Sure, maybe your partner finds sleep talking annoying and disruptive to his or her slumber, but from a scientific perspective, the activity is usually considered to be normal.
Sleep talking can come in a variety of forms that range from mumbling or gibberish to full and coherent sentences. Any person can experience sleep talking during the night. It tends to occur more often in men and especially in children. If you don’t know what has led you to start talking in your sleep, one of these reasons could be behind it: genetics, sleep deprivation, consuming alcohol or drugs, fever, stress, depression, etc. Some of these factors can also lead to sleepwalking.