Why cant Danny sleep in pages 132€“136 of Mexican WhiteBoy?

Those
pages coincide with the chapter that is titled "Don't Worry, They're Asleep." It is
definitely an awkward chapter for Danny and the reader. It begins with Danny struggling to fall
asleep on the couch when Uncle Tommy and Cecilia enter the apartment, and Uncle Tommy is making
repeated sexual advances toward Cecilia. This is definitely one reason why Danny can't fall
asleep, but it is not the main reason why he wasn't already asleep. Danny
didn't fall asleep earlier because he kept turning over in his mind his pitching disaster
against Carmelo. Danny can't figure out why when the pressure is on, his control completely
falls apart. Danny is especially bothered this time because he not only let himself down, but he
also let Uno down. Readers are told that Danny is "overwhelmed with guilt and sick to his
stomach."