We don't know what to do since he used to get up on his on and use the toilet. He was in preschool and getting up early didn't seem to phase him too much, but the week of spring break he started wetting and hasn't stopped. Not sure if he's over tired or what...??
It is not unusual for children to waiver between periods of being dry then returning to wetting again as they move toward achieving permanent nighttime continence. This can occur even when there seems to be no obvious explanation for the change in behaviour – occasionally the return to wetting may be due to overtiredness or as a result of illness. Common physical or medical causes include such things as chronic constipation, urinary tract infections or tapeworms. Worms are very common among young children, particularly those attending preschool, with bedwetting being a symptom along with poor appetite, grinding of the teeth, stomachaches, difficulty sleeping and irritability. My recommendation would be to make an appointment with your GP to rule this out first. Also it would be worthwhile checking if anything is scaring him. It is not unusual for children between the ages of 4 and 6 years to experience an increase in nightmares or night tremors. If you think he may not be getting up to use the toilet because he is scared, you could try leaving a small night light on for him, talk to him during the day to see if anything is bothering him and shift his bedtime earlier so that he avoids becoming overtired (as this can contribute to both nightmares and bedwetting). Good luck!