I used to sleep talk too, and laugh in my sleep. I don't know if I still do that. I only knew when I would sleep in my sister's room, or my cousins' room.
Sometimes, I make strange noises while I sleep, because I forget to exhale and so I inhale and eventually in makes a super loud and embarrassing noise. I usually wake up from it if I'm in a light sleep, and if I'm sick with my nose congested I do it multiple
times. and I've been told I do that. It's so embarrassing if I ever sleep around others, and so I am always scared of falling asleep in public. :(