By taking into account the difficulty in smoothly bending along the shape of, for example, a care bed, there is provided a three-dimensional net-like structure made from polyester having a swelling ratio dependent on a shear rate such as to be 1.10 to 1.38 at a shear rate of 60.8 sec.sup.1 and 1.17 to 1.43 at a shear rate of 608 sec.sup.1 and having an MFR of 3 to 35 g/10 min and a density of 1.01 to 1.60 g/cm.sup.3 and configured to have a spring structure of filaments randomly brought into contact with and tangled with one another, have a three-dimensional striped sparse-dense configuration in a lateral direction relative to an extrusion direction. The swelling ratio is shown as D.sub.2/D.sub.1 against shear rate when a molten thermoplastic resin is extruded to filaments from a capillary having a tube inner diameter D.sub.1 of 1.0 mm and a length of 10 mm and D.sub.2 denotes a diameter of cross section of the filaments extruded and cooled down.

A sleeping apparatus comprising a textile fiber shell, a plurality of adjustable straps coupled to the textile fiber shell and a plurality of anchors, wherein each anchor is coupled to one of the plurality of adjustable straps, wherein the anchors are configured to attach to one or more structures such that the textile fiber shell forms a flat sleeping surface.

One exemplary aspect of the present disclosure relates to, among other things, a tunable cushion including a core made of a polymer material, and at least one topper layer adjacent the core, which is also made of a polymer material. Further, the core and the at least one topper layer provide a cushion assembly having a support factor of less than or equal to 4 with an Indentation Load Deflection (ILD) determined using a 4 inch batt sample of the cushion assembly.

One exemplary aspect of the present disclosure relates to, among other things, a tunable cushion including a core made of a polymer material, and at least one topper layer adjacent the core, which is also made of a polymer material. Further, the core and the at least one topper layer provide a cushion assembly having a support factor of less than or equal to 4 with an Indentation Load Deflection (ILD) determined using a 4 inch batt sample of the cushion assembly.

A method and device for carrying out the method of converting waste such as thermally bonded polyester fiber to bed cushioning. Such waste is fed to a fiber lofter which forms lofted fiber. The lofted fiber is pneumatically transferring to a hopper, and from the hopper to an injector, the injector having a lofted fiber input nozzle and output nozzle, the output nozzle being a low friction tube.

A portable mat capable of blocking air convection and temperature radiation is disclosed. The portable mat is an inflatable mat, and includes a first outer covering layer and a second outer covering layer that are connected by a plurality of connecting members each in the form of a thin and light ring. Side pieces of the connecting members each have different widths according to high and low positions. A plurality of blocking layers of a blocking unit is fitted on the connecting members. The block layers have openings with different widths. The openings of the blocking layers are different in size corresponding to the different widths of the connecting member, so that the blocking layers are positioned at different heights to form a plurality of spaced space inside the mate, thereby blocking air convection and reducing temperature radiation.

A portable mat capable of blocking air convection and temperature radiation is disclosed. The portable mat is an inflatable mat, and includes a first outer covering layer and a second outer covering layer that are connected by a plurality of connecting members each in the form of a thin and light ring. Side pieces of the connecting members each have different widths according to high and low positions. A plurality of blocking layers of a blocking unit is fitted on the connecting members. The block layers have openings with different widths. The openings of the blocking layers are different in size corresponding to the different widths of the connecting member, so that the blocking layers are positioned at different heights to form a plurality of spaced space inside the mate, thereby blocking air convection and reducing temperature radiation.

A mattress with adjustable hardness and comfort levels includes a surface cover layer, a first comfort layer, a second comfort layer and a hollow space made of foam at the bottom. This mattress also provides the flexibility for consumers to change the first and second comfort layers in the mattress to achieve the most appropriate hardness level according to his body profile independently for the users on the left and right sides of the mattress. Thus, consumers may change the hardness and comfort levels of their mattress easily by changing the comfort layers according to their desires anytime.

The disclosed technology includes an internal support structure for providing structural stability to an inflated airbed. The internal support structure may include an internal support wall connected to side panels by one or more side support beams. The internal support structure may further include corner support walls and a plurality of internal support beams to provide additional support.

A mattress includes a spring extending between first and second points to provide a first spring rate in a first direction. A polymer fiber structure is provided between the first and second points and adjoins the spring. The polymer fiber structure includes fibers interlinked with one another to provide the second spring rate in the first direction. An example method of manufacturing a mattress is provided that includes arranging springs to provide a mattress innerspring. A polymer fiber structure is introduced in a first state to the innerspring to provide an assembly. The assembly is further processed and the polymer fiber structure is simultaneously altered from the first state to a second state.