sleepwriting

Verb

sleepwrite (third-person singular simple present sleepwrites, present participle sleepwriting, simple past sleepwrote, past participle sleepwritten)

1. (rare) To write in one's sleep.
   • At first it seemed like a very painless way to get my work done and I told Milly to let me sleepwrite as much as I liked. We discovered, however, that although my subconscious might lead me to the typewriter, it couldn't make me think.1952, Morris McNeil Musselman, Second Honeymoon, page 5