With a bed, it is usually easier than with a sofa in terms of disassembly: you need to disconnect the headboard, footboard, base, legs, roll up the mattress, pack everything in a film. With sofas it is more difficult – there are several types of them. First you need to determine what kind of sofa you have.

Corner sofa. Its peculiarity is that when assembled it takes up a lot of space, and when disassembled it turns into three small elements. The main thing is to carefully unscrew the bolts that connect these elements.
Sofa book. This is one of the most common types of sofas, it is quite easy to understand. First you need to unscrew the side panels and the seat, then disconnect the backrest. In order not to lose the nuts, after disassembly, you can screw them back onto the bolts on the dismantled elements. The peculiarity of the sofa-book is that it can be transported in assembled form, just in the unfolded state – so it takes up quite a bit of space due to its flat shape. The sofa just needs to be pulled off with a rope and packed in a film so that the mechanism does not work during loading and the sofa does not begin to fold.
Eurobook sofa. For such a sofa, the seat and back can be on the same frame – when disassembling, you will have to disconnect them together.
Sofa accordion. This sofa consists of a metal frame and three movable elements. The mechanism is fixed on wooden planks. To disassemble this sofa, place it in the center of the room, remove the screws from the back panel and detach the sides, then remove the headboard and remove the triple section. Loosen the fasteners or unbend the clips, then remove the bedding box. The mattress and legs are also detachable.
Pull-out sofa. Such a sofa is easy to disassemble without skills: you need to remove the pillows and covers, unfasten the side walls and armrests, remove the seat and back.