Body support with non-planar top surface

Abstract

A body support including a visco-elastic foam layer having a length and a non-planar top surface with peaks and troughs that define a horizontal distance between peaks and a vertical height between a peak and a trough. The peaks and troughs of the non-planar top surface form sinusoidal or domed waves. A density of the foam at the peaks is substantially the same as the density of the foam at the troughs. A ratio of the length to the distance is from 10 to 50, optionally from 15 to 40. The ratio of length to distance can be from 20 to 30 and optionally from 20 to 25.

1 . A body support comprising a foam layer having a substantially planar bottom surface and a smooth, non-planar top surface with a plurality of peaks and troughs that run in succession along an entire length of the body support, wherein only two of the plurality of peaks have an adjacent trough on each side thereof, and wherein an additional two of the plurality of peaks have an adjacent trough on only one side thereof. 
     
     
         2 . A body support as defined in  claim 1 , wherein the foam comprises visco-elastic foam. 
     
     
         3 . A body support as defined in  claim 1 , wherein the peaks and troughs of the non-planar top surface form sinusoidal waves. 
     
     
         4 . A body support as defined in  claim 1 , wherein the peaks and troughs of the non-planar top surface form domed waves. 
     
     
         5 . A body support as defined in  claim 1 , wherein a density of the foam at the peaks is substantially the same as the density of the foam at the troughs. 
     
     
         6 . (canceled) 
     
     
         7 . (canceled) 
     
     
         8 . (canceled) 
     
     
         9 . A body support as defined in  claim 1 , wherein the peaks and valleys define a horizontal distance between peaks and a vertical height between a peak and a trough, and wherein a ratio of the distance to the height is from 13 to 66. 
     
     
         10 . (canceled) 
     
     
         11 . (canceled) 
     
     
         12 . (canceled) 
     
     
         13 . (canceled) 
     
     
         14 . A body support as defined in  claim 9 , wherein the ratio of the distance to the height is from 20 to 52. 
     
     
         15 . A body support as defined in  claim 9 , wherein the ratio of the distance to the height is from 26 to 40. 
     
     
         16 . A body support as defined in  claim 9 , wherein the ratio of the distance to the height is from 26 to 33.