How to Choose Sleeping Bags for Backpacking
Mountain Equipment Starlight I Sleeping Bag - Men's Long
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A full-featured bag weighing less than a kilo—2 lbs. 0.8 oz. to be exact—this long-length Mountain Equipment Starlight I sleeping bag is ideal for summertime adventures and hut-to-hut tours.
Shop similar productsKey Details
Fill
Polyester fibers
Weight
2 lbs. 0.8 oz.
Temperature Rating (F)
41 degrees (F)
- Helium™ 30-denier outer fabric is both durable and comfortable
- POLARLOFT® synthetic insulation helps maintain warmth even while wet
- Offset layer construction improves warmth by reducing cold spots
- Alpine fit maximizes thermal efficiency
- Anatomically shaped hood and foot box
- Full-length zipper baffle and integrated collar
- Includes a lightweight compression sack
- The Mountain Equipment Good Night's Sleep rating for this bag is 41°F (5°C); this may tally closely to the EN/ISO rating, but for certain bags the discrepancy may be larger
- Mountain Equipment is a member of Fair Wear Foundation, a European initiative working to improve workplace conditions in the garment and textile industry
- Closeout
Imported.
Mountain Equipment conducts their own laboratory and cold-chamber testing to give their bags a Good Night's Sleep temperature rating–a rating they feel is the most accurate reflection of a bag's potential in real-life situations.
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 Mountain Equipment Backpacking Sleeping BagsTemperature 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.
| Best Use | Backpacking |
|---|---|
| Tested Lower Limit | 41 degrees (F) - EN |
| Tested Comfort | 48 degrees (F) - EN |
| Temperature Rating (F) | 41 degrees (F) |
| Temperature Rating (C) | 5 degrees (C) |
| Weight | 2 lbs. 0.8 oz. |
| Shell | Nylon |
| Zipper Location | Left |
| Insulation Type | Synthetic |
| Fill | Polyester fibers |
| Lining | Nylon |
| Sleeping Bag Shape | Mummy |
| Fits Up To (in.) | 79 inches |
| Shoulder Girth (in.) | 30 inches |
| Hip Girth (in.) | Unavailable |
| Stuff Sack Size | 9 x 7 x 5 inches |
| Gender | Men's |
