Is it possible to swallow a grind guard while sleeping?

Yes, it is possible to swallow a grind guard while sleeping, although it is rare. Most grind guards, or night guards, are designed to fit securely over the teeth and are typically made from materials that are not easily swallowed. However, if the guard becomes dislodged during the night, there is a small chance it could be swallowed. If this happens, it's important to seek medical attention to ensure that it does not cause any harm.