Kelty Cosmic Sleeping Bag

The Kelty Cosmic is rated for 20 degrees Fahrenheit, making it a solid choice for three-season use. While it will handle chilly shoulder-season nights well, it is not designed for deep winter conditions or sub-zero temperatures.

Mummy bags are inherently snug to maximize heat retention, but this model features an expanded footbox to give your feet a bit more room to move naturally. If you are a restless sleeper who needs significant space to sprawl, you may still find the tapered design limiting.

While the bag features a water-repellent coating, down insulation is notoriously sensitive to moisture. It is best to keep the bag dry inside your pack or tent, as wet down loses its ability to loft and insulate effectively.

No, this bag is designed as a standalone mummy bag with a right-side zipper. It does not feature a compatible zipper system for pairing with other bags.

This specific model is designed for users up to 68 inches, or 5 feet 8 inches, tall. If you are taller than this, you will likely find the bag too short to fully cover your head and shoulders comfortably.

Yes, it is a convenient spot to keep small essentials like a headlamp, lip balm, or your phone battery warm, which helps prevent the battery from draining in cold temperatures.