Bart has a C-Pap machine because he has sleep apnea.
During the flight today, Dominyk got very excited to see that his father would be able to rest well on the plane. Since he was seated kind of far away from his dad, he had to say loudly, "DAAAD! Look! If you want to sleep on the plane all you have to do is push this button and one of those machines like yours will pop out of the ceiling so you can breathe!"