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  • Mountain Hardwear - Lamina Z Spark Sleeping Bag: 34 Degree Synthetic - Flame
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  • Mountain Hardwear - Lamina Z Spark Sleeping Bag: 34 Degree Synthetic - Flame

Mountain Hardwear Lamina Z Spark Sleeping Bag: 34 Degree Synthetic

$158.95 - $178.95

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    4 Reviews


    Make cold spots a thing of the past.

    Mountain Hardwear designed the Lamina Z Spark 34-Degree Synthetic Bag to virtually eliminate cold spots, so you don't wake up cold in the middle of the night. The bag's welded Lamina construction prevents the Thermal.Q insulation from migrating and leaving you with cold spots, and the strategic insulation mapping concentrates warmth around your core and feet, helping your most important and vulnerable spots stay warm and comfy.

    Condensation can also leave you chilly, so Mountain Hardwear finished the Spark's Lamina Revamp nylon shell off with a DWR treatment to repel water. The face gasket and tailored hood stop heat from escaping from out the top of the bag, and the comfort mummy shape and footbox provide a slightly roomier fit for better insulation and more room to move.

    • Lamina Revamp ripstop nylon shell with DWR treatment
    • Polyester lining
    • Thermal.Q Thermic Micro synthetic insulation
    • Welded Lamina construction
    • Comfort mummy shape
    • Full-length zipper
    • Face gasket and tailored hood
    • Comfort footbox
    • Zippered shoulder pocket
    • Item #MHW00ML

    Tech Specs

    [face fabric] Lamina Revamp ripstop (100% nylon), [lining] 40D polyester
    Thermal.Q (60g)
    Max User Height
    [regular] 6 ft, [long] 6 ft 6 in
    Shoulder Circumference
    [regular] 63 in, [long] 65 in
    Hip Circumference
    [regular] 59 in, [long] 64 in
    Foot Circumference
    [regular] 41 in, [long] 43 in
    Bag Length
    [regular] 78 in, [long] 84 in
    Draft Tube
    European Norm Comfort Rating
    42 F
    European Norm Lower Limit Rating
    34 F
    Stuff Sack
    Stuff Size
    6 x 12 in
    Claimed Weight
    [regular] 2 lb 1 oz, [long] 2 lb 3 oz
    Recommended Use
    camping, backpacking
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

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    Temp rating was right on.

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

    I wanted a bag that would be warm enough as I sleep cold, but not too hot as I was camping in UT July and it can stay fairly warm at night.
    This bag held up to the 34 degree rating perfectly, I did have to sleep in my down jacket and socks to be totally comfortable, but that is pretty normal again, as I sleep cold personally.
    My favorite things about this bag is that for the temperature rating, it packed down super small to fit into a 40L bag without taking too much space up, about 6" long with a circumference of about 11" even though the specs say 12". It was a light as it says in the specs too, which was awesome and left plenty of room in my pack for food, clothing, and of course some beers!

    I would definitely recommend this sleeping bag for spring and summer camping.

    nice small packing synthetic bag

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

    I took this bag backpacking in Glacier over the summer. I am 6 ft and this was the regular size. Wish i had the long. Would have been more comfortable. Kept me warm in temps around 40 but 30 would have been too cold for me. I recommend this to people looking for a more entry level. Great value!

    nice small packing synthetic bag

    great bag, beware of published specs

    • Familiarity: I've used it several times

    I purchased the Lamina Z Spark to have around in addition to my MH Ratio 32 down bag, simply to have an alternative for predictably soggy trips. So far it has worked great. I have had it down into the mid 40s and high 30s and have stayed nice and cozy throughout the night sleeping in just base layers. Though the down bag is lighter and warmer, I like that the Lamina-- being a synthetic--doesn't require the level of care and babying as the ratio.

    The Lamina Z Spark is impressively warm for how lightweight it is, and it also packs down reasonably small in the compression sack. In this way it is a sensible option for modern lightweight backpackers who aim to fit everything INSIDE their pack. HOWEVER. Tweaky ounce-counters should be warned that MY bag ("long" size) was almost 4 ounces heavier than advertised. The bag in the compression sack weighs in at just under 2lbs 9oz. The compression sack only weighs 2.25 oz, so you can do the math on that one.

    Also, the compression sack is 7"x13" (its printed on the sack itself) rather than 6x12, so thats another thing just to be aware of.

    None of these things really bother me. Its a great sleeping bag, and it would be hard to find another synthetic sleeping bag that performs as well with respect to this weight/size.