 AM by Product Specialist from Sierra Trading Post

About Mountain Hardwear

Starting back in 1993, a small group of outdoor industry mavericks broke away from the pack to follow a less-traveled path. From the very beginning, the primary goal of Mountain Hardwear was to create an outdoor gear brand with a sharp focus on technology-driven design, superior performance and hardcore reliability. The result of this function-first mentality has been an array of incredible Mountain Hardwear jackets, clothing, tents, backpacks, sleeping bags and accessories. Today, after more than two decades of industry-leading innovation, Mountain Hardwear continues to set new benchmarks for dependability in the toughest conditions on the planet.