Out of nightmares

Greg, a nearly 10 years old boy, have some troubles with bedwettiong. Not every night but often enough to make his alcoholic mother really mad. His older Sister, Carola, 18 years old, helps him whenever he needs it and keeps household as good going as she can.
Some things seems to get worse as his sister plans to leave the house after her 18th birthday...

IM NOT VERY GOOD IN ENGLISH SO PLEAS BE PATIENT :) ;)