Sleeping Bag Buying Guide: How to Choose the Right One for Camping
Sierra Designs Night Cap 20 Sleeping Bag - Long
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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.
Shop similar productsKey Details
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 |
Buying Advice
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Location:Illinois USA
Age:18–24
8 months ago
claustrophobia lfe saver
Yes , I recommend this product
Finally a sleeping bag that doesn't cause me to wake up in a panic in the middle of the night. Perfect for people with claustrophobia!
Age:18–24
Location:Tahoe, CA
Age:35–44
2 months ago
Tahoe Basin Wildland Fire Review
Yes , I recommend this product
I use it at Wildland fire camps. The fabric doesn’t make as much noise when you move around in it as traditional bags. You get used to slipping in and out from the top, but it is different than just unzipping and getting out. It’s very warm, but also convenient to have the vent at the foot to let you stick a leg or two out. I use it during the fall and early winter in the Tahoe Basin. It’s enough with some thermals to keep you warm even with some light snow on the ground. I especially love that I can curl in the bag and use it for comfort rather than stuffing a blanket in there with tea.
Age:35–44
Location:Minnesota
Age:25–34
5 months ago
Great concept but flawed design.
No, I do not recommend this product
Odd design - wasn’t a hit. Two issues: 1. the back shoulder area is uninsulated. Turn on your side and you back gets cold. Use the sleeping pad sleeve on a cold surface and the cold convects right into your back. 2. The bag is fully sewn together between your waist and feet, making temperature regulation impossible.
Age:25–34
2 months ago
love it
very comfortable and cosy. I slipped my sleep pad in the built in sleeve which kept my back in constant contact with the pad. the way I was nestled in the bag with its "hood" type top and overlapping side made it so comfy. I'm very happy with this purchase. Because there is no zipper you kind of have to slide in and out of the bag which was no problem, just different than the traditional sleeping bag.
Age:55–64
1 month ago
A great sleeping bag for slightly taller people
Great construction, I really like the larger size and the way it covers
Age:55–64