Sofa bed with thin armrest. Semi-automatic easy opening using a retractable band, without the need to move the cushions. D25 Polyurethane foam mattress, with a 100% CO cover. Seat cushions upholstered with polyurethane foam 30kg/m³ supported by elastic belts. Backrests divided into three separate areas filled with feather mixed with polyester flakes. Fire retardant version.