Teeth Grinding & Jaw Clenching · Quick answer
My partner grinds their teeth. What can I do?
The short answer
Tell them, kindly and once. The Sleep Foundation notes it's normal for people who grind their teeth at night to have no idea they're doing it unless a family member or bed partner tells them. Raising it isn't nagging, it's supplying the one piece of information they can't get for themselves. After that, the useful next step is a dentist rather than anything you can fix at home.
At a glance
Sleeping next to someone who grinds is a strange position to be in. You're holding information about their body that they don't have, and there's no obvious way to hand it over without it landing as criticism.
The good news is that your part is small and genuinely useful. Most of what follows is about how to raise it, and where to point them afterwards.
You're the detection system
The Sleep Foundation is direct about this. It notes that it's often much harder for people to be aware they're grinding their teeth while sleeping, which makes diagnosis challenging, and that it's normal for people who grind at night to not be cognizant of the behavior unless a family member or bed partner tells them about it.
Mayo Clinic makes the same point from the other side, noting some people may not know they have sleep bruxism until they have tooth or jaw problems because of it. Waiting for the damage to announce itself is the alternative to you saying something.
So the awkward conversation has real value. You're bringing forward a dental appointment that would otherwise happen after there's something to repair.
How to raise it without it becoming a thing
Describe what you notice rather than what they should do. What you heard, roughly when, how often. That's information, and it's hard to argue with. Advice about their stress levels tends to land very differently.
Say it once and let it sit. Grinding isn't a choice they're making, so repeating it doesn't hand them a new lever to pull. Mayo's symptom list includes teeth grinding loud enough to wake a sleep partner, which means the sound itself is a recognised clinical sign rather than a complaint you invented.
It also helps to separate the sound from the concern. Your disturbed sleep is real and worth naming, though the reason to see someone is their teeth and jaw.
Why a dentist is the right next step
A dentist can see evidence the person doing it can't feel. Mayo's symptom list runs from flattened or chipped teeth through worn enamel to jaw muscles larger than expected, and a dentist reads those together to judge how much grinding is happening.
Mayo's own guidance is to see a dentist or other healthcare professional for symptoms that could be caused by grinding or clenching, or for other concerns about teeth or jaws. That's the line to point at, and it takes the decision out of your hands.
It's worth knowing this can run in families. The Sleep Foundation notes that as many as half of people with sleep bruxism will have a close family member who also experiences it, which sometimes explains why a partner shrugs it off as normal.
Protecting your own sleep in the meantime
Your sleep matters too, and it's the part you can act on directly. Mayo notes the grinding sound can disrupt a bed partner's sleep, so treating that as a real problem rather than something to quietly absorb is reasonable.
Earplugs or white noise are the practical options while they work out what's happening. Neither treats the grinding, and neither is meant to. They buy you a functioning night while the actual route runs through a dental appointment.
Key takeaways
- The Sleep Foundation says people who grind at night usually don't know unless a family member or bed partner tells them.
- Describing what you notice works better than advice, and once is enough.
- Mayo lists grinding loud enough to wake a sleep partner as a recognised symptom.
- A dentist can read wear patterns and jaw signs the grinder can't feel.
- As many as half of people with sleep bruxism have a close family member who also grinds.
When to get help
Stress habits are common and usually manageable. Consider talking with a dentist, doctor, or mental-health professional if you notice any of the following:
- Pauses in their breathing or loud snoring alongside the grinding, which needs a doctor because it can point to sleep apnea.
- Morning headaches or facial pain, or a jaw that locks, which a dentist should assess promptly.
- Teeth that are visibly chipped or worn, which is damage already underway.
Frequently asked questions
Should I wake them up when they grind?
There's little to gain from it. They can't stop a behavior they're asleep for, and broken sleep tends to make things worse rather than better. Raising it in the morning is more useful.
How do I bring it up without sounding critical?
Stick to what you observed: the sound, roughly when it happens, how often. Grinding isn't a choice, so framing it as information rather than a request avoids putting them on the defensive.
Can I just buy them a night guard online?
That skips the step that matters. A dentist checks the wear pattern and the jaw first, and fits a guard to the actual bite. Shop-bought guards can fit poorly, and they do nothing about what's driving the grinding.
Is their grinding my fault if we've been arguing?
No. Mayo describes bruxism as a mix of physical, mental health and genetic factors, and stress is one contributor among several. Household tension isn't a cause you're responsible for.
What if they don't want to do anything about it?
That's their call to make, and pushing tends to backfire. You've supplied the information they couldn't get alone. You can still act on your own sleep, and the door stays open if symptoms show up later.
Sources & further reading
The reputable organizations our editorial team draws on for the anatomy, definitions, and safety guidance behind this page, and where you can read more on each topic.
General educational information about stress and the nervous system. Not medical, dental, or psychological advice, and not a substitute for diagnosis or treatment by a qualified professional.