I want to try a WILD but I have some questions first.

My family says I sleep talk, but my words are to slurred to understand. Once, my uncle said he was trying to wake me up. Then, I put my hand on my head and elbow on the bed and started talking in a slur. Also one funny thing that my uncle saw once is when he was sleeping with family relatives, he saw his cousin suddenly sit up and started punching with the hu! hu! hu! for each punch. Then he went back to sleep. Why do I talk if I'm in sleep paralysis?