Sleeping bag with snorkel hood and draft curtain

Abstract

A sleeping bag has upper and lower portions, an access opening in the upper portion, and a breathing opening in the upper portion adjacent one end of the bag. Overlying and spaced from the breathing opening is a snorkel hood where outgoing exhalation is placed in heat and moisture exchange relation with incoming air so that an individual wholly enclosed within the bag may breathe preheated air having substantial moisture content. A curtain is provided along the upper portion adjacent the access opening for engaging about the upper torso of the individual and with the lower portion of the bag to divide and seal the bag into head and body compartments. In warm and cool weather conditions, the individual may sleep with his head exposed to ambient air. In warm weather conditions, the curtain underlies the upper portion above the individual's torso so that air may circulate into the body compartment. In cool weather conditions, the curtain is engaged about the individual's torso to maintain body warmth in the sealed body compartment. In cold weather conditions, the individual's head and torso lie wholly within the head and body compartments with the curtain drawn about the torso to seal and divide the compartments.

Dependencies are inferred from the claim text.