Sleep Disorder

After a battery of tests, the doctor gives Jose the results: he suffers from somnambulism, walking around in his sleep.
Jose scratches his head. “How?”
And he pats the handles of his wheelchair. “I can’t walk.”
“Only when you’re awake,” says the doctor. “But when you’re asleep, you walk around.”
Jose remembered the car crash, the surgeries, and getting the bad news: “You’ll never walk again.”
He told them then that he’d prove them all wrong.
“I guess I have,” he mumbled.
“I’ve got good news,” said the doctor.
“What?”
“You’re also a narcoleptic, Jose. More time for walking, right.”