Is this a "sleep disorder ?"?

Grandma has a quirk of chewing in her sleep,...She chews on Grandpa's whiskers,and think it's shredded wheat .
Is she gonna be okay ? Will Grandpa be okay?Is this a "sleep disorder ?"?
Are you serious?
I'm no expert but I wouldn't call it a sleep disorder. Yes, it sounds similar to they will both be O.k. perhaps up to that time you saw them sleeping this was a raw habit of your grandmother. Grandpa will be O.k. If you are curious you may want to go and get a geriatric specialists opinion conceivably its the start of cognitive problems.