Zheng Qinwen could not sleep until morning

After defeating Donna Vekic, Zheng Qinwen was still in the mixed zone at 2:30 am. "I've gotten used to it. I now believe that I can compete at any time, as long as I can ensure a basic 8 hours of sleep. " Zheng Qinwen on the late night match leading her to adapt to a delayed body clock.