What grade does Silian mattress belong to?

High-end 1. Silian mattress is a high-end brand mattress and a first-line brand. Founded in 188 1, it was born in xilian town, a suburb of Houston, Texas, USA. In 2008, it entered China and was unanimously recognized by consumers. 2. Stupid mattresses have a good reputation, mainly in terms of functionality. "Sillian" began to cooperate with the top orthopedic experts at that time to carry out product research and development, and successfully introduced the concept of "spine protection" into the manufacture of mattresses. Therefore, the use of this brand mattress is very effective for the maintenance of the spine, and it was also the only brand in the industry that focused on the correct support of the back at that time. 3. The silly mattress is fine in workmanship. If you look closely, you won't find the thread is rough, which also protects its service life. As an imported brand, quadruple mattress is one of the most famous mattresses in the world. Therefore, the overall grade is very high and the price is relatively expensive.