Most modern sofas seat between 2 and 4 people—commonly sold as 2‑seat, 3‑seat, or 4‑seat models.
Common functional features include built‑in USB and Type‑C charging ports, hidden storage and side pockets, flip‑over cup holders, reversible chaises, pull‑out sleeper mechanisms, LED light strips, and modular/convertible configurations.
Assembly varies by model: some require adult assembly with tools (often provided), some assemble without tools, and others ship fully compressed with no assembly required—just allow time for expansion.
For compressed, no‑assembly sofas the listings advise allowing up to 72 hours for the sofa to fully expand after unboxing.