A bag that's as cozy as home and gives more freedom for stretching out than traditional mummy bags, the long Sierra Designs Night Cap 20 integrates a zipperless, oversized comforter with a pad sleeve.
Fill
SierraLoft Eco synthetic
Weight
3 lbs. 1.4 oz.
Compressed Volume
16 x 7 x 7 inches
Temperature Rating (F)
20 degrees (F)
- Oversized integrated comforter gives you all the comforts of your bed at home
- Insulated shoulder pockets keep comforter wrapped around you to seal out drafts
- Patented self-sealing foot vent provides fast and easy ventilation
- Integrated sleeping pad sleeve keeps pad under you for comfort and warmth (sleeping pad not included)
- Hood cinch keeps in heat when the temps drop
- Recycled materials reduce environmental impact
- ISO tested
- Includes a stuff sack for easy pack up and transport
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 Sierra Designs Camping 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 | Camping |
|---|---|
| Tested Lower Limit | 23 degrees (F) - ISO |
| Tested Comfort | 34 degrees (F) - ISO |
| Temperature Rating (F) | 20 degrees (F) |
| Temperature Rating (C) | -7 degrees (C) |
| Weight | 3 lbs. 1.4 oz. |
| Shell | Polyester |
| Zipper Location | Left |
| Insulation Type | Synthetic |
| Fill | SierraLoft Eco synthetic |
| Fill Weight | 2 lbs. 9.3 oz. |
| Sleeping Capacity | 1-person |
| Lining | 20-denier recycled polyester |
| Sleeping Bag Shape | Mummy |
| Fits Up To (in.) | 78 inches |
| Shoulder Girth (in.) | 64 inches |
| Hip Girth (in.) | 62 inches |
| Stuff Sack Size | 7.5 x 15 inches |
| Compressed Volume | 16 x 7 x 7 inches |
| Gender | Unisex |
| Sustainability | Contains recycled materials |