Kelty Cosmic Sleeping Bag

The 20-degree rating indicates the lower limit where the bag is designed to keep an average user warm. For most sleepers, this means it is best suited for temperatures down to freezing, but you may want to layer up or use a sleeping pad with a high R-value if you tend to sleep cold.

Yes, the semi-rectangular shape and the expanded natural-fit footbox provide more room than a traditional mummy bag. This design allows for more natural movement and prevents your feet from feeling cramped.

Trapezoidal baffles are designed to prevent the down insulation from shifting or clumping. By keeping the insulation evenly distributed, the bag eliminates cold spots and maintains a consistent thermal barrier around your body.

The Cosmic 20 features a quad-stitch anti-snag zipper system specifically engineered to prevent the fabric from catching. While no zipper is entirely immune to snags, this construction is significantly smoother and more reliable than standard sleeping bag zippers.

The bag features a sustainable water-repellent treatment on the shell, which helps shed light moisture and condensation. However, because it uses down insulation, you should still take care to keep it dry, as down loses its loft and insulating ability when saturated.

The dual sliders allow you to unzip the bag from the bottom or the top. This is particularly useful for venting heat if you get too warm during the night without having to fully expose your upper body to the cold air.