Well? Is there some kind of huge butterfly convention, or something? Where do they go at night? - Jinx
I don’t know, but that sounds like a good title for a really sad song.
Where do butteflies go at night?
… they hang out with Evel Knievel …
Actually, as I suspected:
Not sure of the reliability of this site but it seems like a pretty good answer.
And according to this site butterflies to not really sleep.