The undeniable advantage of a folding bed is the fastening of bed linen. It remains securely attached to the bed while it is being folded. You do not need another piece of furniture to store duvets. They also do not get in the way of the bed, which, whether you like it or not, takes up at least 4 m of usable space.
Note the practical detail. When the bed is folded out, a handy bedside table appears on the inside of the structure, where you can put a book or a glass of water. It does not take up a centimeter of space, and you do not have to dust it.
In combination with custom-made furniture in the form of narrow wardrobes with drawers, you have a dressing room and a bedroom in one, and during the day you can use the room for any other activity.