The adjustable backrest offers a range of angles and features detachable armrests, providing versatility as both a bed and a seat. Crafted with exquisite materials and fine workmanship, the overall appearance is grand, comfortable, and functional.Constructed with a high-density, environmentally friendly sponge, it ensures a comfortable and soft seating experience. The backrest can be fully opened to 180°, transforming it into a sofa bed. When used as a sofa, the backrest can be adjusted to 110° or 145°, aligning with ergonomic aesthetics and enhancing the overall sitting or lying comfort.