Full Idea
It is an empirical fact that people often sincerely report having had dreams which involve category mistakes.
Gist of Idea
People have dreams which involve category mistakes
Source
Ofra Magidor (Category Mistakes [2013], 3.4)
Book Reference
Magidor,Ofra: 'Category Mistakes' [OUP 2013], p.62
A Reaction
She doesn't give any examples, but I was thinking that this might be the case before I read this idea. Dreams seem to allow you to live with gaps in reality that we don't tolerate when awake.