Thin and thick dual-purpose sleeping bag

The utility model discloses a thin and thick dual-purpose sleeping bag which comprises a bag body, a sleeping cap, a pillow, a placing bag and a splicing assembly, the sleeping cap is fixed above the bag body, and an elastic band is arranged on the periphery of the sleeping cap; the pillow cushion is arranged below the sleeping cap, and an inflation inlet is formed in the surface of the middle end of the pillow cushion; the placing bags are arranged on the surfaces of the left side and the right side of the pillow cushion; the splicing assembly is arranged at the front end of the bag body. According to the thin and thick dual-purpose sleeping bag, a plurality of components are matched with one another, the assembly quilt can be assembled and disassembled, the head of a user can be protected, the overall comfort degree of the sleeping bag is improved, the thickness of the sleeping bag can be adjusted according to weather conditions, the requirements for different temperatures can be met, and the sleeping bag i