U.S. mattress maker Sealy said that it was imperative for any company selling any kind of products and services in China to engage with their customers online as the country's e-commerce space continues to expand. 

Simon Dyer, managing director of Sealy Asia Pacific, said in an interview with CGTN's Zheng Junfeng that the global mattress company itself has performed better online in China than other parts of the world.  

"We've got a great online team, I mean to be honest, we're further ahead online in China than we are in other countries within our business," Dyer noted. 

He believes China is a very sophisticated online market. It is a "well-understood and well-developed" market in this part of this country.  

"So if you are selling anything in China, you need to engage in online," he said. 

Amid a slowing economy and uncertain trade environment, Sealy recently just opened its sixth factory and 700th shop in China. Dyer said China was a "big" consumer market, and Sealy needs to grow its retail footprint in order to meet that demand. 

"Right at this moment, a little slow. Still growing, still strong, but taking the perspective from the last three or four years, a little bit slower," the managing director commented on Sealy's China business.

But Dyer stressed that Sealy had "some gas left in the tank," adding that the largest mattress maker in the world still retains some aspirations and dreams "about what we can be in this market (China)."  

(CGTN's Zheng Junfeng also contributed to this story.)