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Sleep comfortably by yourself or with a partner with the grey Teton Sports Mammoth Sleeping Bag, rated for 20°F. This rectangular 3 season design measures 94 x 62" so there's plenty of space for the both of you. A taffeta shell contains the SuperLoft Elite 4-channel hollow fiber fill, which retains it's insulating qualities even when wet. A poly flannel lining is comfortable even when there's a chill in the air. This bag packs down to 27 x 14 x 14" using the included stuff sack.