Yossarian had everything he wanted in the hospital. The food wasn’t too bad, and his meals were brought to him in bed. There were extra rations of fresh meat, and during the hot part of the afternoon he and the others were served chilled fruit juice or chilled chocolate milk. Apart from the doctors and the nurses, no one ever disturbed him. For a little while in the morning he had to censor letters, but he was free after that to spend the rest of each day lying around idly with a clear conscience. He was comfortable in the hospital, and it was easy to stay on because he always ran a temperature of 101. He was even more comfortable than Dunbar, who had to keep falling down on his face in order to get his meals brought to him in bed.

https://en.wikipedia.org/wiki/Catch-22