1. Raw material price: there is a difference between Nantong and Beijing. Due to the large scale of industrial clusters engaged in textile industry in Nantong, the corresponding raw materials such as sponge products and first-class medical devices are in sufficient supply, so the price is relatively cheap. In contrast, the price level in Beijing is relatively high, and the cost of purchasing raw materials is relatively high.

2. Production environment: Nantong has relatively perfect production facilities and advanced production technology, as well as a large number of skilled workers, which makes Nantong's mattress production have high production efficiency and product quality. In Beijing, due to higher land and labor costs and stricter environmental protection requirements, mattress production costs are relatively high.