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The Mountain Hardwear Hyperlamina Spark Sleeping Bag

Climbers love a good sleeping bag. From car camping and hut visits to mountainside bivies, a good sleeping bag can make all the difference in your experience.

We recently got our hands on the new Mountain Hardwear Hyperlamina Spark and took it into the mountains for a try, because where else should you take a sleeping bag for a test?

Mountain Hardear’s Lamina design uses a lamination process that removes cold-spot stitching throughout the bag. They weld their insulation directly to the inside of the outer shell.

The Canadian Rockies offer great testing grounds for new gear so we took the bag with us to the Ghost River. The nighttime temperature hovered just below freezing. The Hyperlamina lived up to its promise and despite being colder than it’s recommended low, we didn’t get cold. In fact it was a toasty sleep.

One of the best features is the snazzy two-way centre zip that makes doing things in your tent easy. Zips on the front of the sleeping bag, why is this not already a thing?

Another bonus was the absent of seams against our skin meant there was no uncomfortable friction.

Because we hiked in and carried small packs for the night, these bags had another bonus and that’s packing down to about 15 cm X 30 cm.

We spent the day cragging and returned to the tent around dark. We cooked our dinner while laying in our sleeping bags. It was the most comfortable cook-out ever.

The new three-season Hyperlamina went above and beyond in providing us with everything a great sleeping bag should. Highly recommended.

Lamina Construction from Mountain Hardwear on Vimeo.