What does the verbal irony in this text suggest?
"Sleeping through the rooster's crowing was no problem," Raymond joked with a yawn.

 - Raymond slept poorly.
 - Raymond finds roosters amusing.
The text uses verbal irony, which involves saying one thing but implying something very different.
Sleeping through the rooster's crowing was no problem ironically suggests that Raymond slept poorly. Raymond was tired, so the rooster's crowing was clearly a problem.