Vilasund 3 seater sofa bed cover

Our IKEA Vilasund 3 seater sofa bed cover includes 5 pieces: 1 seat cover, 1 backrest cover including the armrests, 2 back cushion cover2, 1 panel cover and 1 handle. Fitting instructions: Remove the original IKEA slipcover before fitting the Bemz cover. Assembly not required but to fit the cover you need to pull out the bed first.