This backrest is a special backrest for sauna rooms but also can be placed on the sofa to form a whole set of users. The backrest can better allow the body to maintain a more correct sitting posture. The human body needs to sit with a natural bend or straight back in normal life, both of which can strain the muscles and ligaments around the lumbar spine and cause tension in the soft tissues around the back easily after sitting for a long time. The subtle S-shaped design conveniently rests on the heating plate at a slight angle to provide additional back support. It can be easily repositioned within your sauna as needed to create a perfect relaxation station.