Based on the context and the answer, generate a question. 

Context: A. went upstairs to close the windows so Grey would n't be disturbed . He came back , laughing . Apparently my son , who does n't usually object to goofing off after bedtime , put his hands on his hips and firmly told his father , " Stop laughing . It not funny . I trying to go to sleep !

Answer:

He was sleepy and irritated .



Why did my son react the way that he did ?