Sleeping Bag System

Abstract

A sleeping bag system includes two sleeping bags each having a facial cowl in a hood portion of the bag. Each bag has attachment members on or adjacent the facial cowl. Each attachment member is configured for connection with a corresponding attachment member of the other bag to provide one of a plurality of flexible connections between at least the hood portions when one of the bags is positioned inside the other bag. The attachment members can prevent or minimize shifting of one of the bags inside the other bag.

1 . A sleeping bag system comprising:
 first and second sleeping bags each having a facial cowl in a hood portion of the bag;   each bag having a plurality of attachment members on or adjacent the facial cowl, each attachment member configured for connection with a corresponding attachment member of the other bag to provide one of a plurality of flexible connections between at least the hood portions when one of the bags is positioned inside the other bag.   
     
     
         2 . The sleeping bag system of  claim 1 , wherein:
 the attachment members of the first bag comprise a plurality of anchoring attachment members; and   the corresponding attachment members of the second bag comprise a plurality of loops of an elastic member that extends at least partially around the facial cowl of the second bag, the loops configured to receive the anchoring attachment members.   
     
     
         3 . The sleeping bag system of  claim 2 , wherein the anchoring attachment members comprise at least one of the following: a toggle, a snap tab, and a button. 
     
     
         4 . The sleeping bag system of  claim 1 , wherein:
 the first bag further comprises at least one interior attachment member on or adjacent an outer perimeter of the first bag and accessible inside the first bag, and   the second bag further comprises at least one corresponding exterior attachment member on or adjacent an outer perimeter of the second bag and accessible outside the second bag.   
     
     
         5 . The sleeping bag system of  claim 1 , wherein a size of the facial cowl and/or relative spacing of attachment members on or adjacent the facial cowl of each bag are selectively adjustable independently of the other bag. 
     
     
         6 . The sleeping bag system of  claim 1 , wherein at least some of the flexible connections are provided at opposite sides and/or opposite ends of the first and second bags when one of the bags is attached in and to the other of the bags. 
     
     
         7 . The sleeping bag system of  claim 1 , wherein each bag is configured to be selectively used without the other bag. 
     
     
         8 . A sleeping bag system comprising:
 first and second sleeping bags each having an outer perimeter, and a facial cowl defining a facial opening in a hood portion of the bag;   each bag having a plurality of attachment members on or adjacent the facial cowl and outer perimeter of the bag, the attachment members of the first bag corresponding to the attachment members of the second bag;   each of the bags configured to be selectively attached in and to the other bag using the attachment members to provide one or more flexible connections between the bags.   
     
     
         9 . The sleeping bag system of  claim 8 , each bag further comprising a slide fastener reversibly operable to at least partially open and/or close the bag along a slit extending from the facial opening of the bag;
 the attachment members comprising anchoring attachment members and recipient attachment members, the first bag having a plurality of anchoring attachment members on opposite sides of the slide fastener;   the second bag having an elastic member extending alongside at least a portion of the facial cowl and terminating in a pair of recipient attachment members for receiving the anchoring attachment members of the first bag to provide flexible connections between the bags on opposite sides of the slide fasteners when one of the bags is attached in and to the other of the bags.   
     
     
         10 . The sleeping bag system of  claim 9 , wherein the slide fasteners are at least partially offset from each other when one of the bags is attached in and to the other of the bags. 
     
     
         11 . The sleeping bag system of  claim 9 , wherein the attachment members comprise a tab of the first bag on or adjacent a top of the facial cowl of the first bag, the tab configured to be attached to itself upon being inserted through a loop in the elastic member of the second bag. 
     
     
         12 . The sleeping bag system of  claim 8 , wherein the attachment members comprise recipient attachment members accessible outside at least one of the bags atop the hood portion, at opposite sides, and/or at a foot portion of the at least one of the bags, the recipient attachment members configured to receive a plurality of corresponding anchoring attachment members accessible inside the other bag. 
     
     
         13 . The sleeping bag system of  claim 8 , wherein:
 the attachment members comprise a plurality of anchoring attachment members including a toggle, tab and/or button; and   the attachment members further comprise a plurality of recipient attachment members including a loop, buttonhole, and/or eyelet.   
     
     
         14 . The sleeping bag system of  claim 8 , each of the bags configured to selectively be used without the other bag. 
     
     
         15 . A sleeping bag system comprising:
 first and second sleeping bags, each bag having a hood portion having a facial cowl that defines a facial opening;   each of the bags having a slide fastener operable to at least partially open and/or close the bag along a generally frontal slit extending from the facial opening;   the first bag having a plurality of attachment members on or adjacent the facial cowl of the first bag and configured with a plurality of corresponding attachment members on or adjacent the facial cowl of the second bag to provide a plurality of flexible connections between the bags when one of the bags is attached in and to the other bag.   
     
     
         16 . The sleeping bag system of  claim 15 , wherein each bag is configured to be selectively used without the other bag. 
     
     
         17 . The sleeping bag system of  claim 15 , further comprising a plurality of attachment members spaced along an outer perimeter of the first bag and configured for connection with a plurality of corresponding attachment members spaced along an outer perimeter of the second bag when one of the bags is attached in and to the other bag. 
     
     
         18 . The sleeping bag system of  claim 17 , wherein:
 the attachment members along the perimeter of one of the bags comprise one or more loops and/or buttonhole tabs, and   the attachment members along the perimeter of the other bag comprise one or more snap tabs, buttons, and/or toggles.   
     
     
         19 . The sleeping bag system of  claim 15 , wherein:
 the first bag comprises a pair of toggles on or adjacent the facial cowl of the first bag on opposite sides of the slide fastener of the first bag;   the second bag includes an elastic member extending at least partially around the facial cowl of the second bag and terminating in a pair of loops for receiving the toggles of the first bag; and   the loops and toggles are configured to be positioned on opposite sides of both of the slide fasteners when one of the bags is positioned in and attached to the other of the bags.   
     
     
         20 . The sleeping bag system of  claim 4 , wherein the first bag comprises a snap tab on or adjacent a top of the facial cowl of the first bag, the snap tab configured to flexibly anchor the first bag to the second bag through a corresponding loop in the elastic member.