I am unsure as to what precaution to take. My boyfriend used to sleepwalk but hasn't done so in at least two years. Last night during his sleep he sat up in bed turned to face me and screamed then he tried to choke me, he was very upset when I told him what he had done, as he remembered sitting up and screaming but nothing else. He can't see a doctor about it for a few weeks, as the soonest he could get an appointment was in two weeks, I don't know what we can do until then.