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Play hard all day, sleep well at night.

Due to its Thermal.Q synthetic insulation and water-resistant DWR finish, the Mountain Hardwear Lamina 20 Sleeping Bag is a solid choice for cool temperatures and damp, high-humidity conditions. The innovative Lamina construction eliminates the cold spots caused by standard baffle stitching, the tailored hood and face gasket ensure that precious body heat stays in, and the comfort mummy cut allows for a little more movement than standard mummy cuts.

  • With an EN lower limit of 23°F (lower limit refers to the average man's comfort zone), this bag is best suited for camping in the spring, summer, fall, and mild winter weather
  • Thermal.Q synthetic insulation is highly compressible, maintains its loft, and insulates better than down if it gets wet
  • Ripstop nylon shell has a DWR finish for reliable wind and water resistance
  • Comfort mummy cut allows you to move a bit more than a standard mummy bag while maintaining warmth and low weight
  • Lamina construction attaches the shell directly to the insulation, eliminating cold spots caused by stitching in typical baffle construction
  • Comfort Footbox accommodates the natural position of the foot for improved warmth and comfort
  • Polyester lining is soft and wicks away excess moisture
  • Face gasket and a snug-fitting hood keep cold drafts out and warmth in
  • Lamina 20 weighs in at just over 3 pounds, exceptionally light for a synthetic bag
  • Stuffs into an included 7 by 15.5 inch stuff sack for compact transport
  • Includes storage sack

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Mountain Hardwear Lamina 20 Sleeping Bag: 20 Degree Thermal Q

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Here's what others have to say...

4 5


  • Familiarity: I've put it through the wringer

This bag is very comfortable and of all my bags, stays truest to rating. It has become my goto bag for most all of my backpacking and camping. I know most people like feather bags but in MN it gets really muggy in summer and really wet in winter. For this reason, I have sacrificed a few extra ounces for a synthetic bag.

In the winter when you cinch down and try to draw the zipper up from the inside, it gets stuck every inch of the way! When you are in the bag and try to exit from within, you cannot get out! I have absolutely zero claustrophobia and have squeezed through things tighter than a birth canal but this bag will give you a new meaning to the word "trapped". If a bear came calling at night and you needed out to defend yourself, you might as well just recite Psalm 23 because you'd be toast. As soon as I find a deal on another good bag, I will trade in.

P.S. If you test the bag out and draw the zipper up from the outside, it will seem like it works like a charm. Try it from the inside before you purchase this bag.