Muddled words

Sometimes I get my words muddled up. Today having a bit of a discussion with son 1 and son 2 about another child that our nanny occassionally looks after. He's been fainting, then staying passed out every day at school for the past few weeks. Our nanny had told me about it and explained it to my boys as they sometimes play together. Son 1 told me that he couldn't remember the word for the condition that it might be, I said "oh I'm sure its necrophilia, no that sounds wrong, I'm not sure the name of the condition". It's narcolepsy that he might have, the condition where someone suddenly falls into a deep sleep (River Phoenix played a character in the film My Own Private Idaho) not the condition where you have urges to get jiggy with a dead person. Whoops, need to get my words right before talking to 'the child who remembers everything'.