A seating device (1) with a reclining function comprising a back frame (4) which provides a significant reduction in the complexity of the system, at the same time as it gives the user increased comfort both in an upright (sitting) position and in a reclining position. The back frame (4) comprises in particular two types of resilient elements (7, 8) and rotatable fasteners (6) which provide adaptive support to the lumbar spine in both a sitting and reclining position.

A mattress system includes a subframe having fold joints. The subframe includes a foot section, a transition section, a body section, and a head section that are separated by the fold joints. The subframe includes an upper portion and a lower portion. The mattress system further includes a first strap and a second strap. The first strap extends through the foot section from the upper portion of the subframe to a lower portion of the subframe. The second strap extends through the foot section from the lower portion of the subframe to an upper portion of the subframe such that the first and second straps form an X.

A dual-core mattress with removable and replaceable components of different firmness which can be configured to have different heights and which allows the cover to be removed and washed. The upper portion of the mattress can be removed and replaced.

A seat having a seat bottom assembly supporting a diaphragm between side members of a structural frame of the seat. The seat bottom assembly including a diaphragm having a first flank portion, a main portion and a second flank portion arranged between the side members, the main portion being between the flank portions. The diaphragm is supported such that the main portion of the diaphragm contains an effective length of stretchable material of the diaphragm when supporting an occupant of the seat.

The present invention has disclosed late-model compressible furniture in the technical field of furniture and sofas, which comprises a sofa cover, a foam layer and a spring assembly, wherein the foam layer is sleeved inside the sofa cover, the spring assembly is sleeved inside the foam layer, the spring assembly comprises a spring-fixing bag, and a spring means fixedly connected inside the spring-fixing bag. In the device, the foam layer and the spring assembly are configured in their entirety, so that before transportation a spring compressor is used to compress the sofa in its entirety, providing convenience for transportation and avoiding inconvenient transportation due to excessive volume, after transportation to the designated location, the compressed package opens to enable the spring means disposed inside it to quickly return to a full shape.