10 Best Hiking Sleeping Bags 2025 in the United States

The TETON Sports Outfitter -35 Degree Sleeping Bag is designed for those who need serious warmth in extremely cold conditions, with a temperature rating down to -35°F. It uses SuperLoft Elite hollow fiber insulation in a double-layer design to trap heat effectively, making it suitable for winter camping, hunting, or any cold weather adventure. The sleeping bag has a rugged canvas shell that’s water-resistant and built to last through many trips, paired with a soft cotton flannel liner for comfort. Its rectangular shape offers plenty of room and is great for people who prefer extra space to move around while sleeping.

This construction comes with a trade-off in weight and packability—it weighs about 20 pounds and is bulkier than many modern lightweight sleeping bags, so it’s best suited for car camping or situations where carrying heavy gear is not a concern. The zipper is sturdy and placed on the right side, providing ease of use and durability. While the bag is compressible to an extent, it won’t pack down as small as lighter synthetic or down bags. For those who prioritize durability, warmth, and comfort over ultralight portability, this sleeping bag offers a solid choice with tough materials and a lifetime warranty that adds confidence for long-term use, although those looking for lightweight, highly packable options might want to consider other models.

The Sea to Summit Spark Ultralight Down Sleeping Bag is a highly effective option for 2-season backpacking, bike packing, and touring. It boasts a 30-degree Fahrenheit temperature rating, making it suitable for moderate weather conditions but possibly less ideal for extremely cold nights. The high-loft 850+ fill power down insulation is a significant strength, as it provides excellent warmth while being lightweight and compact. The down is also treated with a non-PFC Ultra-Dry treatment to enhance moisture resistance, which is beneficial in damp conditions.

The bag's ultralight 10D shell material and PFC-free DWR coating add to its durability and water resistance, particularly in the hood and footbox areas. The breathable 10D nylon liner ensures comfort throughout the night. The contoured mummy shape allows for a natural sleeping position while maximizing warmth with hybrid box baffles in the torso. However, the sewn-through baffles in the leg area might reduce warmth in colder conditions. The YKK #5 zippers are designed to be reliable and snag-free, adding to the bag's practicality.

At a weight of only 1.16 pounds and highly packable dimensions, this sleeping bag is very convenient for hikers who prioritize light gear. One potential drawback is the price, as premium down insulation often comes at a higher cost. Additionally, the size might not be ideal for taller individuals, with a maximum height recommendation of 73 inches. This sleeping bag is well-regarded for its quality and performance, and it is best suited for dedicated outdoor enthusiasts looking for a lightweight, reliable sleeping bag for moderate weather conditions.

The Kelty Cosmic 20 Down Mummy Sleeping Bag is a reliable choice for backpackers and campers who need a balance of comfort and sustainability. Rated for 20 degrees, it provides ample warmth for three-season use, thanks to its 550 fill power down insulation. The mummy shape offers a snug fit, helping to retain body heat, making it suitable for colder nights.

Weighing around 2 lbs. 6 oz., the sleeping bag is lightweight and compressible, easily fitting into a stuff sack for convenient packing. The recycled nylon and polyester taffeta shell with PFAS-free durable water repellent adds an eco-friendly touch, making it a great option for those conscious about their environmental impact. The dual-direction zippers allow for easy access and ventilation, enhancing user comfort.

Some users might find the bag a bit tight, especially if they prefer more room to move around. Additionally, while the 550 fill power down is effective, it might not be as lofty or insulating as higher fill power options available in the market. This sleeping bag is ideal for campers and backpackers who prioritize sustainability and decent performance without breaking the bank.