When I was at the Sheraton Hong Kong last month, the desk clerk told me when I checked in that they had 24-hour room service. But the breakfast menu to put on the door knob said it started at 6 a.m. I called room service that night to find out if I could get my order earlier. The person I talked to took my breakfast order and reassured me it would be delivered at 4:45; said she'd be sure I got it. And I did.