A modular sleep apparatus that enables customization of a conventional mattress. The modular sleep apparatus includes a customizable mattress pad casing having pockets into which various inserts may be placed. The more the number of pockets, the greater customization the mattress pad allows. The inserts themselves can be of varying thickness, firmness, and material. In some embodiments, the inserts may also be placed directly over a conventional mattress and held in place with a fitted sheet. In other embodiments, the inserts are placed directly into pockets or envelopes in the top layer of a mattress. In other embodiments, the mattress pad casing is pre-assembled with inserts.

A mattress according to the invention is formed from a plurality of layers stacked in a thickness direction thereof, and includes a tactile layer that is positioned on an upper side in use, and a cushion layer that is positioned on a lower side in use. The tactile layer and the cushion layer each contain an elastic body constituted of a filament three-dimensional assembly. The elastic body contained in the cushion layer has a larger resiliency than that of the elastic body contained in the tactile layer, and is 100 N or more and 200 N or less. The elastic body contained in the tactile layer has a resiliency of 10 N or more and 80 N or less. The tactile layer shows a constant sinking displacement regardless of load.

A mattress assembly includes a cover, a spring pack positioned within the cover, and an inner core positioned within the cover. The inner core includes opposite first and second portions. The first portion has a firmness that is different than a firmness of the second portion. The inner core is configured to be moved between a first configuration in which the first portion directly engages the spring pack and a second configuration in which the second portion directly engages the spring pack to alter a firmness of a sleep surface of the mattress. Methods of use are disclosed.

A mattress core material includes a plurality of flat cushion bodies stacked in a thickness direction thereof, including at least a first cushion body which becomes an upper part; and a second cushion body which becomes a lower part, the first and second cushion bodies including a three-dimensional filaments-linked structure, each including a high-density upper surface layer having high filament density; a high-density lower surface layer having high filament density; and a low-density elastic layer, a high-density intermediate layer being formed in an intermediate position in the thickness direction of the mattress core material in which the first and second cushion bodies are stacked as upper and lower parts in the thickness direction, respectively, the high-density intermediate layer having a function of distributing a vertically applied compressive stress, along a curvature of an interface between the first and second cushion bodies in the high-density intermediate layer.

A three-dimensional striped structure is provided which is formed by bonding continuous filaments in random in loops, has a longitudinal direction corresponding to an extruding direction, a lateral direction and a thickness direction perpendicular to the extruding direction, and is comprised of a polyethylene thermoplastic resin, a polyester thermoplastic elastomer or a mixture of a polyethylene thermoplastic resin and a polyethylene thermoplastic elastomer. The three dimensional striped structure has an impact resilience of not lower than 13 cm, a hysteresis loss of not higher than 34% and not lower than 13%, and a thermal expansion rate of 0 to 8% in the longitudinal direction before and after a hot-air drying test, and does not shrink during high-temperature sterilization.

The present application provides a cushion having a core layer and a quilt support/comfort layer. The core layer may comprise innersprings, foams, air cells, or combinations thereof. The support/comfort layer comprises a sleep layer that simulates a conventional quilted fabric layer. The sleep layer includes a thick, comfort fabric and a backing fabric, which backing fabric may be the same as the thick, comfort fabric. The sleep layer is formed by coupling the thick, comfort fabric to the backing fabric to form a plurality of individual pockets in which micro spring coils are placed. The micro spring coils have less uncompressed height than conventional innerspring coils. The sleep layer coupling is formed by spot coupling without using a metal needle to stitch the layers together. In other words, the spot coupling may comprise an adhesive or weld.

A pre-conditioned three dimensionally polymeric fiber matrix layer for use in a bedding product such as a mattress is disclosed. The pre-conditioned three dimensionally polymeric fiber matrix layer generally includes an extruded three dimensional polymeric fibrous layer and a foam material, e.g., polyurethane, latex or the like, disposed within the fibrous layer and occupying at least a portion of the free volume in the layer, wherein a portion of the coupling points and the randomly oriented polymer fibers are broken so as to change a mechanical property of the pre-conditioned three dimensionally polymeric fiber matrix layer relative to the three dimensionally polymeric fiber matrix layer without pre-conditioning.

A three dimensional polymeric fiber matrix layer including a phase change material coated thereon for use in a bedding product such as a mattress is disclosed. The phase change material is selected to provide improved cooling properties, which along with the free volume provided by the three dimensional polymeric fiber matrix markedly improves temperature management when used in a bedding product.

The present invention provides a thermal insulation filling material and preparation method thereof and a thermal insulation product, and pertains to the field of thermal insulation filling materials. The thermal insulation filling material of the present invention includes: a bulk fibre; and a spherical fibre assembly, where a water-repellent layer is formed on a surface of the bulk fibre and of the spherical fibre assembly, and a weight ratio of the bulk fibre to the spherical fibre assembly is between about 30:70 and about 70:30. The thermal insulation filling material is good in wash durability, and has comprehensive performance such as better blowable processability, quick-drying property, compression-resilience property, and thermal insulation property, etc. The method for preparing the thermal insulation filling material includes: adding a water-repellent agent in the process of gas-flow mixing the bulk fibre and the spherical fibre assembly, and then heating to form a water-repellent layer on the surface of the bulk fibre and of the spherical fibre assembly.

A rest support with comfort effect is provided including a first layer, a second layer and a third layer. The second layer may be between the first layer and the third layer. The first and third layer may be composed of a lesser stiffness than the second layer and at least one out of the first and third layer includes a cohesive stratum made by thermo-moulding with a material, such as down, feathers, chips, flakes, fibres and the like.