Patent ID: 7051387

Claim:
A portable sleeping bag comprising: an outer lining; a lower lining; a plurality of inner linings positioned between said outer lining and said lower lining so as to form a multi-layered structure defining an elongated, rectangular configuration, wherein said plurality of inner linings comprise a first lining and a second lining, said first lining and said second lining are each defined of an elongated, rectangular configuration, wherein said first lining and said second lining are adapted to be enclosed in a connected manner between said outer lining and said lower lining; wherein said outer lining, said first lining said second lining, and said lower lining are removably connected in an independent manner via said plurality of releasable fasteners, said releasable fasteners provide user with an option of varying a number of linings utilized, hence, varying a degree of warmth according to user preference; a plurality of releasable fasteners, said plurality of releasable fasteners are adapted to removably connect said outer lining, said plurality of inner linings and said lower lining in an independent manner, said plurality of releasable fasteners provide user with option of varying a number of linings utilized, hence, varying a degree of warmth according to user preference wherein said releasable fasteners are defined as enlarged buttons sewn along a periphery of said lower lining, said enlarged buttons are also sewn atop said outer lining in a linear pattern which traverses said outer lining generally along a midportion of said outer lining.