I wet the bed as a child. At about 4 years old, I had my tonsils and adenoids removed and I quit wetting. My daughter started wetting the bed at 4 years of age. She had her tonsils and adenoids removed and quit wetting the bed immediately. My son started wetting the bed at 4 years of age and he also has an appointment to go see and ear, nose and throat specialist and chances are that will make him quit wetting the bed also. When the child first goes to sleep their snoring gives them a restless sleep and when they finally get into a deep sleep, they can't wake themselves up to go to the bathroom.
So any parents out there who have children that wet the bed, please take them to their doctor or pediatrician and have them referred to an ear, nose and throat specialist. It may cure their bedwetting.