Cozy into Western Mountaineering's Sonora Sleeping Bag Liner at night and you might think you're waking up in your bed even though you're camping. This liner's polyester construction feels as soft as your bed sheet back home and it adds warmth if you're too cold and moisture management if you're too warm. This liner is machine washable so it doesn't smell like last trip's campfire and Western Mountaineering included a stuff sack so you can take it backpacking.