The present disclosure relates to an outer shell member having opening and closing means formed along an edge, an inner shell member coupled to the inner shell member, a filling member filled between the outer shell member and the inner shell member, and a predetermined region of the central portion of the inner shell member. It is formed on the side of the heat-increasing member to prevent the loss of body temperature and the endothelial member and includes a heating bag portion to accommodate a body part to prevent the loss of body temperature, The heat-increasing member relates to a hybrid sleeping bag characterized in that it is formed of at least one stacked structure.
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