Abstract: Encased coil units with advance conforming properties have various interconnections and structures between individually encased or wrapped coils. In the various embodiments, encasement structures between coils such as closure or attachment of sheet material or fabric, which encase the coils, are configured to allow and enhance independent movement of coils with respect to adjacent coils and remote coils of the unit. Modifications in the sheet material or fabric which encases the coils include variations in the points of connection or disconnection between adjacent coils, such as slits in the material proximate to top ends of the coils in a continuous string, or the absence of welds or glue points between adjacent encasements or strings of encasements, proximate to top ends of the coils to allow more freedom of movement of the top or upper ends of the coils and with respect to adjacent coils, and to reduce load transfer or cratering of the coil springs about the locus of the force vector.

Abstract: Encased coil units with advance conforming properties have various interconnections and structures between individually encased or wrapped coils. In the various embodiments, encasement structures between coils such as closure or attachment of sheet material or fabric, which encase the coils, are configured to allow and enhance independent movement of coils with respect to adjacent coils and remote coils of the unit. Modifications in the sheet material or fabric which encases the coils include variations in the points of connection or disconnection between adjacent coils, such as slits in the material proximate to top ends of the coils in a continuous string, or the absence of welds or glue points between adjacent encasements or strings of encasements, proximate to top ends of the coils to allow more freedom of movement of the top or upper ends of the coils and with respect to adjacent coils, and to reduce load transfer or cratering of the coil springs about the locus of the force vector.

Abstract: Encased coil units with advance conforming properties have various interconnections and structures between individually encased or wrapped coils. In the various embodiments, encasement structures between coils such as closure or attachment of sheet material or fabric, which encase the coils, are configured to allow and enhance independent movement of coils with respect to adjacent coils and remote coils of the unit. Modifications in the sheet material or fabric which encases the coils include variations in the points of connection or disconnection between adjacent coils, proximate to top ends of the coils to allow more freedom of movement of the top or upper ends of the coils and with respect to adjacent coils, and to reduce load transfer or cratering of the coil springs about the locus of the force vector.

Abstract: Encased coil units with advance conforming properties have various interconnections and structures between individually encased or wrapped coils. In the various embodiments, encasement structures between coils such as closure or attachment of sheet material or fabric, which encase the coils, are configured to allow and enhance independent movement of coils with respect to adjacent coils and remote coils of the unit. Modifications in the sheet material or fabric which encases the coils include variations in the points of connection or disconnection between adjacent coils, proximate to top ends of the coils to allow more freedom of movement of the top or upper ends of the coils and with respect to adjacent coils, and to reduce load transfer or cratering of the coil springs about the locus of the force vector.

Abstract: Engineered foam components for mattresses reduce tension forces in the foam and in the horizontal plane or block planar pieces, and improve the conformance and motion separation characteristics of foam support systems. The tension relief foam pad is a generally rectangular piece of foam having a top surface and a bottom surface. The length and width measurements of engineered foam pieces are substantially equal to that of a mattress with which it is to be used. Depending on the arrangement of the tension relief foam pad within the mattress construction, either the top or bottom surface contains a plurality of continuous cuts, slits or openings arranged in a checkerboard or other patterns with an opposite planar uncut surface.

Abstract: Low shear mattress topper constructions have multiple internal topper layers with at least one intermediate layer made of a low shear material and disposed between foam or other layers to reduce frictional shear forces and enable a greater degree of lateral displacement between the topper layers.