To make sofa-transformers https://brionexi.ua/ru/myagkaya-mebel/divany-transformery/ for long-term use, reliable wear-resistant materials are used. The body is finished with jacquard fabric, which withstands mechanical loads and is resistant to stains. The metal frame is covered with plywood, which helps to withstand high loads, placing even two people on the upper berth. Foam rubber and synthetic padding are used for filling - they do not cause allergic reactions and support the natural position of the spine.