Marmot Trestles Elite Eco Sleeping Bag

The Trestles Elite Eco is rated for 20°F, making it an excellent choice for three-season camping and shoulder-season trips where temperatures hover near freezing. It is not designed for deep winter expeditions, but it provides reliable warmth for most cold-weather backpacking adventures.

Unlike down, the HL-ElixR ECO synthetic insulation retains its loft and thermal efficiency even when damp. This makes it a dependable option for humid environments or trips where you might encounter condensation inside your tent.

The fold-down secondary zipper allows you to open the top of the bag like a blanket, providing extra ventilation if the temperature rises during the night. It offers the versatility of a quilt while maintaining the heat-trapping benefits of a mummy bag.

While the mummy shape is designed to maximize heat retention by minimizing dead air space, the anatomical footbox is shaped to allow your feet to rest naturally. If you are a side sleeper who prefers a lot of room to sprawl, you may find the fit snug, but it is standard for a performance-oriented bag.

Yes, Marmot uses 100% recycled polyester for both the shell and the lining, and the HL-ElixR ECO insulation is also made from recycled materials. It is a solid choice if you are looking to reduce your environmental footprint without sacrificing technical performance.

It packs down to a volume of 10.5 liters, which is quite efficient for a synthetic bag. While it won't compress as small as a high-end down bag, it fits easily into most standard backpacking packs.