Abstract: Provided is a mattress wherein the elastic characteristics of each portion can be changed simply and inexpensively depending on the user's preference. A mattress (10) has a plurality of spring units (60, 70, 80, 90) respectively constituted by holding a plurality of vertically stretchable pocket coils integrally, a lower elastic body (40) in which a housing space (44) capable of housing and holding the spring units (60, 70, 80, 90) is formed, and an upper enclosure (21) and a lower enclosure (30) for covering the outer periphery of the lower elastic body (40), wherein the lower elastic body (40) is provided with a partitioning elastic body (50) for dividing the housing space (44) into a plurality of spaces, and the spring units (60, 70, 80, 90) are formed in such a shape that each of the spring units can be housed in the divided housing spaces (44), and are housed and held in the respective divided housing spaces (44).

Abstract: Provided is a mattress wherein the elastic characteristics of each portion can be changed simply and inexpensively depending on the user's preference. A mattress (10) has a plurality of spring units (60, 70, 80, 90) respectively constituted by holding a plurality of vertically stretchable pocket coils integrally, a lower elastic body (40) in which a housing space (44) capable of housing and holding the spring units (60, 70, 80, 90) is formed, and an upper enclosure (21) and a lower enclosure (30) for covering the outer periphery of the lower elastic body (40), wherein the lower elastic body (40) is provided with a partitioning elastic body (50) for dividing the housing space (44) into a plurality of spaces, and the spring units (60, 70, 80, 90) are formed in such a shape that each of the spring units can be housed in the divided housing spaces (44), and are housed and held in the respective divided housing spaces (44).