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.

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 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.