“Many people thought the loss of memory [associated with anaesthesia] was due to the fact that you were asleep, or de-aroused,” Dr Fettiplace, lead author on the study, told the university. “But this is not the case.”
Article source: https://www.huffingtonpost.co.uk/entry/anaesthesia-explained-sleep-youtube-anthony-kaveh_uk_6a563082e4b009ba3bd48604