that it is possible to hiccup while you sleep?
Sam was sleepy. Very sleepy.
Sam had hiccups. The mean, painful sort.
I gave him water. Salty crackers.
Sam fell asleep.
Sam snored, then hiccuped loud like a seal, then snored some more. Repeat.
Ultimately, the man slept, snored, and hiccuped on the couch.