from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The act or habit of talking in one's sleep.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The act or habit of talking in one's sleep.
  • n. The words thus uttered.

from the GNU version of the Collaborative International Dictionary of English

  • n. A talking in sleep; the talking of one in a state of somnipathy.

from The Century Dictionary and Cyclopedia

  • n. The act of talking in sleep; specifically, talking in the somnambulistic sleep.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. uttering speech while asleep


somni- + Latin loquī, to speak; see soliloquy.
(American Heritage® Dictionary of the English Language, Fourth Edition)


  • She plots Six's graphs and statistics while playing Seven's sleep video in double time, watching the patterns and listening to him do his somniloquy in a high-pitched Chipmunk voice.


  • In any case, it turned out there was no room for sleepwalking in the book, because I got so interested in narcolepsy and insomnia and sleeptalking, or somniloquy.

    Fast Times at King William's High

  • "How long are we going to wait out here?" complained Nawin in his somniloquy.

    An Apostate: Nawin of Thais

  • Apparently, talking in one's sleep is a form of parasomnia termed somniloquy. stories: News

  • The study distinguished the dream-enacting behavior of speaking out loud some of the words of a dream about talking from somniloquy (sleep talking), which was defined as speaking or making sounds during sleep without clear recall of an accompanying dream. - latest science and technology news stories

  • Almost 61 percent of subjects in group three reported experiencing somniloquy at least "rarely" in the last year, and 40.9 percent reported somnambulism. - latest science and technology news stories


Log in or sign up to get involved in the conversation. It's quick and easy.

  • I agree, choice piece of text!

    November 5, 2007

  • I had to look this one up. At first blush, I thought it must be a very boring soliloquy. Good word. I think I will pilfer it.

    June 15, 2007