Bali 8-Inch Loft Inner Spring Futon Sofa Sleeper Bed, Full-size, Black Arm Finish, Microfiber Suede Khaki Upholstery With its low narrow arm, the Bali 10-inch Loft Inner Spring Futon Sofa Sleeper serves as a perfect sofa by day and perfect bed at night Medium to firm comfort level; 13" of materials including 350 coil count Bonnell spring, the best cotton & fiber foam batting compressed to loft to 8"