The trick is not to make too much noise. You want to be stealthy, sure, but not completely so. The secret is to make the perfect blend of soft sounds so that when she wakes up and sees you, she'll smile, sleepily, thinking how lucky she is to be getting coff ee in bed.
There is, of course, a fine line between being appreciative of the gesture and being annoyed by the disturbance. I've tip-toed that line for