How to Choose Sleeping Bags for Backpacking
Marmot Trestles 30 Sleeping Bag
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Cold, damp weather calls for a synthetic insulated mummy bag. This 3-season sleeping bag offers lofty warmth, low bulk and excellent packability, and continues to insulate even if wet.
Shop similar productsKey Details
Fill
Polyester fibers
Temperature Rating (F)
33 degrees (F)
- Synthetic high-loft insulation and wave construction—overlapping shingles of insulation—combine to prevent cold spots
- With a European Norm (EN) lower-limit rating of 33°F, the Trestles 30 is a versatile bag for mild-weather 3-season adventures
- A blend of spiral hollow fibers and polyester fibers provides loft, warmth and compressibility
- Polyester shell and lining fabrics are treated with a Durable Water Repellent finish to repel moisture and stains
- 3D hood envelops your head in warmth; draw cords around hood allows face muff to be cinched snug without digging into face
- No more midnight drawcord fumbling—smooth, flat upper cord and hard, round lower cord make top opening adjustments easy
- 2-way, dual side zippers—1 half-zip, 1 partial-zip—allow top of bag to fold back allowing easy entry
- Trapezoid footbox is wide in toe area and narrow at the heels for comfort that does not compromise warmth
- Zipper guard along draft tube keeps fabric from snagging in the coils
- Stash pocket stows nighttime essentials
- The Marmot Trestles +30 sleeping bag includes a compression stuff sack
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 the Marmot Trestles Product LineView 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 | 33.4 degrees (F) - EN |
| Tested Comfort | 42.3 degrees (F) - EN |
| Temperature Rating (F) | 33 degrees (F) |
| Temperature Rating (C) | 1 degrees (C) |
| Shell | Polyester |
| Zipper Location | Left |
| Insulation Type | Synthetic |
| Fill | Polyester fibers |
| Lining | Polyester |
| Sleeping Bag Shape | Mummy |
| Stuff Sack Size | 8.5 x 18 inches |
| Stuff Sack Volume | 17 liters |
| Gender | Unisex |
