A spring mattress comprises a plurality of interconnected coil springs enclosed in casings, the springs having a first and a second end, wherein for at least one of the springs, casing portions arranged at the first and second ends of the spring are connected to each other through the spring by a joint. The joined casing portions comprise openings through the spring. Pieces of foam material are arranged in the openings, so that a first portion of each piece of foam material extends towards the first end of the spring and a second portion of each piece of foam material extends towards the second end of the spring. An apparatus and method for manufacturing such a mattress are also disclosed.

A seat pad with improved thermal comfort and improved vibration absorptivity and a seat pad manufacturing method for easily obtaining the seat pad are provided. In the seat pad (1), when a surface portion (2) up to 10 mm from a surface (1f) is cut out and the air permeability AR1 of the surface portion (2) is measured in compliance with JIS K 6400, the air permeability AR1 is more than 5 cc/cm.sup.2/sec and 25 cc/cm.sup.2/sec or less. The seat pad manufacturing method is a seat pad manufacturing method for obtaining the seat pad (1) by supplying a molding material into a molding die and performing foam molding. As the molding die, a molding die an inner surface of which is covered with polystyrene or polyethylene is used.

A seat pad with improved thermal comfort and improved vibration absorptivity and a seat pad manufacturing method for easily obtaining the seat pad are provided. In the seat pad (1), when a surface portion (2) up to 10 mm from a surface (1f) is cut out and the air permeability AR1 of the surface portion (2) is measured in compliance with JIS K 6400, the air permeability AR1 is more than 5 cc/cm.sup.2/sec and 25 cc/cm.sup.2/sec or less. The seat pad manufacturing method is a seat pad manufacturing method for obtaining the seat pad (1) by supplying a molding material into a molding die and performing foam molding. As the molding die, a molding die an inner surface of which is covered with polystyrene or polyethylene is used.

A mattress and mattress system for an adjustable base foundation configured to accommodate two mattresses in a side-by-side relationship and independently articulate each of the two mattresses. The mattress generally includes an edge zone about a perimeter of a selected one of the lateral sides, and a comfort zone. The edge zone can have a greater firmness level than the comfort zone. The mattress system includes two mattresses in a side-by-side relationship, wherein each mattress includes the edge zone about the perimeter of a selected one of the lateral sides, and a comfort zone. The mattresses are arranged on the adjustable base foundation such that the exterior facing lateral sides of each mattress are defined by the edge zone. The comfort zone includes the interior facing lateral sides.

A mattress and mattress system for an adjustable base foundation configured to accommodate two mattresses in a side-by-side relationship and independently articulate each of the two mattresses. The mattress generally includes an edge zone about a perimeter of a selected one of the lateral sides, and a comfort zone. The edge zone can have a greater firmness level than the comfort zone. The mattress system includes two mattresses in a side-by-side relationship, wherein each mattress includes the edge zone about the perimeter of a selected one of the lateral sides, and a comfort zone. The mattresses are arranged on the adjustable base foundation such that the exterior facing lateral sides of each mattress are defined by the edge zone. The comfort zone includes the interior facing lateral sides.

A mattress or a mattress pad with one or more gel sections. The gel section may provide improved support and comfort at a localized area of a mattress or a mattress pad.

A customizable cushioning device for supporting an anatomical region of a patient can include a main body. The main body can have an intact base and a plurality of removable pillars. The plurality of removable pillars can be disposed on the intact base. The main body can include a first portion and a second portion. The first portion can have a first flexibility. The second portion can have a second flexibility. The first flexibility is different from the second flexibility.

The present invention is a mattress for infants which reduces positional plagiocephaly. In one embodiment, the mattress includes a first portion and second portion, where the second portion is inclined relative to the first portion. In another embodiment, the surface of the second portion of the mattress includes a pattern of raised areas and depressed areas to support the neck and head of an infant.

An adjustable mattress topper assembly disposed in a cover is disclosed. The topper assembly may have one or two inflatable multi-valve bladder assemblies filled with foam; the topper assembly may be disposed in a topper body of foam. A hand-trigger may be used to operate a valve and inflate and deflate the bladder assembly, which may be located below the lumbar of a supine user.

A mattress having a three-dimensional elastic structure of the present invention has a structure in which a main elastic body independently contracts and expands by multiple first to fourth auxiliary elastic slits which intersect with each other in left and right directions, front and rear directions, and up and down directions so as to form a three-dimensional air tunnel. Accordingly, when the first to fourth auxiliary elastic slits contract and expand, air is discharged in all directions of the main elastic body through the three-dimensional air tunnel so as to disperse the pressure by a human body, thereby inducing good blood circulation, and heat is released through the three-dimensional air tunnel so as to secure air permeability, thereby inducing maintenance of a proper sleep temperature so as to provide a more comfortable sleep environment.