Sofa bed/Sofa with completely removable covers Frame construction with hardwood, plywood and high-density particleboard Electro-welded bedspring with elastic belts on the seats Mattress in Polyurethane foam h. 13/17 cm - density 30 Kg / MC with quilted upper lining Optional h. 13 cm or h. 17 cm Memory Foam 40 Kg/MC or Biogreen 36 Kg/MC mattresses available Back padding in down 67% and silicone fiber 33% Seat padding in Polyurethane foam density 30 Kg / MC and down lining Standard wood feet, optional chrome feet without extra charge