When the problem appeared again, the government was 'caught napping'. [=the government was not prepared to deal with it]
The goalie had to be 'napping' when that ball got by him.
She awoke from her 'nap' rested and refreshed.
(..) For you. I think I might take some girls for ice cream later on. What do you say about that? - Yeah! - Honey, you wanna come? I'm exhausted. I'm just gonna take a nap. The late nights are getting to me. That's probably a good idea. Why don't you get some rest. - Really? (..)2013 The Conjuring