US Patent 9848706 Inflatable product and sofa

An inflatable product includes a plurality of inflatable bodies, each of which includes an upper edge and an outer periphery, wherein the inflatable bodies are disposed together, an angle X1 between the upper edges of two adjacent inflatable bodies and a contact line of the outer peripheries of the two adjacent inflatable bodies ranges from 0 to 50°, 0≦X1≦50°; and another angle X2 of at least one concave portion formed on the outer periphery by pulling the outer periphery inward ranges from 120° to 180°, 120°≦X2≦180°.