How do I clean a Zinus sofa? Zinus Support June 12, 2019 16:44 Updated Our sofas are made of polyester-linen fabric. The best option for cleaning is to use a mild detergent and damp cloth. Related articles How do you deliver a sofa in one box? Do I need any tools to set up my Zinus sofa? Are the seat cushions for the Zinus sofas and loveseats removable? Can I wash my Zinus mattress cover? How do I clean a mattress topper/pad?