Spring modules for an adjustable sleeping system. At least some of the example embodiments are spring modules comprising: a spring rail, and a plurality of adjustable spring assemblies spaced along the length of the spring rail. Each adjustable spring assembly may comprise: a motor with a stator coupled to the spring rail, a lead screw coupled to the rotor of the motor, and the lead screw extending above an upper surface of the spring rail, a spring plate coupled to the lead screw, and a main spring coupled to the spring plate. Thus, the weight or force carried by each adjustable spring assembly along the spring rail is separately adjustable by a bed controller.

A voice-control intelligent mattress with hardness capable of being adjusted in multiple stages comprises an upper-layer soft pad, a hardness-adjusting device and a lower layer or a multi-layered hard pad that are sequentially arranged from top to bottom; the hardness-adjusting device comprises two adjusting units symmetrically arranged with the transverse center line of the present invention, and a voice-control module connected with the adjusting unit through a wire for controlling the starting and stopping of the adjusting unit; two adjusting frames connected with the adjusting unit are symmetrically arranged on the two sides of the adjusting unit; an elastic mesh belt installed on the adjusting frames is tightened or loosened along the expansion or contraction of the adjusting frames; the hardness of the mattress can be precisely adjusted so that the various demands of users can be satisfied.

A voice-control intelligent mattress with hardness capable of being adjusted in multiple stages comprises an upper-layer soft pad, a hardness-adjusting device and a lower layer or a multi-layered hard pad that are sequentially arranged from top to bottom; the hardness-adjusting device comprises two adjusting units symmetrically arranged with the transverse center line of the present invention, and a voice-control module connected with the adjusting unit through a wire for controlling the starting and stopping of the adjusting unit; two adjusting frames connected with the adjusting unit are symmetrically arranged on the two sides of the adjusting unit; an elastic mesh belt installed on the adjusting frames is tightened or loosened along the expansion or contraction of the adjusting frames; the hardness of the mattress can be precisely adjusted so that the various demands of users can be satisfied.

An apparatus is disclosed for adjusting an active length of a plurality of interwoven support elements of a weight bearing surface to conform to contours of a user's anatomy. The weight bearing surface overlies a frame to which the plurality of interwoven support elements are connected. The apparatus includes an adjustment mechanism connected to one of the plurality of interwoven support elements, wherein the adjustment mechanism is attached or releasably attached to the frame. The adjustment mechanism allows the active length of the connected interwoven support element to change as a user bears upon the weight bearing surface, thereby conforming the weight bearing surface to the contours of a user's anatomy. In another aspect, a method for adjusting an active length of at least some of a plurality of interwoven support elements of a weight bearing surface to conform to contours of a user's anatomy is disclosed.

An apparatus is disclosed for adjusting an active length of a plurality of interwoven support elements of a weight bearing surface to conform to contours of a user's anatomy. The weight bearing surface overlies a frame to which the plurality of interwoven support elements are connected. The apparatus includes an adjustment mechanism connected to one of the plurality of interwoven support elements, wherein the adjustment mechanism is attached or releasably attached to the frame. The adjustment mechanism allows the active length of the connected interwoven support element to change as a user bears upon the weight bearing surface, thereby conforming the weight bearing surface to the contours of a user's anatomy. In another aspect, a method for adjusting an active length of at least some of a plurality of interwoven support elements of a weight bearing surface to conform to contours of a user's anatomy is disclosed.

An elastic device providing means of controlling its stiffness by controlling the tension of the string or group of springs resulting in adjustable transverse stiffness of it, arranged in matrix to enable the control of spatial stiffness of a 2D matrix in unlimited resolution.

A mattress assembly generally includes a tension adjustable and stretchable fabric panel coupled to a rail system. Axial tension of the stretchable fabric panel can be adjusted to change a firmness property associated with the mattress assembly.

A mattress assembly generally includes a tension adjustable and stretchable fabric panel coupled to a rail system. Axial tension of the stretchable fabric panel can be adjusted to change a firmness property associated with the mattress assembly.

A voice-control intelligent mattress with hardness capable of being adjusted in multiple stages comprises an upper-layer soft pad, a hardness-adjusting device and a lower layer or a multi-layered hard pad that are sequentially arranged from top to bottom; the hardness-adjusting device comprises two adjusting units symmetrically arranged with the transverse center line of the present invention, and a voice-control module connected with the adjusting unit through a wire for controlling the starting and stopping of the adjusting unit; two adjusting frames connected with the adjusting unit are symmetrically arranged on the two sides of the adjusting unit; an elastic mesh belt installed on the adjusting frames is tightened or loosened along the expansion or contraction of the adjusting frames; the hardness of the mattress can be precisely adjusted so that the various demands of users can be satisfied.

A system for adjusting the firmness of a substrate configured to support a subject includes a first rod configured to be movable by a mechanism, a second rod parallel to and spaced from the first rod a distance that spans a majority of a dimension of the substrate, and flexible straps extending between the first rod and the second rod and attached to the first rod and the second rod at respective ends of each flexible strap. The mechanism is configured to move the first rod in a first direction to increase tension on the flexible straps and move the first rod in a second direction to decrease tension on the flexible straps. The mechanism can be manually operated by the subject or can be a motor that is controlled by a controller.