Somniloquy is speaking in his sleep, making comments or sounds unconsciously during sleep. The person has no memory of having spoken. (not to be confused with catathrenia).
It is a sleep disorder greatly deteriorating the quality of sleep.
Polysomnography shows that episodes of sleep talking can occur in any of the stages of sleep (therefore confirming the existence of dreams in NREM sleep).
As with all parasomnias, there are predisposing factors in possible association with: