Marmot has set the industry standard with the Cloudbreak 20, a synthetic sleeping bag with a warmth/weight ratio nearly as good as their down bags. Super compact-able and lightweight, the bag is EN-tested to keep you warm in temps below freezing. Body-mapped insulation yields maximum thermal efficiency, giving you extra warmth for core and feet while significantly reducing weight.
Thermal R is Marmot's proprietary family of polyester insulation specifically engineered to meet various needs of sleeping bags. Mid loft, excellent warmth to weight, resilient loft, and durable.Comfort Limit:
32.2F degrees (based on a standard woman having a comfortable nights sleep)Lower Limit:
21.6F degrees (based on a standard man having a comfortable nights sleep)Extreme Rating:
Minus 9.8F degrees (survival rating for a standard woman)
Marmot's Curly's Clips - EN Testing (temperature ratings)