Totally Random - The Sneeze

Do you have to be awake to sneeze? I can't remember ever sneezing in my sleep for surely it would have awakened me. I have noticed that I can sometimes stop a sneeze if I feel it coming on soon enough. Maybe like mind over matter? However, some sneezes can't be stopped and some come upon me so quickly that they happen before I even realize it. I wonder. Back to my original query here. Do you have to be awake to sneeze? Just wondering.