text: is it true that we swallow spiders in our sleep?   believe it or not, it is very true. on average, people ingest between 2-3 spiders per year while they are sleeping. spiders (and other insects) like dark, damp places to hide, and your mouth is sometimes seen as a 'perfect' place to hide. gross, isn't it?   don't stress to much about it though, chances are you have already eaten a couple of dozen spiders and you never even knew about it. just think of it as protein! sweet dreams...