10 Best Down Sleeping Bags 2025 in the United States

The Kelty Cosmic 20 Down Mummy Sleeping Bag is a reliable choice for backpackers and campers, offering a temperature rating of 20 degrees, making it suitable for 3-season use. The 550 fill power down provides decent warmth and is highly compressible, which is beneficial for packing light. With a weight of 2.6 pounds for the regular size, it strikes a balance between warmth and portability.

The mummy shape is designed to keep heat in, though some might find it restrictive compared to traditional rectangular bags. The shell material is made from recycled nylon and polyester taffeta, which is an eco-friendly touch, and it has a PFAS-free durable water repellent finish to protect against moisture. The packed size of 13 x 7 inches makes it compact and easy to carry.

Dual direction zippers add convenience, allowing for easy entry and ventilation adjustments. However, the 550 fill power may not be as warm as higher fill power options, and it could be less effective in extreme cold conditions. Additionally, while the recycled materials are a positive environmental step, they may not offer the same durability as non-recycled options. Ideal for eco-conscious campers or backpackers who prioritize sustainability and comfort during moderate weather conditions.

The Sea to Summit Spark Ultralight Down Sleeping Bag is designed for backpackers and outdoor enthusiasts looking for a lightweight, warm option for cool weather. With a 15°F (-9°C) temperature rating, it suits 2-season use, making it a good choice for spring, fall, or mild winter camping. The high 850+ fill power ultra-dry goose down insulation is excellent for keeping warmth without adding bulk, and its moisture-resistant treatment helps maintain performance even in damp conditions. Weighing just 1.7 pounds, this sleeping bag is easy to carry on long treks or bike trips, and the compact packed size adds to its portability.

The mummy shape is contoured to fit closely around your body, which helps retain heat while still allowing some room to move comfortably during sleep. The outer shell is made of durable, ultralight 10D nylon with a water-repellent finish, offering good protection from light moisture. Inside, the breathable nylon liner adds comfort for all-night rest. The full box baffle construction prevents down from shifting, ensuring consistent warmth throughout. The YKK #5 zipper is reliable and designed to avoid snagging, a nice feature when quickly zipping up in cold weather.

One downside is that the 15°F rating might be too warm for very cold winter conditions, and the mummy shape might feel a bit snug for those who prefer extra space. Also, ultralight materials, while convenient, can be less durable in rough use. This sleeping bag effectively balances lightweight design and warmth, making it ideal for backpackers and bikepackers who need a dependable, packable sleeping bag for cool weather camping.

The Teton 0F Degree Deer Hunter Sleeping Bag is designed to keep you warm in three-season camping, with a comfort rating suitable for cold weather but not extreme winter conditions. Its tough canvas shell stands out because it’s durable and water-resistant, offering good protection against rough use and damp environments. Inside, the sleeping bag uses polyester fill with a double-layer design, which helps maintain warmth evenly. The rectangular shape provides a roomy feel, and the soft poly-flannel lining adds extra comfort for a cozy night's sleep. Weighing about 8.5 pounds, it’s on the heavier side compared to lightweight down bags, so it’s better suited for car camping or hunting trips rather than backpacking.

The zippers on both sides offer easy access and temperature control, along with shoulder draft tubes that help keep cold air out. The packed size is a bit bulky due to the canvas and polyester fill, meaning it takes up more space in your gear. While it’s not the lightest or most compressible option, its durability and warmth make it a solid choice for campers who prioritize toughness and comfort over minimal weight. Some might find the bag less ideal for very cold or high-altitude trips where specialized down bags excel, but for general camping and hunting in moderate cold, it performs well. The included limited lifetime warranty and responsive customer support add extra peace of mind.