Xiliang Market in B7 District 10. According to Baidu map query, the place where Wuwei sells straw mats is B7 District 10, Xinxiliang Market, Liangzhou District, Wuwei City, Gansu Province. Straw mattress is thinner than ordinary mattress because of its good bulkiness, which is suitable for people who like to sleep on hard mattress. Straw mattress is cheaper, which is moisture-proof and warm, warm in winter and cool in summer.