Have you ever sneezed so loudly in the middle of the night that you’ve woken yourself up? Think about it. The answer is likely no. In fact, many sleep researchers and neuroscientists think it’s essentially impossible to sneeze while you sleep.
First, a caveat. To date, there doesn’t seem to be any published studies that questioned whether we sneeze during our sleep. Instead, physiologists and sleep researchers have attempted to answer this question based on our current understanding of how our brains and bodies work while we sleep.