How to Choose Sleeping Bags for Backpacking
NEMO Fusion Sleeping Bag
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The ultimate bag for side-sleeping backpackers, the NEMO Fusion 3-season sleeping bag has a spoon shape that's wide in the shoulders, tapers in the waist, and then gently flares out at the knees.
Shop similar productsKey Details
Fill
550-fill down/Stratofiber polyester fibers
Temperature Rating (F)
30 degrees (F)
- Stretch stitching in the waist helps to reduce unnecessary volume and conserve heat, yet allows for unrestricted movement
- Synthetic Stratofiber insulation on the bottom for improved comfort when damp or compressed; DownTek™ down on the top for warmth, pack size and weight savings
- Water-repellent 550-fill DownTek down absorbs 30% less moisture and dries 60% faster than untreated down
- Insulated blanket fold mimics the turned-down edge of a comforter; wrap it around your neck and face to block drafts or turn it down during warmer nights
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 NEMO 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 | 24.9 degrees (F) - EN |
| Tested Comfort | 35 degrees (F) - EN |
| Temperature Rating (F) | 30 degrees (F) |
| Temperature Rating (C) | -1.1 degrees (C) |
| Shell | 30-denier ripstop nylon |
| Zipper Location | Left |
| Insulation Type | Down / Synthetic Blend |
| Water-Resistant Down | Yes |
| Fill | 550-fill down/Stratofiber polyester fibers |
| Lining | 30-denier nylon taffeta |
| Sleeping Bag Shape | Semirectangular |
| Stuff Sack Size | 8.5 x 16 inches |
| Stuff Sack Volume | 15 liters |
| Gender | Unisex |
