Seat (S), in particular an aircraft seat, comprising: a seat support structure comprising at least one seat surface (1.1) with a seat surface frame (1.1.1) and a backrest (1.2) with a backrest frame (1.2.1) being pivotable relative to the seat surface (1.1), a base support element supporting the seat support structure , and a seat adjustment arrangement , - which comprises at least one coupling unit movable relative to the base support element , the coupling unit being configured to connect the seat surface frame (1.1.1) and the backrest frame (1.2.1) to one another and being provided with at least one bearing element , and - which comprises at least one guide element in which the bearing element is movably guided, wherein the seat adjustment arrangement is adapted to transfer the seat support structure into a sitting position (P1), a comfort and/or lying position (P2) by displacing the bearing element along the guide element and wherein the seat surface frame (1.1.1) and the backrest frame (1.2.1) are pivoted at a same attachment area (B1) relative to each other, wherein the coupling unit comprises a first coupling element (4.1) connecting the seat surface frame (1.1.1) to the guide element and a second coupling element (4.2) connecting the backrest frame (1.2.1) to the guide element , and wherein the base support element comprises the attachment area (B1) in which a rear region of the seat surface frame (1.1.1) is pivotably fixed and in which the backrest frame (1.2.1) is pivotably fixed relative to the seat surface frame (1.1.1). a seat support structure comprising at least one seat surface (1.1) with a seat surface frame (1.1.1) and a backrest (1.2) with a backrest frame (1.2.1) being pivotable relative to the seat surface (1.1), a base support element supporting the seat support structure , and a seat adjustment arrangement , - which comprises at least one coupling unit movable relative to the base support element , the coupling unit being configured to connect the seat surface frame (1.1.1) and the backrest frame (1.2.1) to one another and being provided with at least one bearing element , and - which comprises at least one guide element in which the bearing element is movably guided, - which comprises at least one coupling unit movable relative to the base support element , the coupling unit being configured to connect the seat surface frame (1.1.1) and the backrest frame (1.2.1) to one another and being provided with at least one bearing element , and - which comprises at least one guide element in which the bearing element is movably guided, wherein the seat adjustment arrangement is adapted to transfer the seat support structure into a sitting position (P1), a comfort and/or lying position (P2) by displacing the bearing element along the guide element and wherein the seat surface frame (1.1.1) and the backrest frame (1.2.1) are pivoted at a same attachment area (B1) relative to each other, wherein the coupling unit comprises a first coupling element (4.1) connecting the seat surface frame (1.1.1) to the guide element and a second coupling element (4.2) connecting the backrest frame (1.2.1) to the guide element , and wherein the base support element comprises the attachment area (B1) in which a rear region of the seat surface frame (1.1.1) is pivotably fixed and in which the backrest frame (1.2.1) is pivotably fixed relative to the seat surface frame (1.1.1). <EOS>