Marmot Trestles 15 Sleeping Bag

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Marmot Trestles 15 Sleeping Bag Review Facts

In today’s modern world, sleeping bags have been transformed using the latest innovative techniques and pioneering technology. Whether you are exploring the jungle or camping out in the snow, there is just no longer any need to suffer in the cold. Your sleeping bag should keep you warm, dry and comfortable while protecting you from the elements. With so many sleeping bags on the market promising to be the next best thing, it can be a challenge to find the perfect one to suit your needs.

Elevate your overnight stay and enjoy optimal comfort outdoors for a great value price with the Marmot Trestles 15 sleeping bag. Snuggle down into this warm and cozy escape from the elements! This entry-level bag is available at a great value price and fitted with all the essentials. There are many different things to consider, but if you are in the market for a new sleeping bag, and considering the Marmot’s best-selling bag, have a look at our detailed and in-depth review for a breakdown of the facts.

Editor's Pros & Cons
  • A two-zip system to provide unmatched ventilation
  • Marmot SpiraFil™ for warmth and comfort
  • Great value price
  • PFC-free
  • Anatomical foot box
  • Heavy
  • Large Pack Size


The Marmot Club was first founded back 1970s, when two students, Eric and Dave, begin developing sleeping bags and clothes for the outdoors. Moving to Colorado to California, the two students later established the business in 1974. The name Marmot came from Marmots, a type of large squirrels that live in mountainous areas. They are highly social animals that have evolved to thrive in the rocky peaks. Marmot is now renowned in the outdoor business, and they have spent the last forty years creating sleeping bags to suit the needs of every camper.

Using revolutionary technology and a continued dedication to development, they are one of the world’s best apparel and equipment companies. Marmot is also committed to their threefold promise, People/ Product/ Planet™. This involves their vow to ensure that each of the performance outdoor clothing and camping gear in their range has been designed to high ethical and sustainable standards; protecting the people and the planet across the entire design to manufacturing process.


When you are choosing a new sleeping bag, it is essential to consider the worst conditions and the weather that you are likely to experience while on your trip.

This sleeping bag is a great option for three-season camping. Warm enough for those chilly nights in fall with enough ventilation and breathability for a comfortable sleep in the summer. The Trestles 15 can even be used in damp and humid conditions, with the bag maintaining insulation ever after it has gotten wet. Several reviewers noted that even after their bag had got wet due to poor weather, they remained warm and toasty inside.

The Marmot Trestles 15 sleeping bag is also easy to clean and maintain, but we recommend that you keep on top of it while on your trip. Always make sure to protect your sleeping bag from the ground, and consider using a sleeping bag liner. We also advise airing your sleeping bag throughout the day. However, do not leave it in direct sunlight for an extended period of time, as the UV rays can damage the fabric.


Providing the perfect blend of warmth and comfort without weighing you down too much, the Marmot Trestles 15 will complete your camping kit. The bag has a weave construction on the top and a blanket material underneath. With this as well as the Marmot SpiraFil™ insulation, the Marmot Trestles 15 is definitely on the warmer end of the market.

As previously mentioned, the sleeping bag features a 15 degree temperature rating and provides 3 season warmth. It also features draft tubes around the hood which improve insulation and help to eradicate any cold spots. The zipper is also sewn behind a draft tube and closed flap, further preventing the cold air getting into the bag. The fold-down second zipper on the Marmot Trestles 15 sleeping bang allows for increased ventilation. It is an excellent method of ensuring that you are able to maintain optimum body temperature, even on those hot and sticky nights. However, some reviewers have suggested that the bag may be a little on the warm side.

You need to consider the temperature rating with regard to how you sleep. This is a well-insulated bag, and if you tend to be hot during the night, you may prefer a lighter model, or you could unzip the bag and use it as a blanket for extra ventilation. Alternately, if you are looking for extra warmth, check out the Marmot Trestles Elite or the Trestles 30 for all the best features of the Trestles 15 model but with additional insulation and protection. Some online reviews have also noted that due to the anatomical shape of the foot box, your feet can get a little cold and you may require warm socks on particularly frosty nights.


Comfort is key and after a day out in the wild and it is essential that you get the comfort that you need to sleep. Although mummy-style sleeping bags can, on occasion, feel restrictive, the Marmot Trestles 15 is roomy and spacious. You will find that you have plenty of space to sleep comfortably, even if you are a wriggly sleeper.

This sleeping bag is sure to keep you comfy throughout the night, with features designed to make you as snug as a bug in a rug. The 3D ergonomically contoured hood will securely envelop your head, featuring two drawcords that can be pulled tight for extra insulation. Additionally, the Marmot SpiraFil™ filling allows for extra comfort, providing softness and warmth. This excellent all-over synthetic insulation will add additional support to your sleeping experience. However, some reviews have suggested that the material that is used inside the bag is not very comfortable. Other reviewers have stated that the poor quality of the liner did disrupt their sleep to some extent. Although, this can easily be improved with the use of a sleeping bag liner, which is also more hygienic.


With such a spacious fit and a premium feel, you could easily think that the Marmot is much more expensive. At its current price, the Marmot Trestles 15 is a reliable and affordable sleeping bag.

If you are looking to upgrade your sleeping bag situation or looking for a more high-end option, Marmot has a wide variety to choose from, including the Marmot Trestles 30 and the Marmot Trestles Elite. However, if you do not wish to make a significant investment or do not require a sleeping bag for more extreme temperatures, this could be an excellent choice. It is warm, comfortable and practical, and at this price, it is certainly a bargain!


We are confident that the Marmot Trestles 15 will become your trusty camping companion for years to come, with lots of reviews highlighting how well the bag has been made for the price that you pay. The sleeping bag has been filled with Marmot SpiraFil insulation. This is a unique blend of hollow fibers that are highly durable and easily compressed. Plus, the use of thermal bonding provides high tear strength and longevity.

Overall, the Marmot Trestles 15 sleeping bag is reported to be relatively durable, and there have not been any online reviews that have suggested otherwise.


The weight of your sleeping bag will depend on the protection and warmth that you are likely to need and what you are able to carry. The Marmot Trestles 15 sleeping bag is slightly heavier in comparison with similar models. As a result, if you are planning on carrying your kit as you trek through outdoors, you may wish to opt for a lighter model. This affordable sleeping bag could be a great option if you are taking your camping gear by car or if you are looking for a toasty sleeping bag for overnight guests.


Mummy shaped sleeping bags are generally tapered at the bottom, and the Marmot Trestles 15 offers a roomy and comfortable fit. It is definitely a spacious bag and the perfect option for anyone who wriggles during their sleep. Plus, you can also zip two bags together, if you prefer a more spacious bag or if you and your significant other are cuddly sleepers

The Marmot Trestles 15 Sleeping Bag is available in both Regular, which is suitable for people up to 6’0’’ tall. You can also choose between standard unisex sizing and women-specific. All sleeping bags are generally unisex but the Marmot Trestles 15 ‘women’s’ option, also features an extra layer of fill. Whether you choose the regular or the women’s Marmot Trestles, 15 should have little to do with gender, and instead should be based on the warmth that you require. With a wider hip area, narrows shoulders and extra insulation around the feet, the women’s model could be a better fit for you.

It is also important to consider the pack size, as this is a relatively bulky kit when compared to other models. As mentioned before, it is probably not the best option if you have to carry all of your kit throughout your trek.

Ease of Use

The Marmot Trestles 15 is jam-packed full of handy features that have been created to improve your sleep of experience. For example, the added glow-in-the-dark touches to the zipper pull, and cords make it much easier to find your way out in the dark. The sleeping bag also features a handy storage pocket, measuring about around 15cm by 18cm. This is definitely a bonus and Ideal for storing your valuables and keeping night-time essentials to hand

Lots of customers also reported that the Marmot Trestles sleeping bag was quick to dry after it had gotten wet and that the bag continued to provide insulation when damp. The carry bag is also 100% waterproof, so your bag will not get wet if your pack gets caught in the rain. Draft tubes reduce cold spots as well as helping to ensure that the zipper opens and closes smoothly. However, several reviews did indicate that they have several difficulties with opening and fastening the zip, and others suggesting that the zipper snags easily.

Key Features

-Cinch sack for convenient packing
-Draw Cords
-EN tested
-Entirely PFC-free
-Full length locking YKK two-way double zipper system
-Polyester shell and lining fabrics
-Snag-less Insulated Draft Tube
-SpiraFil™ High Loft Insulation
-Storage pocket which is ideal for storing small items, such as your phone or headlamp
-Trapezoidal foot box so the bag is wider at the feet

Bottom Line

Don’t get left out in the cold, and always make sure that you have a reliable sleeping bag to keep you snug with the Marmot Trestles 15. Getting a great night’s sleep on your outdoor adventure does not need to be difficult with this soft and cozy bag.
The most important thing to consider when you are selecting a new sleeping bag has to be the warmth to weight ratio. You need to think about how you much insulation you will require and how much weight you will be able to transport. This sleeping bag is relatively heavy and does not compress to small pack size. It may not be suitable for backpackers and hikers who plan to carry their kit for miles. However, if you are new to the camping world and want to try a less expensive option or if you are only planning a short trip and want to prioritize warmth and comfort before weight, the Trestles 15 could be ideal.

The Trestles 15 is undoubtedly Marmot’s best-selling bag for a reason, and it may just be the perfect option for you. It is an entry-level sleeping bag, but overall it is a reliable bag that provides exceptional value for the price. Enjoy your night under the stars the right way with Marmot.