Why is Travis hard to wake up?

Travis was hard to wake up because he went to sleep late. Travis sleeps in the livingroom and Walter had friends over. He couldn't sleep because there were people socializing in his room.

It ain't his fault that he can't get to bed no earlier nights 'cause he got a bunch of crazy good-for-nothing clowns sitting up run- ning their mouths in what is supposed to be his bed- room after ten o'clock at night . .