Mattress and laid bedding for bed

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.

What is claimed is: 
     
         1 . A mattress comprising:
 a plurality of cores,   wherein each of the plurality of cores includes:   an extremely fine fibrous resin layer in which extremely fine fibrous resin is three-dimensionally intertwined and welded together;   a latex layer provided with a plurality of air vent holes; and   a urethane layer sandwiched between the extremely fine fibrous resin layer and the latex layer.   
     
     
         2 . The mattress according to  claim 1 , wherein a number of the plurality of cores is three or six in response to a size of the mattress. 
     
     
         3 . A laid bedding for a bed, comprising:
 the mattress according to  claim 1 ; and   a box-like closed-bottom frame in which the mattress is laid and filled, the closed-bottom frame including a bottom portion and an edge portion provided on a peripheral portion of the bottom portion.   
     
     
         4 . The laid bedding for abed according to  claim 3 , wherein the closed-bottom frame has a plurality of air vent holes which allow an inner surface and outer surface of the closed-bottom frame to communicate with each other. 
     
     
         5 . The laid bedding for a bed according to  claim 3 , wherein a thickness of the mattress is higher than a height of the edge portion of the closed-bottom frame. 
     
     
         6 . A mattress comprising:
 a plurality of cores,   wherein each of the plurality of cores includes:   an extremely fine fibrous resin layer in which extremely fine fibrous resin is three-dimensionally intertwined and welded together;   a low-resilience urethane layer; and   a urethane layer sandwiched between the extremely fine fibrous resin layer and the low resilience urethane layer.   
     
     
         7 . The mattress according to  claim 6 , wherein a number of the plurality of cores is three or six in response to a size of the mattress. 
     
     
         8 . A laid bedding for a bed, comprising:
 the mattress according to  claim 6 ; and   a box-like closed-bottom frame in which the mattress is laid and filled, the closed-bottom frame including a bottom portion and an edge portion provided on a peripheral portion of the bottom portion.   
     
     
         9 . The laid bedding for a bed according to  claim 8 , wherein the closed-bottom frame has a plurality of air vent holes which allow an inner surface and outer surface of the closed-bottom frame to communicate with each other. 
     
     
         10 . The laid bedding for a bed according to  claim 8 , wherein a thickness of the mattress is higher than a height of the edge portion of the closed-bottom frame. 
     
     
         11 . A mattress comprising:
 a plurality of cores,   wherein each of the plurality of cores includes:   a latex layer provided with a plurality of air vent holes;   a low resilience urethane layer; and   a urethane layer sandwiched between the latex layer and the low-resilience urethane layer.   
     
     
         12 . The mattress according to  claim 11 , wherein a number of the plurality of cores is three or six in response to a size of the mattress. 
     
     
         13 . A laid bedding for a bed, comprising:
 the mattress according to  claim 11 ; and   a box-like closed-bottom frame in which the mattress is laid and filled, the closed-bottom frame including a bottom portion and an edge portion provided on a peripheral portion of the bottom portion.   
     
     
         14 . The laid bedding for a bed according to  claim 13 , wherein the closed-bottom frame has a plurality of air vent holes which allow an inner surface and outer surface of the closed-bottom frame to communicate with each other. 
     
     
         15 . The laid bedding for a bed according to  claim 13 , wherein a thickness of the mattress is higher than a height of the edge portion of the closed-bottom frame.