Say what? Find out why some people talk in their sleep. Are you quite the gabber during the night, or is your sleeping partner? Learn more, below, about why people chatter during slumber. Sleep talking is a sleep disorder defined as talking during sleep without being aware of it. Technically called “somniloquy,” talking while you get your zzz’s can occur during any stage of sleep, but it is most likely to be comprehensible to a bed partner during REM sleep. Talking during deeper sleep (NREM sleep, stages three and four) just sounds like gibberish. Talking during any sleep stage can involve mumbles, moans, calling out, or whispering, but it is not considered a product of consciousness….