Modular sofa with adjustable seat

A piece of furniture comprising:

• a base comprising:
• a frame;
• and
• mounting brackets mounted inwardly to the frame, each one of the mounting brackets comprising a mounting rod;
• and
• a cushion comprising:
• a cushion body;
• and
• a pair of mounting braces extending from the cushion body and having an extremity distant from the cushion body, the extremity of each of the mounting braces comprising a slit in which the rod is positioned as the cushion is rotated around the rod until the cushion stands in place substantially vertically.

A piece of furniture comprising:

• a base comprising:
• a frame;
• and
• mounting brackets mounted inwardly to the frame and each comprising a first mounting structure;
• and
• a cushion comprising:
• a cushion body;
• and
• a pair of mounting braces extending from the cushion body, each comprising a second mounting structure complementary to the first mounting structure and an abutment face, wherein the complementary mounting structures are to interface with each other in a first position, and to remain interfaced when rotating the cushion until the abutment face of the mounting braces abuts one of the frame and the mounting bracket and the cushion stands substantially vertically.

A piece of furniture comprising:

• a base comprising:
• longitudinal structures;
• a pair of first transversal structures mounted to the longitudinal structures;
• and
• a first pair of arms mounted to a respective one of the first transversal structures;
• a pole connecting the arms;
• a seat cushion to be laid over the base;
• wherein the arms are movable between a first position and a second position, the first position and the second position providing therethrough one of:
• an adjustable support for the seat cushion;
• and
• an adjustable slope for the seat cushion,
• wherein the arms are mounted to the first transversal structures through trunnions, and
• wherein the first pole is mounted to the arms distant from the trunnions.