Cold weather camping to warm weather camping, head to bed in the same Coleman 2000008057 Adjustable Comfort Sleeping Bag for heights up to 5 ft. 11 in. It's designed to keep you warm in temperatures down to 20°F and comfortable in temperatures as high as 70°F. The reason is the versatile layers. When it's hot, just cover up with the lightweight sheet. As the mercury drops, swap it out for the traditional sleeping bag experience. When it gets really chilly, you can snuggle up with both covers.