Franz Kafka, The Metamorphosis

Gregor then turned to look out the window at the dull weather.
Drops of rain could be heard hitting the pane, which made him feel
quite sad. "How about if I sleep a little bit longer and forget all
this nonsense", he thought, but that was something he was unable to
do because he was used to sleeping on his right, and in his present
state couldn't get into that position. However hard he threw
himself onto his right, he always rolled back to where he was. He
must have tried it a hundred times, shut his eyes so that he
wouldn't have to look at the floundering legs, and only stopped when
he began to feel a mild, dull pain there that he had never felt