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

Context: I am overwhelmed . Time to rest . Last night the boys and I went to another baseball game . It poured right before the start of the game and then cleared up . The game went on ... unfortunately because it was a very boring game and the stadium was only filled about a tenth of the way .

Answer:

I stayed out late last night with the kids .



What may be the reason I was si tired ?