A ready-to-assemble bed foundation includes a pair of exterior side beams having two ends and a pair of transverse end beams having two ends. The beams can be assembled on site into a rectangular or square frame by joining one end of each side beam with one end of a transverse end beam. A drawer can be positioned between upper and lower surfaces. A protruding block on one beam is sized to fit into a gap between plates for registration of the beam to which it is being joined. At least one of the plates has a hole and the protruding block has an embedded threaded pin receiver positioned to align with the hole in the plate when a corner configuration is formed by the beams. A threaded pin passes through the hole and into the threaded pin receiver to retain the beams in a corner configuration. A single layer assembly can also employ fasteners at each corner.

A customizable mattress includes a chassis defining a cavity. A spring pack is removably positioned within the cavity. A top pad removably covers at least a portion of the spring pack. In some embodiments, kits and methods of use are provided.

A magnetically attached mattress and foundation system comprising a foundation containing a magnetic portion and a mattress containing a magnetic portion. The magnetic portions each contain magnetizable or magnetically responsive materials.

A protective member such as a helmet includes an outer layer and an inner layer interconnected by multiple connectors, such as extension springs, under tension along their longitudinal axis. The connectors absorb energy from an impact force by resisting further tension along their longitudinal axis and allow the outer layer and inner layer to move relative to each other. In the helmet application, the head of a user experiences less impact force, reduced change in momentum or position of the head and neck, reduced head and neck loads and reduced amounts of linear and rotational acceleration. The protective member can be used in numerous applications and environments, including for participants in sports, in applications including bumpers, passenger cabins, car seats and beds.

A protective member such as a helmet includes an outer layer and an inner layer interconnected by multiple connectors, such as extension springs, under tension along their longitudinal axis. The connectors absorb energy from an impact force by resisting further tension along their longitudinal axis and allow the outer layer and inner layer to move relative to each other. In the helmet application, the head of a user experiences less impact force, reduced change in momentum or position of the head and neck, reduced head and neck loads and reduced amounts of linear and rotational acceleration. The protective member can be used in numerous applications and environments, including for participants in sports, in applications including bumpers, passenger cabins, car seats and beds.

A spring module for a furniture cushion includes a conical spring and a double-layer flexible sleeve. The double layer flexible sleeve has a frustoconical first outer layer having a first closed top end, a first open bottom end, and a first outwardly extending flange at the first open bottom end. A frustoconical second inner layer inside the frustoconical first outer layer has a second closed top end, an open second bottom end, and a second outwardly extending flange at the open second bottom end of the frustoconical second inner layer. The conical spring is between the first outer layer and the second inner layer. The spring module may be attached to a base having locking structures for locking adjacent spring modules together.

An upholstered article is described, especially construed as a mattress 1.1, with a lower layer 2.1 and an upper layer 3.1 and intermediate elements 4.1, 4.2 arranged between the lower layer 2.1 and the upper layer 3, 3.1, wherein the intermediate elements 4.1, 4.2 each comprise a profile axis 6 extending transversely to the longitudinal direction of the upholstered article, wherein, in a cross section 7.1 perpendicular to the profile axis 6, a first intermediate element 4.1, 4.2 provides a first outer contour 8.1 along its periphery, and a second intermediate element 4.2 comprises the same outer contour along its periphery as the first intermediate element 4.1 or a second outer contour 9.1, wherein the first outer contour 8.1 comprises a first contour portion 10.1 with a nonlinear course facing towards the upper layer 3.1 or towards the lower layer 2.1 and wherein, in the first outer contour 8.1 and/or the second outer contour 9.1, at least one counter-contour region 11.1 is present, of which the course is complementary at least in one part to that of the first contour portion 10.1.

A spring module for a spring cushion for furniture. includes a base (20), an end cap (30) and a spring (10) arranged between the base and the end cap. The end cap has a flexible connection portion (33) and is configured to be detachably fixed to the base (20). The flexible connection portion (33) is located radially inside the spring (10). The spring module provides improved stability. The spring cushion has a simple structure and is easy to assemble and disassemble. The disassembled spring modules can be compressed or stacked and nested to save storage and transportation space

An elastic pad for furniture includes a mounting layer, a plurality of elastic modules, an elastic balance net and a flexible cover. A plurality of raised blocks are arranged on a top surface of the mounting layer. Each elastic module is nested on one of the raised blocks, where an outer diameter of the raised block is greater than or equal to an inner diameter of the elastic module at a corresponding height. This allows the elastic modules to be mounted independently of one another. For example, if an elastic module is damaged, it can be removed for repair, without removing other elastic modules.

A spring module includes a spring and a spring bracket for accommodating the spring. The spring bracket may have a base, an end cover and a flexible connecting part connecting the base and the end cover. The spring may be fixed in the spring bracket with a predetermined initial pressure. The spring module may be used in a spring cushion for furniture.