The Scotsman celebrated his stunning five-set win over world number two Novak Djokovic in the U.S. Open final at a Manhattan restaurant late on Monday with family and friends but there were no wild celebrations.
Although Murray struggled to get a wink of sleep while he contemplated his achievement, the 25-year-old was tucked up in bed before 3 a.m. (0700 GMT) in preparation for his first day as a member of the grand slam winner's club.
"We had a nice dinner," he told NBC's "Today" show. "A few of them went out to a club afterward, but I was back in my hotel room by 2:45 and couldn't get myself to sleep."
Image: 2012 U.S. Open tennis men's singles champion Andy Murray, of Britain, poses in Central Park on Tuesday, Sept. 11, 2012, in New York.
US Open 2012