I don't do Sleepwalking but I can Sleeptalk. It bothers me because if someone asks me something while I'm asleep - I'll answer with the truth

your brain must be running really hard in your sleep in order to do that

I only do it sometimes. I'm sleep lightly and I was told that because of that my hearing stayed in a "standby" mode. But it shouldn't be considered a problem since it doesn't happen to me regularly.