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 cm - density 30 Kg / MC with quilted upper lining Optional 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 H. 13 cm chrome feet