Mattress assembly and/or pillows including at least one auxetic foam layer

Abstract

Mattress assemblies and/or pillows include at least one auxetic foam layer.

What is claimed is: 
     
         1 . A mattress assembly, comprising:
 at least one auxetic foam layer having a negative Poisson's ratio.   
     
     
         2 . The mattress assembly of  claim 1 , wherein the at least one auxetic foam layer is provided within a top panel layer, a quilt panel layer, an upholstery layer, an innercore, and combinations thereof. 
     
     
         3 . The mattress assembly of  claim 1 , wherein the at least one auxetic foam layer is proximate to a sleeping surface of the mattress assembly spanning at least a portion of the length and/or width of the sleeping surface. 
     
     
         4 . The mattress assembly of  claim 1 , wherein the at least one auxetic foam layer further comprises a phase change material. 
     
     
         5 . The mattress assembly of  claim 1 , wherein the negative Poisson's ratio is in a range from −0.5 to −1. 
     
     
         6 . The mattress assembly of  claim 1 , wherein the mattress assembly comprises multiple foam layers stackedly arranged on top of one another, wherein at least one of the multiple foam layers comprises the auxetic foam layer. 
     
     
         7 . The mattress assembly of  claim 1 , wherein the at least one auxetic foam layer has an indention load deflection (ILD) at 25% deflection of 5-120 pounds force and for 65% deflection of 6.8-188 measured in accordance with ASTM D-3574 and/or ASTM D 3575. 
     
     
         8 . The mattress assembly of  claim 1 , wherein the at least one auxetic foam layer has a density from about 0.5 to about 8 pounds per cubic foot. 
     
     
         9 . The mattress assembly of  claim 1  further comprising one or more non-auxetic foam layers having a positive Poisson's ratio. 
     
     
         10 . A pillow comprising:
 at least one auxetic foam layer having a negative Poisson's ratio; and   an envelope encapsulating the at least one auxetic foam layer.   
     
     
         11 . The pillow of  claim 10  further comprising layers of non-auxetic foam, feathers, fiber padding or combinations thereof within the envelope. 
     
     
         12 . The pillow of  claim 10 , wherein the at least one auxetic foam layer further comprises a phase change material. 
     
     
         13 . The pillow of  claim 10 , wherein the negative Poisson's ratio is in a range from −0.5 to −1.