More than four million children over the age of five wet the bed. For most, time will solve the problem - eventually. But how long will "eventually" be, and at what cost to parents' frayed nerves or to the child's self-esteem? Parents can speed up the clock and children can wake up dry. The experts at the country's leading center for treating childhood enuresis - the Try for Dry program at Children's Memorial Hospital, Chicago - offer proven techniques...