Summer camping nights have their own kind of magic, and the Kelty Cosmic Sleeping Bag 40F Synthetic is built to make sure you wake up from every one of them feeling rested and ready for the next day. Whether the trailhead is an hour's drive or a full day's hike away, this bag packs down small, sets up fast, and keeps you comfortably warm down to 40 degrees without asking you to break the bank to do it. Kelty filled the Cosmic with CirroLoft synthetic insulation that delivers reliable warmth and packs into a compression stuff sack at a size that fits easily into a backpacking kit or behind the seat of a truck. A Dwr-finished nylon taffeta shell sheds light moisture and reduces dry times if the bag gets damp, while the Natural-Fit footbox adds enough room at the bottom to move your feet naturally through the night rather than feeling compressed and locked in place.