Yes! My son does in his sleep! It hurt like hell when I was breastfeeding because he would clench his jaw while he was asleep. 😫
@katlovesj, not really his dentist said some kids grind their teeth when their teething kind of like massaging them and then said it could also be from stress in some cases, but I doubt that’s the case with my kiddo he’s a very happy kid.
My daughter did when she was 3. But she’s now 6 and doesn’t anymore.