Backpack and sleeping bag

Abstract

A backpack may include a main body that defines a main compartment that may be accessed by a closure mechanism. The backpack may incorporate a secondary panel and a sleeping bag. The secondary panel may be permanently or removably attached to the backpack. The sleeping bag may be permanently or removably attached to the secondary panel. The secondary panel and the backpack may define a space to receive the sleeping bag. The secondary panel may conform to the shape of the backpack while the sleeping bag is received between the secondary panel and the backpack.

What is claimed is: 
     
         1 . A backpack comprising:
 a main body that defines a main compartment;   a secondary panel selectively joined to the main body;   the secondary panel configured to be selectively moved relative to the main body between a first position where the secondary panel and the main body define a substantially enclosed space and a second position where the secondary panel and the main body do not define the substantially enclosed space;   a sleeping bag joined to the secondary panel and received in the substantially enclosed space; and   when the secondary panel is in the second position, the sleeping bag is selectively configurable to be positioned into an operative state.   
     
     
         2 . The backpack of  claim 1 , wherein the secondary panel is selectively detachable from the main body. 
     
     
         3 . The backpack of  claim 1 , wherein the sleeping bag is detachable from the secondary panel. 
     
     
         4 . The backpack of  claim 1 , wherein the secondary panel comprises an outer surface, and the outer surface is formed using the same material forming a portion of an outer surface of the main body. 
     
     
         5 . The backpack of  claim 1 , wherein the secondary panel comprises at least one piece of cushion material forming a portion of an outer surface of the secondary panel. 
     
     
         6 . The backpack of  claim 1 , wherein the secondary panel comprises a strap joined to an outer surface of the secondary panel. 
     
     
         7 . The backpack of  claim 1 , further comprising a securing mechanism selectively joining the secondary panel to the main body when the secondary panel is in the second position. 
     
     
         8 . The backpack of  claim 7 , wherein the securing mechanism comprises at least one of a strap, a strap with an adjustable length, or a shoulder strap removably joined to the secondary panel. 
     
     
         9 . The backpack of  claim 8 , wherein the securing mechanism is joined adjacent to a corner of the secondary panel distal the main body of the backpack. 
     
     
         10 . The backpack of  claim 1 , wherein the sleeping bag comprises a top layer and a bottom layer, and the secondary panel forms a portion of the bottom layer of the sleeping bag. 
     
     
         11 . The backpack of  claim 1 , wherein the sleeping bag comprises at least one of a cushion layer, a foam material, or an insulating material. 
     
     
         12 . The backpack of  claim 1 , wherein the sleeping bag is folded three times to be received in the substantially enclosed space defined by the secondary panel and the main body. 
     
     
         13 . The backpack of  claim 1 , further comprising a hood joined to the sleeping bag. 
     
     
         14 . The backpack of  claim 13 , wherein the sleeping bag comprises a top layer and a bottom layer, and the hood is joined to an end of the top layer of the sleeping bag. 
     
     
         15 . The backpack of  claim 14 , wherein the top layer comprises an opening/closure mechanism extending between two adjacent edges of the top layer. 
     
     
         16 . The backpack of  claim 13 , wherein the hood is placed over the main body of the backpack when the secondary panel is moved to the second position. 
     
     
         17 . The backpack of  claim 1 , wherein the secondary panel is joined to the main body along a bottom edge or a side edge of the secondary panel and selectively moved by pivoting the secondary panel relative to the main body along the bottom edge or the side edge of the secondary panel. 
     
     
         18 . The backpack of  claim 1 , wherein the secondary panel is joined to the main body by a zipper or by sewing the secondary panel to the main body along at least a portion of a bottom edge or a side edge of the secondary panel. 
     
     
         19 . The backpack of  claim 18 , wherein the zipper runs along at least a portion of, up to the entirety of, a perimeter of the secondary panel. 
     
     
         20 . The backpack of  claim 19 , further comprising a securing feature that releasably secures a zipper pull of the zipper to the main body.