I bite my tongue in my sleep. I've tried a mouth guard, but I spit it out during sleep. Any suggestions on prevention?

Mouth guard? Do you mean a custom made occlusal orthotic, commonly called a night guard, or an over-the-counter drug store item, or a sports mouth guard. Your grinding, clenching, tongue biting may be due to an airway problem or a malocclusion. Please see an Orthodontist to evaluate your occlusion AND your general dentist who may refer you onward. This isn't a DIY project.
See OFP expert. Orofacial Pain provides diagnosis and management of chronic pain and dental sleep disorders. Nocturnal tongue biting is one of the problems they treat. They are the experts in this field. Good luck.
Sleep. You are grinding your teeth during sleep. Perhaps your night guard does not fit well. Do you also snore? Are you tired during the daytime? Are you overweight? You may have sleep apnea. Get evaluated for this. Treatment may be an oral appliance or CPAP.

Related Questions

My teeth on the left side of my mouth are hurting. I noticed lately that I am grinding and clenching my teeth during sleep. Mouth guard not helping?

Tooth pain. It is time to see your dentist. Is your mouth guard custom made for you or just off the shelf? Your dentist can assess and get a better idea of what is going on and how to address it. Take care. Read more...
Return. Return to the Dentist who made your mouthguard. You may need adjustment or replacement. There are other causes for soreness besides parafunctional habits. Let your Dentist check you out. Read more...
Tooth Pain. Have your dentist determine if the night guard is properly balanced and that any pain is not related to a specific tooth issue. Read more...
Bruxism. Bruxism has several causes, stress being an important component. There is a wide range of training and experience among dentists as well as a wide range of individualization of mouth guards. Big difference with a generic OTC vs a specialized carefully fabricated and adjusted mouth guard by a dentist who is highly trained in this area. Try to reduce your causes of stress and choose DDS wisely.. Read more...

Is it possible to wear a mouth guard when your teeth are clenched during sleep?

The best time to.... If you are referring to a mouth guard used for protection when playing sports, it is possible. Your best option is to wear a night guard made to fit your mouth. It would protect your teeth from the forces exerted on your teeth during grinding. One can do extensive damage to the teeth from the pressure placed on them by grinding. Read more...
Night guard . Absolutely. A night guard (ng) protects and prevents damage to your teeth such as cracks, chipping, and wearing down of your teeth from clenching/grinding. Be patient because sometimes it takes a while to get used to having a ng in your mouth while sleeping. A custom made ng made by your dentist will fit much better than an otc ng. The better the ng fits, the easier to keep it in while sleeping. Read more...
Night guard. A mouth guard protects teeth and reduces concussion risk when playing contact sports. A night guard reduces symptoms and wear caused by clenching or grinding, but does not eliminate the cause. They are designed differently and are not interchangeable. Custom made are far superior to OTC, which can actually cause problems. See your Dentist. Read more...
Yes. Yes, they are very helpful for clenchers & grinders at night. There are over the counter types but if you want a better investment, a better fit & increased durability then have a professional one made. Read more...
Recommended. Night-guards are an easy way to prevent the wear and damage that teeth-grinding causes over time. Custom-made mouth-guard by your dentist is recommended. Read more...