Common listings separate three material categories: frame materials (e.g., metal, rubberwood), upholstery fabrics (polyester, cotton, corduroy, and breathable 3D/knitted mesh), and fill/padding (100% foam or high-density sponge).
Listings commonly offer single-seat, two-seat, and three-seat recessed-arm sofas. Overall widths typically range from about 48.4 inches up to 87.0 inches, covering compact to extra-long seating spans.
It varies by listing: some recessed-arm sofas arrive as one-piece, no-assembly items, while others require adult assembly. Many listings note that tools are provided or included with the product.
Common upholstery options include breathable 3D knitted or mesh fabrics, corduroy, and woven textiles such as polyester or cotton.
Care instructions in listings typically recommend air drying, professional dry cleaning, or spot/wipe cleaning depending on the fabric and manufacturer guidance.
Both pillow-style (loose) cushions and tight (fixed) cushions appear in recessed-arm sofa listings—some models use pillow back and seat cushions, others use fixed back and seat constructions.
Common comfort features include high-density or high-resilience foam, spring support such as sinuous springs, and combined spring-plus-foam constructions designed to maintain shape and provide sustained support.