An enclosure that converts to a blanket, a method for constructing the enclosure, and a method for converting the same into a blanket are disclosed. The enclosure includes a central panel, first-side and second-side panels and a sub-assembly. The central panel has a first end and an opposed second end. The central panel further has a transverse edge and an opposed edge. The first-side panel is connected along the transverse edge. The second-side panel is connected along the opposed edge. The sub-assembly, which includes a closing element and a protective element, is connected about a perimeter of the central panel. The closing element remains closed about a substantial portion of the perimeter when a firearm is present in the enclosure. The closing element is opened and the first-side and second-side panels unfolded in an outward manner from the central panel to form the blanket.