Silent seizures

I can't remember if i posted bout this before but i'll just ask anyway.

Did u ever have a seizure in ur sleep that no1 heard a noise but you just woke up the next morning with your face soaked in spit? it happened to me a few times my mom and aunts said i was just in a really deep sleep and It's nothing serious. Should I been concerned? I never spoke to my doctor about it because idk I guess i kinda believe them *shrugs* so is it?