Contour Sheets and Methods of Making Thereof

Abstract

Contour sheets or fitted sheets having a mattress cover surface and a plurality of side surfaces are provided with at least one resilient member extendible in a vertical direction along the depth of a mattress in at least a portion of one of the side surfaces. Alternatively, sets of resilient members sandwiched between one or more layers of fabrics can be provided to prevent direct exposure to heat and other detrimental conditions that the contour sheets may be subjected to during routine wear and laundry. A method of making such contour sheets can include steps of cutting a generally polygonal shaped cut-out to form an opening at the corners of a base fabric, coupling at least one resilient member along at least one edge of the opening and sewing adjacent edges of the opening together.

1 . A contour sheet comprising a mattress cover surface and a plurality of side surfaces, wherein at least a portion of the side surfaces is configured to be resilient and extendible along a depth of a mattress such that said contour sheet is releasably secured to the mattress. 
     
     
         2 . The contour sheet of  claim 1 , wherein at least a portion of the side surfaces is provided with at least one resilient member configured to be extendible along the depth of the mattress. 
     
     
         3 . The contour sheet of  claim 2 , wherein said at least one resilient member is further configured to be sandwiched between one or more layers of a fabric. 
     
     
         4 . The contour sheet of  claim 2 , wherein said at least one resilient member is attached along corners that conform with corners of the mattress. 
     
     
         5 . The contour sheet of  claim 2 , wherein said resilient members are provided in a spaced apart manner along the side surfaces. 
     
     
         6 . The contour sheet of  claim 1 , wherein at least a portion of the side surfaces is provided with sets of resilient members, each of said sets of resilient members comprising a plurality of resilient members configured to be extendible along the depth of the mattress. 
     
     
         7 . The contour sheet of  claim 6 , wherein each of said plurality of resilient members constituting said sets of resilient members is further configured to be sandwiched between one or more layers of fabric. 
     
     
         8 . The contour sheet of  claim 6 , wherein said sets of resilient members are attached along corners that conform with corners of the mattress. 
     
     
         9 . The contour sheet of  claim 6 , wherein said sets of resilient members are provided in a spaced apart manner along the side surfaces. 
     
     
         10 . The contour sheet of  claim 6 , wherein said sets of resilient members are configured to provide an elongation ratio of about 1:3 or more of the un-extended to extended length of the side surfaces along the depth of the mattress. 
     
     
         11 . The contour sheet of  claim 2 , wherein the at least one resilient member is attached in a vertical direction along the depth of the mattress or at an angle relative to the vertical direction. 
     
     
         12 . The contour sheet of  claim 2 , further comprising L-shaped or V-shaped edges at the corners that conform with corners of the mattress. 
     
     
         13 . The contour sheet of  claim 12 , wherein the at least one resilient member is attached to one or both edges of the L-shaped or V-shaped edges.