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 |
Buying Advice
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Most Helpful Favorable Review
Very good bag
tendogy12 years ago
I've used this bag once now. I initially bought it because it was only slightly bulkier than down, but had the low cost of synthetic. I didn't need anything colder because "winter" in Texas/Oklahoma is rarely below freezing.
The bag kept me warm at near-freezing temperatures for two nights. The zippers are conveniently placed, and the hood draw strings are easy to use. There is also a little zipper pouch to keep things in overnight.
The big CON is that the zippers snag constantly. You pretty much have to use both hands to keep the zipper clear anytime you want to zip or unzip either zipper.
The bottom line is that it is comfortable and keeps you warm at the temperature rating it claims.
tendogy
Arlington, TX
29 people found this review helpful
Most Helpful Critical Review
Comfortable but cool
JBec9 years ago
I used my new bag for the first time last night for hammock camping. It is comfortable and roomy enough for me (I'm 5'6" and 150 lbs). I was able to enter and get settled easily in the hammock with it, zipped up and adjusted. It compresses well and fits into my daypack relatively well. The downside, I got cold in it when it got down into the mid to low 40's. I know we can't take the temp ratings as definitive, but I was hoping I wouldn't get cold until it was in the 30's. I will have to plan how I dress when I sleep in it a little more. While I am keeping it, I would probably recommend getting the next lower temperature rating.
JBec
Birmingham, AL, United States
4 people found this review helpful
tendogy
Arlington, TX
Very good bag
12 years ago
I've used this bag once now. I initially bought it because it was only slightly bulkier than down, but had the low cost of synthetic. I didn't need anything colder because "winter" in Texas/Oklahoma is rarely below freezing. The bag kept me warm at near-freezing temperatures for two nights. The zippers are conveniently placed, and the hood draw strings are easy to use. There is also a little zipper pouch to keep things in overnight. The big CON is that the zippers snag constantly. You pretty much have to use both hands to keep the zipper clear anytime you want to zip or unzip either zipper. The bottom line is that it is comfortable and keeps you warm at the temperature rating it claims.
Yes , I recommend this product
neilsl
Indianapolis, IN
Great Bag
9 years ago
We are new to backpacking and got these bags for their comfort range, weight and price for value. I am very happy with this bag so far. We have been in temps into the middle 30s and stayed warm, and temps in the mid 60s and didn't cook inside these bags. I am a side sleeper, but have a small frame, and once I figured out you have to move the bag with you I had no problem getting comfortable. The dual side zippers are nice to use the upper top as a kind of quilt, and you can stick your arms out the sides and still have your torso covered. Overall, a great produce, and I would recommend for novice backpackers and car campers.
Yes , I recommend this product
That Guy You Like
Idaho, United States
Lightweight + Value = Good Bag
11 years ago
I've had this for a couple of years now, using it in higher altitude backpacking in the Idaho hinterlands. The bag is not ultralight, but packs down like one. It fits into the bag receptacle in my Gregory pack easily--with room to spare. Sleeping room is adequate for a larger build. I'm 6'1" and about 230. There's room to move in the bag, and it is adequate for a side-sleeper. Loops make it easy to keep it attached to about any sleep pad (I've had no trouble with the two different ones I use). On nights where temps dipped into the 20s, I had a warm, comfortable sleep. I've used a silk liner intermittently, but the bag works with or without--and has kept me warm as the mercury dipped. For reference/FYI: I sleep in a Passage 2 tent with the fly deployed. No issues with cold. On warmer nights, the sleeping bag vents nicely. I tend to run hot, but have yet to have a "sweaty night's sleep" in this bag. Overall, a great bag that packs down small and will take you from March to October at elevation with minimal to no discomfort.
Yes , I recommend this product
NicholasRI
Rhode Island
The perfect price to bag ratio!!!
12 years ago
For the price, this is the perfect bag for 3 season camping! It dropped down to the high 30's overnight and I was waking up sweating with just a set of light thermals on. I spent each additional night with just a thermal top, underwear, and the bag unzipped. The zipper did snag a couple of times, but in the dark it was incredibly easy to just slide it back and rezip it!
Yes , I recommend this product
JBec
Birmingham, AL, United States
Comfortable but cool
9 years ago
I used my new bag for the first time last night for hammock camping. It is comfortable and roomy enough for me (I'm 5'6" and 150 lbs). I was able to enter and get settled easily in the hammock with it, zipped up and adjusted. It compresses well and fits into my daypack relatively well. The downside, I got cold in it when it got down into the mid to low 40's. I know we can't take the temp ratings as definitive, but I was hoping I wouldn't get cold until it was in the 30's. I will have to plan how I dress when I sleep in it a little more. While I am keeping it, I would probably recommend getting the next lower temperature rating.
No, I do not recommend this product
Bearpig
Michigan, United States
Wonderful
9 years ago
I've just returned from and early spring camping outing. Twenty-nine degrees last night with a steady breeze. Tent. Fleece bag liner (rectangular) over bag. Wading jacket over feet. Slept great. Bag is not perfect. Zippers take TLC to work perfectly and at 3 AM , self control as well. But, two zippers: aces. Partial mummy? Not slippage from t-shirt over sweatshirt pillow. Side? AOK. Back? AOK. Other side? Fine too. At one point my breath was visible as I lay listening to a deer stomp in annoyance at my tent on her trail. Comfortable, though. Maybe at the limit but comfortable. Just a great bag for the price and at ten degrees lower than anticipated? Still, awesome restorative sleep. Great bag for a weary trout camping fly fisherman. Great!
Yes , I recommend this product
BackCountry Hatchet
Louisa, VA
Great Value and a Good Nights Sleep
11 years ago
I have used this bag three times since purchasing it. I have used it for car camping and backpacking and I consider it a good bag for either purpose. The only complaint I have is the zipper can be tricky to zip while laying in the bag.
Yes , I recommend this product
Hike With the Tiger
Greenville, SC, United States
Best Car Camping for 3 Season Weather
10 years ago
I have had this bag for years and I enjoy it on car camping trips thoroughly. It handles the weather of South Carolina nights perfectly and in 7 years of using this bag, I have never once been cold. My only complaint is that I find it too heavy for the ultralight backpacking that I am doing now. Other than that, it is a great sleeping bag.
Yes , I recommend this product
Raoul
Atlanta
Good bag!!
11 years ago
I took this bag to the Ofeefenokee in early March. Very cold the first night and moderately cool the next two nights. The bag was good for all three nights. It packs well and did exactly what I needed it to do.
Yes , I recommend this product
Truckasaurus
Seattle, WA, United States
Comfortable, simple, cheap. A+
10 years ago
Interestingly, it's not rated as low for survival as my girlfriend's marmot 30 women's bag. And I've only used this for rather hot camping (60 or so low, 80 high) and it's worked just fine. Enough room to move in if you want, snug enough if you don't. Interestingly, it will zip together with other marmot bags, so my girlfriend and I can share a bag in the heat, even though our bags are different lengths, they zip together decently. This is definitely a mummy bag and works well as one, but I'd call it a four season bag, as when it's legitimately HOT outside, you're not going to zip yourself into your bag anyways! works just fine unzipped, and I found that stuffing my pillow into the head kept my pillow in place better than my non mummy bag! For the money, we are unbelievably happy with this and the women specific version (I got the long version as I'm 6'3 and fit is perfect, and it still compresses down to fit into the back of my pack) compression is impressive, this guy compresses down to about a gallon size bag, and its compression sack is very effective. Easiest way to use that kind of buckle is to pull on the end while "pushing" the other side towards the ladder lock, think of it as "Feeding" the strap in.
Yes , I recommend this product
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