DD is 3.5 and has been potty trained for about a year, sleeping in underwear at night for over six months. She occasionally wets the bed.

Then the night before last she wet the bed twice. Yesterday she had her first nap time accident at school. Last night she wet the bed again. So a total of 4 incidents in just about 24 hours.

Any idea what might be going on? We suspected too much water the first night and cut back yesterday. No major life changes and she doesn't seem particularly anxious about it.