How do you stop biting your tongue at night?

What can be done to stop biting a tongue in a persons sleep will depend on the reason for biting the tongue. If it is because of seizures, medications will need to be taken. Bruxism is another causes and a dental plate can be made to stop the tongue biting. Other disorders may be the issue and might need addressed. Talk to a doctor to find the actual cause of the tongue biting.