Sleeping Bag Buying Guide: How to Choose the Right One for Camping
Mammut Siku Down 0F/-18C Sleeping Bag
$272.73Compared to $389.95*Save 30%
Designed for maximum comfort in extreme situations, the Mammut Siku Down 0°F/-18°C Sleeping Bag is made with lightweight down and a special material to prevent noise for undisturbed rest.
Key Details
Fill
700-fill-power down
Weight
3 lbs. 12 oz.
Compressed Volume
20.1 liters
Temperature Rating (F)
0 degrees (F)
- Head and foot areas have a waterproof membrane
- Intuitive climate regulation with a central 2-way zipper
- Improved YKK zipper prevents jamming of material
- Insulated covering along the zipper to enhance climate comfort and protect from cold bridges
- Zipper garage reduces cold areas at the end of the zipper
- 700-fill-power ethically sourced down
- PFC-free durable water repellent (DWR) treatment
- Lining made from 100% recycled polyester
- Comfortable, soft fabric in the hood reduces noise and increases comfort
- Insulation chamber around the hood opening protects against cold and wind
- Easy-to-use magnetic closure on the thermal collar
- Drawstring for easy adjustment of the hood and thermal collar
- Inner pocket for storing valuables
- Revised anatomic footbox for greater comfort without extra weight
- Includes a deep-sleep mask and earplugs to reduce light and noises
- Comes with a stuff sack
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 Mammut 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 | 0 degrees (F) - EN |
| Tested Comfort | 14 degrees (F) - EN |
| Temperature Rating (F) | 0 degrees (F) |
| Temperature Rating (C) | -18 degrees (C) |
| Weight | 3 lbs. 12 oz. |
| Shell | 100% polyester |
| Zipper Location | Front |
| Insulation Type | Down |
| Fill | 700-fill-power down |
| Fill Weight | 2 lbs. 1.5 oz. |
| Sleeping Capacity | 1-person |
| Lining | 55% polyamide/45% polyester |
| Sleeping Bag Shape | Mummy |
| Fits Up To (in.) | 76.8 inches |
| Shoulder Girth (in.) | 62 inches |
| Hip Girth (in.) | 51 inches |
| Stuff Sack Size | 11.4 x 12 inches |
| Stuff Sack Volume | 22 liters |
| Compressed Volume | 20.1 liters |
| Gender | Unisex |
| Sustainability | Product meets the bluesign® criteria Contains recycled materials |
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