The Kelty Cosmic 0 Down Sleeping Bag is built for cold-weather camping and backpacking, delivering reliable warmth and comfort for winter and late-season adventures. Designed with Kelty’s trapezoidal baffle construction, this sleeping bag helps keep down insulation evenly distributed, improving thermal efficiency and reducing cold spots so you stay warmer on freezing nights outdoors.

Filled with 550-fill power down insulation, the Cosmic 0 provides excellent warmth while still maintaining reasonable packability for backcountry travel. The bag also features an expanded natural-fit footbox, giving your feet more room to move comfortably while maintaining insulation and warmth.

Additional thoughtful features include a zippered internal stash pocket for keeping small essentials like a headlamp or phone close at hand, as well as fully recycled shell and liner fabrics with a PFAS-free durable water-repellent (DWR) finish that helps protect the insulation from moisture while reducing environmental impact.

Weighing approximately 4 lb 6 oz, the Kelty Cosmic 0 Sleeping Bag is a dependable choice for winter camping, cold-weather backpacking, and alpine adventures, offering warmth, durability, and comfort when temperatures drop.