Is there person without consciousness?

If we consider person(Arthma) as a consciousness. When undergoing an operation, we are temporarily unconscious. Then what happens to that person while unconscious? Some related discussion are here: I want to understand the technicality of rebirth and what happens to conditioned self . If there is no soul, how can there be rebirth? . Is rebirth a delusional belief? . What are examples of identity-view? 1. If we say these things are temporary illusions then how it is continued? 2. What are the similes use to explain this phenomena in any tradition?