ROVOR Couzy 40 Degree Mummy Sleeping Bag with Included Stuff Sack | The Couzy Sleeping Bags for Adults Have a 40 Degree Comfort Rating LIFETIME WARRANTY: Like all Rovor Products, the Couzy Mummy Sleeping Bag has a lifetime warranty against manufacturer defects, and every product is tested to the highest quality standards. If there are any issues that arise, just send it to Rovor or any Rovor retailer for a hassle free replacement FITS TALL ADULTS AND TEENS: This is a perfect sleeping bag for adults and tall teens, but can also be used as a kids sleeping bag. It is among the tallest on the market at 90 inches in length and has a recommended maximum height of 7 feet TEMPERATURE RATING: Rovor Couzys 0 Degree Fahrenheit Extreme Rating, and 40 Degree Fahrenheit Comfort Rating allow for use in cool, moderate, or warm weather. We do not recommend using this camping sleeping bag under 40 Degrees Fahrenheit unless absolutely necessary HEAVY DUTY & BUILT TO LAST: Our Hiking Sleeping Bag is outfitted with YKK zippers for no-snag performance from the worlds leading zipper brand, and a premium reinforced mini-diamond ripstop polyester shell that is lightweight without sacrificing durability BE COMFORTABLE & STAY WARM: Couzy Cold Weather Sleeping Bag has a 260 thread count ultra-soft microfiber lining, 100% Polyester H4 Hollow Fiberfill provides exceptional warmth and is significantly lighter than others