4D air fibers also play an important role in medical mattresses and bedding. The 4D air fiber mattress is made of safe and non-toxic materials such as polyolefin elastomers, which comply with the EU REACH standard and ensure the non-toxic and environmentally friendly characteristics of the product. At the same time, the mattress has a three-dimensional fiber network structure that allows air to circulate freely, creating a microclimate that is warm in winter and cool in summer, which helps improve sleep quality. In addition, the 4D air fiber mattress also has good antibacterial and anti mite properties, which can effectively reduce the breeding of mites and protect the skin health of patients. Its moderate soft and hard design also helps alleviate physical stress and improve sleep quality.