How to Stop Grinding Teeth at Night: 7 Things That Actually Help

Here's the frustrating thing about teeth grinding: most people have no idea they're doing it. You fall asleep, grind your teeth for hours, and wake up with a dull headache and a jaw that aches, with no memory of any of it. Your partner, though, has a very vivid memory.

Bruxism, the clinical term for teeth grinding and jaw clenching, affects around 10% of adults and up to 15% of children. It's classified as a sleep-related movement disorder, which is a fancy way of saying your muscles keep working when your brain is supposed to be resting.

The good news is that there are real, evidence-backed things you can do about it. The honest news is that some of the things people try don't work particularly well, and there's no single fix that makes bruxism disappear overnight. But you can significantly reduce the damage and the pain, and for many people that's a complete game changer.

Why Do People Grind Their Teeth at Night?

Nobody fully knows, and it's probably different for different people. The most commonly cited factors include:

• Stress and anxiety, by far the most common trigger. Your jaw is one of the places your body holds tension, and when that tension doesn't get released during the day, it often comes out at night.

• Sleep disorders. Bruxism is significantly more common in people with sleep apnea. If you're also a loud snorer or you wake up exhausted despite a full night's sleep, it's worth mentioning both symptoms to your doctor.

• Certain medications. SSRIs and other antidepressants are linked to bruxism as a side effect in some people. If your grinding started around the time you began a new medication, that connection is worth discussing with your doctor.

• Caffeine and alcohol. Both affect sleep quality in ways that can worsen grinding. Alcohol in particular disrupts the later stages of sleep when bruxism tends to occur.

• Genetics. If your parents ground their teeth, you're more likely to as well.

1. Figure Out If Stress Is the Culprit

This sounds obvious, but it's worth actually sitting with. Think about when your grinding started, or when it got worse. Was there a specific period of elevated stress? A job change, a difficult relationship, a health scare? For a lot of bruxism sufferers, the connection is surprisingly clear once they look for it.

Managing stress won't eliminate bruxism for everyone, but it often reduces its severity. Regular exercise, better sleep habits, and cutting back on alcohol before bed are all proven to help. Jaw-specific relaxation exercises, consciously releasing the jaw and letting your teeth part slightly before sleep, can also reduce tension overnight.

2. Change What You Do in the Two Hours Before Bed

The pre-sleep window matters more than people realize for bruxism. Alcohol amplifies grinding. Even if it makes you feel like you fall asleep faster, it disrupts the sleep architecture that allows your muscles to properly rest. Same goes for caffeine after midday for anyone sensitive to it.

A warm shower, some light stretching focused on the jaw and neck, and avoiding screens that keep your nervous system activated can all meaningfully reduce nighttime grinding. Small changes, compounded over weeks, add up.

3. Wear a Custom Night Guard Every Night

This is the most important item on this list and the only one that directly protects your teeth while you work on everything else.

A night guard doesn't stop you from grinding. What it does is create a protective barrier between your upper and lower teeth so that instead of grinding enamel against enamel, you're grinding against a dental-grade material designed to absorb that pressure. Your muscles still work. Your teeth don't pay the price.

The word custom matters. Over-the-counter boil-and-bite guards are bulky, don't fit precisely, and often shift around during sleep, meaning you wake up with the guard across the pillow and your teeth still taking the punishment. A guard made from your actual dental impressions stays where it belongs and does its job all night.

This is especially important for heavy grinders, whose enamel loss over years can be severe enough to require crowns, veneers, or more extensive dental work. Enamel doesn't grow back. A $95 guard now is an investment against thousands in dental bills later.

4. Try Jaw Stretching and Massage

The muscles that control jaw movement, primarily the masseter and temporalis, can become significantly overdeveloped and tight in people who grind regularly. Gentle jaw stretching, opening your mouth slowly as wide as comfortable, holding for ten seconds, and repeating, can reduce tension and soreness. Self-massage of the masseter (the muscle you can feel when you clench your jaw) and a warm compress applied before bed both help too. It takes five minutes and makes a real difference for a lot of people.

5. Consider Magnesium

There's emerging but not yet definitive research suggesting magnesium deficiency may be linked to bruxism. Magnesium plays a role in muscle relaxation, and a deficiency can leave muscles in a more contracted resting state. Magnesium glycinate taken before bed is a low-risk supplement worth trying. Talk to your doctor first, especially if you take other medications.

6. Ask Your Doctor About Botox for Severe Cases

For bruxism that doesn't respond to other approaches, Botox injections into the masseter muscle can significantly reduce grinding intensity. By partially weakening the jaw muscle, the force your teeth exert during grinding drops substantially. This requires a healthcare provider and needs repeating every few months, but for some people, particularly those dealing with chronic headaches and serious jaw pain, it's genuinely life-changing.

7. Get Evaluated for Sleep Apnea

If you grind your teeth and you also snore, feel unrested after a full night's sleep, or wake up with headaches regularly, a sleep apnea evaluation is worth having. Bruxism and sleep apnea are connected, and treating the apnea often significantly reduces grinding. A sleep study is now often doable at home with a device your doctor can prescribe.

The Bottom Line

There's no single thing that eliminates bruxism for everyone. What works is usually a combination: managing stress, improving sleep habits, and protecting your teeth while you work on the rest.

The night guard is the piece you can act on immediately. Everything else takes time. But if you're grinding your teeth right now without protection in place, every night is doing cumulative damage that's permanent. That's the part worth taking seriously.

Protect your teeth while you work on the rest. Custom night guards from $95 at getcheeky.com