Double happiness. Guangdong Shuangxi mattress is an earlier mattress brand in China. We have been committed to connecting with the international sleep industry, focusing on the international market and serving national brands globally. 20 18 was rated as one of the top ten brands in China in August, ranking seventh. Mattress is an article between human body and bed, which ensures consumers to get healthy and comfortable sleep. Mattresses are made of various materials, and different materials can bring different sleep effects.