Abstract: [Problem] The present invention provides the mattress which can fix a plurality of mattresses stably. [Solution] A mattress comprises a first mattress 10, a second mattress 20 stacked on the first mattress, and a fixing member 30 fixing the first mattress and the second mattress. The fixing member comprising a first belt 31 attached to a side surface of the first mattress, a second belt 33 having a first fixing part and the second fixing part fixed to a lower end part and an upper end part in a side surface of the second mattress, respectively, and a connecting tool 34 passed to the second belt and moving from the upper end part to the lower end part in the side surface of the second mattress. The first mattress and the second mattress are fixed by passing the first belt to the first connecting tool.

Abstract: A mattress and a laid bedding for a bed are disclosed. The laid bedding is configured such that a mattress in which split cores are freely combined is laid and filled in a box-like closed bottom frame composed of a bottom and an edge erected on a peripheral portion of the bottom. In the mattress, there are three types: a mattress composed of a latex layer, a urethane layer and a low-resilience urethane layer; a mattress composed of an extremely fine fibrous resin layer in which extremely fine fibrous resin is three-dimensionally intertwined and welded together, a urethane layer and a latex layer; and a mattress composed of an extremely fine fibrous resin layer in which extremely fine fibrous resin is three-dimensionally intertwined and welded together, a urethane layer and a low-resilience urethane layer. Each of the mattresses is composed of three or six cores according to size.