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Hands-on Gear Review

Marmot Trestles 15 Review


Camping Sleeping Bag

  • Currently 3.0/5
Overall avg rating 3.0 of 5 based on 1 review. Most recent review: May 18, 2015
Price:   $109 List | Varies from $76 - $109 online
Compare prices at 6 resellers
Pros:  Two zippers gives mated bags excellent ventilation
Cons:  Heavy and bulky for a mummy bag
Manufacturer:   Marmot
Review by: Chris McNamara ⋅ Founder and Editor-in-Chief, OutdoorGearLab ⋅ May 18, 2015  
The Marmot Trestles 15 is the second warmest synthetic bag we've tested. It boasts two zippers: one full-length and another quarter-length. These provide unmatched ventilation options and make the bag very comfortable for extended stays in the tent. Unfortunately, the bag's insulation is thick, heavy (35 ounces), and not very compressible. The bag feels like a heavy blanket, not a light and flexible sleeping bag. The hood design is also bulky and claustrophobic when fully cinched. In general, our testers find this type of bag to be too heavy for backpacking. Some rectangular sleeping bags offer a similar amount of warmth, are more comfortable, and cost significantly less than the Trestles.

New Version Update - April 2015
The Trestles 15 has gotten a makeover! Keep reading for more details.

RELATED: Our complete review of camping sleeping bags

  • Photos
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OutdoorGearLab Editors' Hands-on Review

New Version of the Trestles 15 vs. the Older Version

The Trestles 15 has gotten a makeover; not only has the color changed, as you can see below, but it also has updated face fabric! However, even with these changes, we are confident that this review will still give you a good feel for the new version.

Below you will find a side-by-side comparison, with the latest version on the left and the older version on the right.

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Hands-On Review


The Marmot Testles 15 is one of the warmest and most featured synthetic mummy sleeping bag reviewed here. 35 ounces of insulation make the bag thick and heavy and provide ample protection between you and the elements. In warmer weather the Trestles provides unmatched ventilation; it has two zippers (one full length and another quarter length). This setup is better than a single zipper because its more versatile. By opening both sides part way you can sit up easily or poke your hands out while keeping your core covered. Although reading in a sleeping bag was never hard, its far easier with two zippers.

Marmot make this bag affordable ($109) by using a sewn through shingled wave construction. This design makes the manufacturing process easier and faster, while offset baffling keeps the bag warm.

Like most sleeping bags, the Trestles is equipped with a mate-able primary zipper. This means you can attach two bags together to make a doublewide compartment for you and your significant other. The additional quarter length zipper makes mated nights better than in other bags because both people have their own zipper for ventilation.

The compression stuff sack included with the Trestles bag was one of our favorites of all the bags tested in this category. It's strong and durable - a fine bonus.


On the whole, the Trestles is an entry level synthetic sleeping bag. It weighs 3 lbs 10 ounces, making it one of the heaviest mummy bags in this review. It is also surprisingly bulky, though not nearly as big as many of its competitors. Despite its 15 degree temperature rating, the Trestles is also not the most successful in colder temperatures. The upper half of the bag feels larger than most others in the same class. This leaves plenty of room for layers, but may be a bit too spacious for slender folk. Similarly, the dual zipper design doesn't allow the hood pull cords (one for the top and one for the bottom) to wrap entirely around the hood. Tightening the two parts is difficult and uncomfortable: the end result is an accordion of synthetic bunches and folds. The dual cinch design also neglects to provide a storage space for the two pull cords.

On the whole, we recommend this bag primarily for car camping, but those willing to carry a bulky, heavy bag into the backcountry will be able to use it for occasional backpacking trips. As with the REI Polar Pod 25, we recommend considering a backpacking sleeping bag if you frequently hike to camp. Although there are more affordable bags that car camp as well or better, we recommend this bag to couples who intend to buy two Trestles and zip them together. When mated together, two Trestles form a single incredibly comfortable and fun basecamp/car camp sleeping system. Normally when two bags are mated together they become one giant zipperless and claustrophobic cocoon. The Trestles, is more comfortable because each person has control of his/her own quarter length zipper.

Best Application

Car camping with mated sleeping bags.


Other bags are a better value unless you get two Trestles and zip them together.

Other Versions

Trestles 15 - Women's
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  • Cost - $109
  • Weight - 3 lbs 10 oz
  • Women's version of the Trestles 15
  • The women's cut is shorter and has a slightly smaller shoulder girth

Marmot Plasma 30
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  • Cost - $579
  • Total Weight - 1.38 lbs
  • 900-fill down
  • Hyperlite Pertex Quantum shell material
  • High performance summer weight down sleeping bag

Chris McNamara and Max Neale

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OutdoorGearLab Member Reviews

Most recent review: May 18, 2015
Summary of All Ratings

OutdoorGearLab Editors' Rating:   
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Average Customer Rating:     (0.0)
Rating Distribution
1 Total Ratings
5 star: 0%  (0)
4 star: 0%  (0)
3 star: 100%  (1)
2 star: 0%  (0)
1 star: 0%  (0)

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Marmot Trestles 15
Credit: Marmot
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