A modular multi-zone mattress and related method of design for which a plurality of mattress modules are adjoined to define a sleep surface having a variable deformability. A number of the mattress modules and a deformability of each mattress module are tailored to a unique body shape and weight distribution of a mattress user to provide at least one of an optimized body posture and an optimized contact pressure distribution over the sleep surface. Pressure factors include a weight and a morphologic profile of the mattress user, and optionally, a sleep position of the mattress user.

Sleep systems and devices including a mattress conversion device and a mattress are disclosed. The mattress conversion device includes a base layer, one or more side portions, and a cavity defined by the base layer and the one or more side portions. The mattress conversion device can slidingly received the mattress. A method for recycling an existing mattress is also disclosed.

Sleep systems and devices including a mattress conversion device and a mattress are disclosed. The mattress conversion device includes a base layer, one or more side portions, and a cavity defined by the base layer and the one or more side portions. The mattress conversion device can slidingly received the mattress. A method for recycling an existing mattress is also disclosed.

A cellular furniture construction system that includes: a set of voxels, that form a lattice providing the shape and structure of the furniture construction, wherein regions of the furniture construction comprise distinct three-dimensional lattice arrangements of different types of voxels, providing distinct stress/strain properties to the regions; wherein each voxel comprises: a voxel type, defined by the stress and strain property of the voxel, and a discrete cellular three-dimensional structure, enabled to connect with other voxels along any one of the voxel interface surfaces. The system functions as a lightweight, modular, furniture construction system, wherein the system leverages arrangements of different voxel types to construct a furniture structure with desired stress/strain properties to regions of the structure.

A cellular furniture construction system that includes: a set of voxels, that form a lattice providing the shape and structure of the furniture construction, wherein regions of the furniture construction comprise distinct three-dimensional lattice arrangements of different types of voxels, providing distinct stress/strain properties to the regions; wherein each voxel comprises: a voxel type, defined by the stress and strain property of the voxel, and a discrete cellular three-dimensional structure, enabled to connect with other voxels along any one of the voxel interface surfaces. The system functions as a lightweight, modular, furniture construction system, wherein the system leverages arrangements of different voxel types to construct a furniture structure with desired stress/strain properties to regions of the structure.

Provided for is a mattress comprising a first layer comprising a first firm layer and a first soft layer, a second layer comprising a second firm layer and a second soft layer, where the second layer and the first layer are in horizontal adjacent contact. The mattress may further comprise a base layer comprising a base top layer and a base bottom layer, where the base layer and the first layer are in vertical adjacent contact, and where the base layer and the second layer are in vertical adjacent contact. The mattress may further comprise a cover comprising a cover top, a cover bottom, and a zipper, where the zipper may separate the cover top from the cover bottom, where a band may be disposed on an inside surface of the cover top, where the band may mask a gap between the first layer and the second layer.

Provided for is a mattress comprising a first layer comprising a first firm layer and a first soft layer, a second layer comprising a second firm layer and a second soft layer, where the second layer and the first layer are in horizontal adjacent contact. The mattress may further comprise a base layer comprising a base top layer and a base bottom layer, where the base layer and the first layer are in vertical adjacent contact, and where the base layer and the second layer are in vertical adjacent contact. The mattress may further comprise a cover comprising a cover top, a cover bottom, and a zipper, where the zipper may separate the cover top from the cover bottom, where a band may be disposed on an inside surface of the cover top, where the band may mask a gap between the first layer and the second layer.

The present disclosure provides for a coated flexible open-cell polyurethane foam structure. The coated flexible open-cell polyurethane foam structure includes a flexible open-cell polyurethane foam having a first major surface and a second major surface opposite the first major surface. The coated flexible open-cell polyurethane foam structure further includes a flexible heat conductive material covering 30 to 90 percent (cov., expressed in %) of a surface area of the first major surface of the flexible open-cell polyurethane foam in a predefined shape to provide one or more gaps exposing the flexible open-cell polyurethane foam between defined edges of the flexible heat conductive material, where each gap of the one or more gaps has a gap width according to Formula I: gap width (mm)≤−0.196×cov. (%)+20.6 (Formula I) where a total surface area of the one or more gaps provides 70 to 10 percent of the surface area of the first major surface of the flexible open-cell polyurethane foam.

The present disclosure provides for a coated flexible open-cell polyurethane foam structure. The coated flexible open-cell polyurethane foam structure includes a flexible open-cell polyurethane foam having a first major surface and a second major surface opposite the first major surface. The coated flexible open-cell polyurethane foam structure further includes a flexible heat conductive material covering 30 to 90 percent (cov., expressed in %) of a surface area of the first major surface of the flexible open-cell polyurethane foam in a predefined shape to provide one or more gaps exposing the flexible open-cell polyurethane foam between defined edges of the flexible heat conductive material, where each gap of the one or more gaps has a gap width according to Formula I: gap width (mm)≤−0.196×cov. (%)+20.6 (Formula I) where a total surface area of the one or more gaps provides 70 to 10 percent of the surface area of the first major surface of the flexible open-cell polyurethane foam.

A topper placed on a bed or a mattress, for distributing a load, includes a top cover forming a top of the topper, an upper memory foam provided under the top cover, at least one cushioning member provided under the upper memory foam and configured to distribute a load transmitted through the upper memory foam, a lower memory foam provided under the cushioning member, as a component corresponding to the upper memory foam, and a bottom cover provided under the lower memory foam, manufactured as a component corresponding to the top cover, and configured to support the cushioning member.