The invention provides a fluid filling bedding object. The fluid filling bedding object is formed by successive stacking of the first surface layer of sheet, at least one intermediate sheet and the second surface layer of sheet and by sealing the periphery. Fluid is filled between each of the first surface layer of sheet and the second surface layer of sheet and the at least one intermediate sheet the first surface layer of sheet, the second surface layer of sheet and the at least one intermediate sheet are bonded according to the shapes of mutually-bonded polygons a linear bonding part exists at the part corresponding to the edge of the shape of the polygon fluid chambers are formed at the parts surrounding the linear bonding part connecting parts are formed at the unbonded part to mutually connect the adjacent fluid chambers the connecting parts at the side of the first surface layer of sheet are arranged at the position opposite to the fluid chambers at the side of the second surface layer of sheet and the fluid chambers at the side of the second surface layer of sheet are arranged at the position opposite to the fluid chambers at the side of the first surface layer of sheet.
