How to Choose Sleeping Bags for Backpacking
Marmot Hibernest 15 Sleeping Bag
$299.00 – to $359.00
Plush and roomy, this Marmot sleeping bag packs small and opens into a big quilt. The 650+ fill-power down holds in heat on cool nights. Its mummy shape gives you room to stretch out and move around.
Key Details
Fill
650+ fill-power down
Weight
Short: 2 lbs. 12.9 oz.
Regular: 3 lbs.
Long: 3 lbs. 4.8 oz.
Compressed Volume
Short: 8.3 liters
Regular: 8.7 liters
Long: 9.8 liters
Temperature Rating (F)
15 degrees (F)
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- Down-filled backpacking bag packed with comfort features
- Roomy dimensions for comfortable sleeping in any position
- Light, durable ripstop shell with water-shedding durable water repellent (DWR) and Down Defender treatment keeps your bag lofty and warm, even if things get wet or humid
- Certified 650+ fill-power down with Down Defender for improved performance in wet conditions
- 100% recycled shell and lining fabrics
- Snag-free zipper wraps all the way down and around your feet to convert the bag into a quilt with extended blanket flaps for comfort
- Extended zipper flaps provide extra blanketlike coverage when unzipped
- Draft tube seals in warmth and prevents heat loss when moving during sleep
- Internal stash pocket
- ISO-tested for reliable temperature rating
- Compression sack and storage bag included
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 Marmot 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) - ISO |
| Tested Comfort | 23 degrees (F) - ISO |
| Temperature Rating (F) | 15 degrees (F) |
| Temperature Rating (C) | -9 degrees (C) |
| Weight | Short: 2 lbs. 12.9 oz. Regular: 3 lbs. Long: 3 lbs. 4.8 oz. |
| Shell | 100% postconsumer recycled polyester ripstop |
| Zipper Location | Left |
| Insulation Type | Down |
| Water-Resistant Down | Yes |
| Fill | 650+ fill-power down |
| Fill Weight | Short: 1 lb. 9.2 oz. Regular: 1 lb. 10.8 oz. Long: 1 lb. 13.7 oz. |
| Sleeping Capacity | 1-person |
| Lining | 100% postconsumer recycled polyester plain weave |
| Sleeping Bag Shape | Mummy |
| Fits Up To (in.) | Short: 66 inches Regular: 72 inches Long: 78 inches |
| Shoulder Girth (in.) | Short: 60 inches Regular: 62 inches Long: 64 inches |
| Hip Girth (in.) | Short: 60.6 inches Regular: 62.6 inches Long: 64.6 inches |
| Stuff Sack Size | 8.7 x 18.1 inches |
| Stuff Sack Volume | 36.5 liters |
| Compressed Volume | Short: 8.3 liters Regular: 8.7 liters Long: 9.8 liters |
| Gender | Unisex |
| Sustainability | Contains recycled materials |
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