Somniloquy or sleep-talking is a parasomnia that refers to talking aloud in one's sleep. It can be quite loud, ranging from simple sounds to long speeches, and can occur many times during sleep. Listeners may or may not be able to understand what the person is saying.[1]
Sleep-talking usually occurs during transitory arousals from NREM sleep, which is when the body does not move smoothly from one stage in NREM sleep to another, and they become partially aroused from sleep. Further it can also occur during REM sleep at which time it represents a motor breakthrough (see sleep paralysis) of dream speech, words spoken in a dream are spoken out loud.or sleep-talking is a parasomnia that refers to talking aloud in one's sleep. It can be quite loud, ranging from simple sounds to long speeches, and can occur many times during sleep. Listeners may or may not be able to understand what the person is saying.[1]
Sleep-talking usually occurs during transitory arousals from NREM sleep, which is when the body does not move smoothly from one stage in NREM sleep to another, and they become partially aroused from sleep. Further it can also occur during REM sleep at which time it represents a motor breakthrough (see sleep paralysis) of dream speech, words spoken in a dream are spoken out loud.