Article continues below advertisementWhite House Chief of Staff Susie Wiles weighed in on President Donald Trump's sleep habits, describing him as someone who works "24/7" and "never sleeps."The steely Wiles remarked Thursday, May 7, at the Independent Women's Gala, where she received the Barbara K. Olson Woman of Valor Award, that "none of us know when he sleeps" because he is working constantly.