Keep your head and pillow off the cold ground when you lie down to sleep in the  40°F Big and Tall Sleeping Bag with a contoured top. Lightweight Coletherm™ hollow polyester insulation and the Thermolock™ draft tube along the zipper helps keep body heat from escaping so you stay warm even when it's 40°F outside. The Comfort Cuff™ design makes sure you only have soft fabric around your face while you sleep. Thanks to the ZipPlow™ zipper, you'll get snag-free opening and closing every time. You can stash small items, such as gloves or a flashlight, in the interior tuck pocket. Packing up is easy with the Roll Control™ system to keep your bag straight while rolling and the no-tie Quick Cord™ system to keep things cinched tight for storing inside the included stuff sack.