How to Choose Sleeping Bags for Backpacking
Therm-a-Rest Centari Sleeping Bag
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Be prepared for any weather in the backcountry with the Therm-a-Rest Centari sleeping bag. Filled with synthetic insulation, the Centari will keep you warm even in the wettest environments.
Shop similar productsKey Details
Fill
Polyester
Temperature Rating (F)
11 degrees (F)
- Synthetic polyester insulation is light and compressible
- Bag uses zoned insulation to provide consistent warmth where it's needed and reduce weight where possible
- Fill is concentrated in the top for best insulation and used sparingly on edges and bottom where it's less effective; air pad required to complete system (sold separately)
- Accommodating an air mattress up to 25 in. wide, bottom of sleeping bag features 2 stretch connectors that create a secure link to the pad, eliminating sliding and twisting
- Centari sleeping bag has a European Norm (EN) lower-limit rating of 11°F to ensure you stay warm year-round, including on mild winter nights
- Bag is designed with extra space in torso to allow natural movement without restriction; bag tapers at head and foot for thermal efficiency, keeping head and feet warm
- Ripstop nylon shell fabric has a nice feel and is lightweight, durable, water- and abrasion resistant; nylon lining is soft and tear-resistant
- Full baffle draft collar drapes comfortably over neck and shoulders, sealing out cold air
- Bag features an adjustable, sculpted hood, snag-free zipper and a stash pocket
- Therm-a-Rest Centari down sleeping bag includes a stuff sack and storage bag
- European Norm (EN) is an independent third-party temperature rating, allowing accurate comparisons across brands with other EN-rated bags
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 Therm-a-Rest 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 | 11 degrees (F) - EN |
| Tested Comfort | 23 degrees (F) - EN |
| Temperature Rating (F) | 11 degrees (F) |
| Temperature Rating (C) | -12 degrees Celsius |
| Shell | Polyester |
| Insulation Type | Synthetic |
| Fill | Polyester |
| Lining | Polyester |
| Sleeping Bag Shape | Mummy |
| Stuff Sack Size | 9 x 18 |
| Stuff Sack Volume | 17 liter |
| Gender | Unisex |
