Not really. You dream, even if you don’t remember it. So there’s some continuity there. It’s not the same thing as turning it off and on again. Like there will be a consciousness in your body, and it will be identical (at least for up to a second or two) to the consciousness you are now. But it won’t be the same consciousness. Or at least it’s not clear to me that it is.

No it doesn't. What we call "unconsciousness" is really just reduced consciousness. Your mind is maintained and you remain aware of external stimuli, just to a much weaker degree.