Why doesn't the Simmons bed of four or five thousand ring?

Those mattresses that used to ring often should be the cause of poor quality, or they have been used for too long, so the springs inside will ring when they are loose.

Simmons is widely concerned in Asia as a supplier of five-star hotels such as Shangri-La, Peninsula and Mandarin Oriental. The mattress has the characteristics of classic design, noble and gorgeous appearance, fine manufacturing technology, health and environmental protection, and it leads the development trend of mattresses in the world both in design and function.