Mummy Sleeping Bag Cotton Filled 10F Rated Winter Camping Sack

A mummy cut is not about looking technical, it is about the amount of air your body has to heat. Narrowing the bag toward the feet cuts the dead space, which is why this one holds a comfortable temperature down to 10F where a rectangular bag of the same fill would not. Cotton fill does the insulating and feels less clammy against the skin than synthetics do on a long night. Opened out it measures 80.7 by 108.3 inches, so there is genuine room across the shoulders and enough length for taller sleepers. It packs to 9 by 13.8 inches and weighs 2.4 pounds, which is fair for a bag rated this cold. Built for winter camping rather than a mild weekend.