A furniture item includes a body including first side plates in a first direction, a second side plate on a first side in a second direction, and a horizontal stand that forms a horizontal surface extending from the second side plate; a floor plate part that is enabled to slide between a first position and a second position that is on the second side relative to the first position; a mattress part that is enabled to be placed on the floor plate part; and a cushion element that is enabled to be placed on the mattress part. An upper side surface of the mattress part extends at a height lower than a lower end of the horizontal stand, and a space is formed under a horizontal surface of the horizontal stand in a state in which the floor plate part is at the second position.

An expandable seating furniture comprising a center section for providing a first seating position, the center section providing center chair legs and at least one lateral section, concealable into the center section, each of the at least one lateral section being laterally expandable for providing one or more additional seating positions. The center section conceals one or more lateral chair legs, and may also conceal back support and/or armrest, for each of the at least one lateral section when the expandable seating furniture is unexpanded. The lateral section(s) may be concealable into the center section as interleaved sliding sections (e.g., along a seating plane and/or vertically).

An expandable seating furniture comprising a center section for providing a first seating position, the center section providing center chair legs and at least one lateral section, concealable into the center section, each of the at least one lateral section being laterally expandable for providing one or more additional seating positions. The center section conceals one or more lateral chair legs, and may also conceal back support and/or armrest, for each of the at least one lateral section when the expandable seating furniture is unexpanded. The lateral section(s) may be concealable into the center section as interleaved sliding sections (e.g., along a seating plane and/or vertically).

A variety of apparatuses are disclosed, including, in one embodiment, a sofa bed, that includes opposing arm rest sections, a back section, and a pull-out section, that includes a honeycomb structure disposed between the opposing arm rest sections, where the honeycomb structure of each pull-out section is configured to change between an extended and a non-extended position.

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.

A cushion, mattress or mattress section for a convertible furniture article defines a plurality of apertures, such as slits or slots or recesses, extending into or through the cushion or mattress section that are cut in a direction at an angle to the first length of the mattress section. The cushion or mattress section expands from its first length to a second length that is longer than the first length upon applying a stretching force to the cushion or mattress section and thereby positioning the mattress section into the open or sleeping configuration. Expansion is due to resilience of the material forming the mattress or mattress section in combination with opening of the apertures. The sleeping surface of the mattress or mattress section may remain substantially planar in both the open (sleeping) position and closed (seating) position.

A cushion, mattress or mattress section for a convertible furniture article defines a plurality of apertures, such as slits or slots or recesses, extending into or through the cushion or mattress section that are cut in a direction at an angle to the first length of the mattress section. The cushion or mattress section expands from its first length to a second length that is longer than the first length upon applying a stretching force to the cushion or mattress section and thereby positioning the mattress section into the open or sleeping configuration. Expansion is due to resilience of the material forming the mattress or mattress section in combination with opening of the apertures. The sleeping surface of the mattress or mattress section may remain substantially planar in both the open (sleeping) position and closed (seating) position.

A furniture member may include a base frame, a seat bottom and an ottoman assembly. The seat bottom is attached to the base frame and defines a seating surface. The ottoman assembly may include a drive assembly that moves an ottoman platform relative to the seat bottom and the base frame among a retracted position, an extended position and a raised position. The ottoman platform includes a support surface that faces upward and away from a ground surface in the retracted, extended and raised positions. The ottoman platform is disposed beneath the seating surface in the retracted position and moves linearly in a horizontal direction from the retracted position to the extended position. The ottoman platform moves linearly in a vertically upward direction from the extended position to the raised position.

A furniture member may include a base frame, a seat bottom and an ottoman assembly. The seat bottom is attached to the base frame and defines a seating surface. The ottoman assembly may include a drive assembly that moves an ottoman platform relative to the seat bottom and the base frame among a retracted position, an extended position and a raised position. The ottoman platform includes a support surface that faces upward and away from a ground surface in the retracted, extended and raised positions. The ottoman platform is disposed beneath the seating surface in the retracted position and moves linearly in a horizontal direction from the retracted position to the extended position. The ottoman platform moves linearly in a vertically upward direction from the extended position to the raised position.

Provided are an extendable seat frame and a furniture thereof. The extendable seat frame includes: a fixed base; a seat frame main body, configured to move relatively above the fixed base; and an extension apparatus, configured to be rotatably connected to the fixed base and rotatably connected to the seat frame main body so as to enable the extendable seat frame to switch between a retracted state and an extended state. Further, the extension apparatus includes at least an extension part, one end of the extension part is rotatably connected to an end of the seat frame main body that is away from an extending direction, and the extension part is configured to drive the extension part to flip in response to the seat frame main body moving towards the extending direction.