This 78.8" sofa features soft cotton fabric, high-density sponge (600 lb capacity), and ergonomic backrest pillow. 10.2" wide armrests. No assembly required. Perfect for living rooms, bedrooms, or home theaters. Smooth & Skin-Friendly Fabric： Soft cotton feels light as clouds with unique striped pattern and gentle sheen. Durable & Stable： High-density sponge supports up to 600 lbs; strong resilience restores shape after compression. Multiple Spaces Available： Ideal for chatting, reading, or intimate moments in living rooms, bedrooms, or home theaters. Ergonomic Design： Backrest pillow supports back and waist; wide armrests offer relaxed arm support. No Assembly Required： Simply unwrap and relax; reaches full luxury within 72 hours with no tools needed.