Kelty Cosmic Sleeping Bag

The Kelty Cosmic is rated for 20 degrees Fahrenheit, making it a solid choice for shoulder-season camping in spring and autumn. While it provides reliable warmth in those conditions, it is not intended for deep winter expeditions.

Because it uses 550-fill duck down, this bag is highly compressible and packs down significantly smaller than synthetic alternatives. It is designed to fit easily into most backpacking packs without taking up excessive room.

While mummy bags are designed to be snug to maximize heat retention, this model includes a spacious foot box to prevent your feet from feeling cramped. If you are a side sleeper who moves a lot, you may still find the tapered fit more restrictive than a rectangular bag.

The water-resistant finish is designed to shed light precipitation and condensation, not to withstand heavy rain or soaking. It is a helpful feature for damp mornings, but you should still use a waterproof stuff sack or pack liner to keep the down dry during transit.

This sleeping bag is designed to fit users up to 68 inches tall. If you are near or above this height, you may find the bag too short to fully cover your head comfortably.

The bag features a full-length zipper with an integrated draft tube to prevent heat loss. While the draft tube is essential for warmth, it requires a bit of care when zipping up to ensure the fabric does not catch.