Abstract: A sleeping bag comprises first and second halves and an entrance end having an entrance aperture. At the entrance end, a first member attachment zipper half extends across the first half, and a second member attachment zipper half extends across the second half. A detachable pillow sleeve can be removably secured to the sleeping bag by securing a pillow sleeve attachment zipper half on the detachable pillow sleeve to either the first or second member attachment zipper half. The pillow sleeve also has a first hood attachment zipper half, and a detachable hood can be removably secured to the pillow sleeve by securing a second hood attachment zipper half on the hood to the first hood attachment zipper half. The hood can also be secured directly to the sleeping bag by securing the second hood attachment zipper half to either the first or second member attachment zipper half.