Use a bed-wetting alarm device. If your child reaches the age of 7 or 8 and is still not able to stay dry during the night, an alarm device might help. When the device senses urine, it sets off an alarm so that the child can wake up to use the toilet. Use this device exactly as directed so that it will detect the wetness right away and sound the alarm. Be sure your child resets the alarm before going back to sleep.
Alarms tend to be most helpful when children are starting to have some bladder control on their own.
Protect and change the bed. Until your child can stay dry during the night, put a rubber or plastic cover between the sheet and mattress. This protects the bed from getting wet and smelling like urine. Let your child help. Encourage your child to change the wet sheets and covers.