Sleeping bag with integral heating duct

Abstract

A sleeping bag has a shell constructed by a flexible panel that is folded in half to form first and second panel portions. Adjacent edges of the first and second panel portions having complementary components of a fastener thereon to close the sleeping bag except for an opening at a head end thereof. A duct, secured to the first panel portion, has an opening between the first and second panel portions, and another opening outside the head end at which to connect to hair dryer. Heated air from the hair dryer is distributed throughout the sleeping bag prior to or during use by a camper.

What is claimed is:  
     
         1 . A sleeping bag comprising: 
 a shell formed by a first panel portion and a second panel portion each having a plurality of sides, the first panel portion being joined along a first side to a first side of the second panel portion;    a fastener for releasably securing together at least one other side of each of the first panel portion and the second panel portion to form a sleeping enclosure; and    a duct fastened to the shell and having a first opening within the shell, and having a second opening at an end that projects from the shell for connection to a source of heated air.    
     
     
         2 . The sleeping bag as recited in  claim 1  wherein the duct extends along one of the plurality of sides of the first panel portion.  
     
     
         3 . The sleeping bag as recited in  claim 1  wherein the duct extends along the first side of the first panel portion within the sleeping enclosure.  
     
     
         4  The sleeping bag as recited in  claim 3  wherein the duct has a plurality of air outlets along a length of the duct.  
     
     
         5 . The sleeping bag as recited in  claim 3  wherein the shell has a head end and a foot end, and the first opening of the duct is adjacent the foot end and the second opening is adjacent the head end.  
     
     
         6 . The sleeping bag as recited in  claim 5  wherein the duct extends outward from head end of the shell.  
     
     
         7 . A sleeping bag comprising: 
 a flexible panel folded in half to form first and second panel portions with adjacent edge sections having complementary components of a fastener thereon whereby to seal the sleeping bag except for an opening at a head end thereof; and    a duct secured to the first panel portion and having a first opening between the first and second panel portions, and having a second opening in a section of the duct which projects outward from the head end wherein the second opening is adapted to connect to hair dryer.    
     
     
         8 . The sleeping bag as recited in  claim 7  wherein the duct extends to adjacent a foot end of the sleeping bag.  
     
     
         9 . The sleeping bag as recited in  claim 8  wherein the duct has a plurality of air outlets between the head end and the foot end of the sleeping bag.