This sofa bed uses chenille fabric on the contact surface. This fabric is renowned for its rich texture and soft feel on the surface. It is not only skin-friendly and comfortable but also has good wear resistance and anti-tear properties, making it suitable for frequent use. The seats and backrests are made of high-density foam, providing uniform and long-lasting support, effectively preventing deformation and collapse after prolonged sitting or lying. Beneath the seats is a Full Size mattress that can be pulled out for use without the need for additional padding, offering a sleep experience close to that of a standard bed. The support for this mattress is provided by a heavy-duty foldable metal frame, which has stronger load-bearing capacity and structural stability, capable of withstanding frequent opening and closing operations and the weight of adults, without generating abnormal sounds or vibrations, ensuring a safe and stable sleep environment. The armrests on both sides of the sofa bed have an openable design at the top, and the interior integrates storage compartments. This design ingeniously utilizes the armrest space, allowing for the storage of items such as pillows, blankets, books, or remote controls, helping to maintain the tidiness of the living room. Additionally, the armrests are equipped with cup holders, facilitating the convenient placement of beverages for rest or watching movies, enhancing the convenience and humanized experience of daily use. This sofa bed demonstrates strong scene adaptability. During the day, it serves as a comfortable sofa in the living room, providing relaxation, reading, or hosting guests; when guests stay overnight or need a nap, simply operate it to convert it into a stable full-size bed. Whether it's a small apartment living room, a study that combines office and rest, or a spare furniture for temporary use as a guest room, it can perfectly fulfill the task, achieving efficient conversion and utilization of space functions.