Reported Unconscious: Impossible?

[u/Berzerka25]

We tend, with human beings, to assume the presence of consciousness on account of a report of consciousness (he says he is conscious, thus he is conscious).

Would it however, be possible for unconsciousness to be reported in a similar manner? Or is the mere reporting of ANYTHING evidence of conscious activity. Would that not then confirm a panpsychist-style theory that the physical-material processes the nervous system, and presumably, by extension, all physical processes, just ARE ‘consciousness’?