10 Best 0 Degree Down Sleeping Bag 2026 in the United States

The HiZYNICE 0 Degree Sleeping Bag offers a solid option for winter camping and cold weather, with a temperature rating that ensures warmth in extreme conditions. It features a soft 100% cotton flannel lining for comfort and anti-snag zippers that are easy to operate, making it user-friendly. The bag is quite spacious, accommodating campers up to 6 feet 7 inches tall, and is wide enough for side sleepers or those who prefer more room. The draft tube along the zipper is a handy feature to prevent heat loss, which is crucial in cold weather.

The weight of the bag (7 pounds) makes it less ideal for backpacking where lighter options would be preferred. The rectangular shape might not be as thermally efficient as mummy-shaped bags, but it does offer more space and comfort. The outer material is a sturdy waterproof polyester, which is great for durability and keeping dry, but it may not be as breathable as other fabrics. Additionally, the inclusion of a compression sack is a plus, making it easier to pack and transport.

The ability to zip two bags together to form a double sleeping bag or fully open it to use as a mat adds versatility. This sleeping bag is best suited for car camping, short hikes, or situations where weight is less of a concern. Machine washability is a convenient feature, but care should be taken to protect the waterproof coating.

The Coleman North Rim 0°F Big & Tall Sleeping Bag is designed to keep you warm in extremely cold temperatures, as low as 0°F. Its big and tall design accommodates campers up to 6 feet 2 inches, making it a great choice for taller individuals. One of its standout features is the adjustable hood, which allows for a customized balance of warmth and ventilation. The Thermolock draft tube helps prevent body heat from escaping through the zipper, enhancing thermal efficiency. The Coletherm hollow polyester insulation provides good heat retention while keeping the sleeping bag lightweight for its category. Additionally, the no-snag zipper ensures smooth operation without frustrations during setup or while getting in and out of the bag.

The sleeping bag is also machine washable, which adds a layer of convenience for maintenance and cleaning. Measuring 82 x 32 inches, it offers ample space for a comfortable night's sleep. However, at 7.8 pounds, it is heavier compared to some other 0-degree sleeping bags on the market, which may be a consideration for backpackers looking to minimize their load. While the polyester material and cotton fill are durable, some users might prefer down insulation for even better warmth-to-weight ratio.

The Coleman North Rim comes with a 5-year limited warranty, providing added peace of mind. This sleeping bag is best suited for car campers or those not overly concerned with weight, looking for a durable, warm, and spacious option for cold-weather camping.

The Kelty Supernova 0 Degree Down Sleeping Bag is a solid choice for winter and all-season outdoor enthusiasts. It’s designed to keep you warm in extremely cold conditions with its 550 fill power down insulation, which offers good heat retention and compressibility. Weighing 4 pounds when packed and with a packed size of 17 x 9 inches, it’s relatively lightweight and compact for a 0-degree rated sleeping bag, making it suitable for backpacking trips.

The rectangular shape provides ample room for different body types and sleep positions, enhancing comfort during use. Additionally, it features a sustainable design with recycled shell and liner fabrics, appealing to eco-conscious users. One unique feature is its ability to zip together with another Supernova bag, creating a spacious 2-person sleeping arrangement, which is great for couples or friends sharing a tent.

On the downside, the 550 fill power down is not as lofty or warm as higher fill power options available in the market, which could be a consideration for very extreme temperatures. Furthermore, while the bag is roomy, this could mean it may not be as thermally efficient as more snug-fitting mummy-style bags. The bag’s weight, though manageable, is on the higher end compared to some ultralight options, which might be a drawback for those looking to minimize pack weight. However, for users who prioritize comfort, roominess, and sustainability in their gear, the Kelty Supernova is a dependable and well-rounded option.