Since not everyone likes to be swaddled in a sleeping bag, the Zippered Vents Sleeping Bag provides a great option (or two). It is a sectioned nap pack that covers only the body parts individual sleepers want covered. If their hands happen to be particularly hot one night, they can unzip one of the mid-sections and stick them out instead of folding down the entire top of the sleeping bag, exposing their neck, shoulder and arms in the process.
Sold on Hammacher Schlemmer, the Zippered Vents Sleeping Bag boasts four additional outer zippers that span across it near the ankles, knees, waist and chest. The outer shell is made out of 210 thread-count rip-stop nylon while inside is lined with soft cotton flannel. In between the two is a four-layer microfiber insulation.