Alarms to Treat Bedwetting

Q. My granddaughter is 10 years old and she still wears diapers to bed every night. Can you give me some advice on how we can get her up to go to the bathroom? I remember years ago discussion of an electrical device that sounded an alarm to wake the child. Do they still exist? Is this a good idea?

A. If there is no underlying medical problem, a bedwetting alarm is a good treatment. At first the alarm may wake everyone in the house except the sleeping bed-wetter. Waking the child and getting her to the bathroom to finish urinating should address the problem within a month or two. Devices such as SleepDry or Wet-Stop2 cost $50 to $75.