The inability to control urination is termed enuresis. It can occur in day or night. In addition, unintentional release of urine can occur because of stress, urinary tract infections, and a small bladder.
Enuresis - Involuntary Urination While Asleep
Enuresis is nighttime, involuntary urination while a child is asleep. It indicates health complications if this issue continues after a certain age.