The invention relates to the field of beds or seats. In particular, the invention relates to a flexible element (10) stiffness that is adjustable stiffness along a compression axis (Z), the element including a compression spring (50). In order to enable the stiffness of the stiffness element (10) to be adjusted, it further comprises both a mechanism (150) coupled to the compression spring (50) so as to be actuated by compression of the compression spring (50) along the compression axis (Z) to move in a direction other than the direction of the compression axis (Z), and also an adjustment device for selectively restricting or releasing the movement of the mechanism (150). The invention also provides a unit (200) comprising a plurality of such flexible elements (10), and a method of adjusting the stiffness of the flexible element (10).

A mattress includes a foam layer positioned over a platform including a bladder having top and bottom surface joined by threads such that upon inflation the platform stiffens due to strain locking. The foam layer may include an upper layer and a lower layer that is firmer than the upper layer. The foam layer may include a polyurethane foam, such as memory foam. Zipper portions on the edges of the platform may secure to zipper portions on edges of the foam layer. Feet removably mount to a lower surface of the platform, which may include protrusions or straps for securing to the feet. The platform layer may be deflated and rolled with the foam layer for transport and storage.

The invention discloses a packaging structure of a folding bed and a packaging method thereof. The packaging structure includes a folding bedstead including at least three unit frames, the adjacent unit frames are mutually hinged, and a mattress capable of being rolled up. When the folding bedstead is packaged, a space for receiving the rolled mattress is formed by the unit frames. The packaging method includes the following steps: S1, folding the unit frames of the folding bedstead to form a space; S2, rolling up the mattress and putting the rolled mattress into a space formed by the unit frame; S3, putting the folded folding bedstead into the box. The invention method allows for the most space efficient packing possible thereby reducing the amount of space occupied by the bed and reducing transportation costs.

Adjustable sleeping system with force control. At least one example embodiment is a method of operating a sleeping system, the method including: sensing an area of a sleeping surface of the sleeping system, the area upon which a person resides, the sensing by a bed controller communicatively coupled to an array of adjustable spring assemblies arranged such that a top of each adjustable spring assembly defines an upper surface parallel to the sleeping surface; and driving a plurality of the adjustable spring assemblies being the adjustable spring assemblies beneath the area, the driving to control force distribution among the plurality of the adjustable spring assemblies.

An internal spring system resiliently supports a mattress in an item of furniture. The spring system includes a system of sinuous springs arranged between upper and lower wire grids. A movable extender assembly is mounted on the grids to accommodate a longitudinal shift between the upper and lower grids during folding of the spring system between open and closed positions.

Multi-layered fabric laminates, such as, for example, those used as filler cloths and/or in manufacturing mattress foundations, are described along with methods of making and/using the same.

Multi-layered fabric laminates, such as, for example, those used as filler cloths and/or in manufacturing mattress foundations, are described along with methods of making and/using the same.

Mattresses are packaged by successively rolling two compressed mattresses into a roll in which a rolling wrapper forms a spiral when viewed from an end of the roll. The bottom surface of a first mattress is placed on the wrapper such that the wrapper wraps around a first end of the mattress. The first end is then inserted between the bars of a mechanical roller. The first end is bent over onto the top surface of the mattress, and the mattress is rolled. The bottom surface of a second mattress is placed on the wrapper, and the first mattress is further rolled until successive portions of the bottom surface of the first mattress become adjacent to successive portions of the top surface of the second mattress. The wrapper is cut, and a first location near the cut edge is taped to a second location one revolution earlier on the wrapper.

Mattresses are packaged by successively rolling two compressed mattresses into a roll in which a rolling wrapper forms a spiral when viewed from an end of the roll. The bottom surface of a first mattress is placed on the wrapper such that the wrapper wraps around a first end of the mattress. The first end is then inserted between the bars of a mechanical roller. The first end is bent over onto the top surface of the mattress, and the mattress is rolled. The bottom surface of a second mattress is placed on the wrapper, and the first mattress is further rolled until successive portions of the bottom surface of the first mattress become adjacent to successive portions of the top surface of the second mattress. The wrapper is cut, and a first location near the cut edge is taped to a second location one revolution earlier on the wrapper.

A spring bed with quick assembly and disassembly includes two cross bars, a plurality of vertical bars, a plurality of springs, and a plurality of fixing bases. The two cross bars and the vertical bars are parallel arranged with spacing. The two ends of the vertical bars are detachably assembled to the two cross bars. Each vertical bar is disposed with a plurality of fixing bases. The springs are detachably assembled to the fixing bases. Two ends of the vertical bar are detachably connected to the two cross bars.