How to Choose Sleeping Bags for Backpacking
Mountain Hardwear HyperLamina Torch Sleeping Bag - Regular
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The regular Mountain Hardwear HyperLamina Torch sleeping bag uses zoned insulation that maps warmth to where you need it most, around your core and feet.
Shop similar productsKey Details
Fill
Thermal.Q synthetic fibers
Temperature Rating (F)
3 degrees (F)
- Performance mummy cut is snug, reducing girth, weight and bulk while maximizing thermal efficiency
- Lamina construction welds the Thermal.Q insulation to the shell and lining, eliminating the cold spots caused by traditional stitching
- Thermal.Q insulation has outstanding compressibility and maintains excellent loft and warmth, even when damp
- Ergonomic draft collar blocks the escape of heated air from inside the bag
- 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
- Single #5 half-length center zip with dual sliders minimizes weight and allows for ventilation
- Ultralight shell is soft and highly wind-resistant
- Silnylon compression stuff sack and mesh storage sack included
- Closeout
Imported.
Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.
Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
View all Mountain Hardwear Backpacking Sleeping BagsEach bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
| Best Use | Backpacking |
|---|---|
| Tested Lower Limit | 3 degrees (F) - EN |
| Tested Comfort | 16 degrees (F) - EN |
| Temperature Rating (F) | 3 degrees (F) |
| Temperature Rating (C) | -16 degrees (C) |
| Shell | Tactel nylon |
| Zipper Location | Front |
| Insulation Type | Synthetic |
| Fill | Thermal.Q synthetic fibers |
| Lining | 20-denier taffeta |
| Sleeping Bag Shape | Mummy |
| Stuff Sack Size | 8 x 18 inches |
| Stuff Sack Volume | 14.8 liters |
| Compressed Volume | Unavailable |
| Gender | Unisex |
