5 Reasons People With TMJ Unclench Their Jaw With A Neck Pillow (Your Jaw Can’t Let Go Until Your Neck Does)

Your jaw and your neck work as a team. When your neck stays locked up, your jaw keeps clenching with it. Night guards, jaw tools, pills and Botox all work at the jaw. Hizoo goes under your neck.
- “I had no idea the pain in my jaw stemmed from my neck.”Heidy D., verified buyer
- “My neck and jaw have 60% less pain after 2 nights of 20 minutes.”Anastasia W., verified buyer
- “I’ve struggled with TMJ and it has really helped me!”Nancy V., verified buyer
“Just stop clenching,” they say. As if you know you’re doing it.
You wake up with your teeth pressed together. Your jaw is sore before you’ve said a word. It clicks when you chew. By 3 p.m. the ache has moved into your ear, your temple, the side of your neck.
So you tried the fixes. The night guard. Jaw exercises. Mewing. Mouth taping. Gua sha. Magnesium.
Some of it helped for a bit. Then the tension came back.
One owner got the advice a lot of people get:
I’ve had jaw pain for several months. Doctors just told me to take NASID and don’t stress so much. I’ve used this every night before going to bed and it has helped with my pain!
Amor D.Verified buyerMar 2026
There’s a reason nothing sticks. Almost everything you’ve tried works on your jaw. The trouble is one floor down.
Here are 5 reasons people with TMJ now leave their jaw alone and lie back on a heated neck pillow instead.
Your jaw doesn’t work alone
Muscle ties your jaw to your neck. When one fires, so does the other.
Feel that? Your neck just tightened. All you did was clench your jaw.

Researchers have measured this. At UCLA, they wired up the jaw and neck muscles of 12 people and told them to clench. The big muscle on the side of the neck fired in all 12.
In Germany, they tested 10 people lying down. The neck fired with the jaw. Then most of the neck muscles stayed switched on, at a low level, after the clench was over.
It runs the other way, too. In a study from Japan, people let their heads drift forward, the way yours does at a desk. The jaw joint slid back and the chewing muscle worked a little harder, with the mouth at rest.
- Your neck locks upstress, the desk, your phone
- Your jaw clenches with itday and night, and you don’t even notice
- The clench fires your neck againand it stays switched on
So when your neck stays locked up, your jaw keeps clenching with it.
Knots in your neck can feel like jaw pain
Here’s the part nobody tells you.
Your jaw and the top of your neck send pain on different nerves. Both plug into the same relay, right where your brain meets your spine. Doctors call it the trigeminocervical nucleus.
And your brain can’t always tell which line is ringing.
- Base of the skullHizoo’s nodes
- Sides of the neckHizoo’s nodes
- Tops of the shoulderstense from stress
- Jaw joint
- Ear
- Temple
- Cheek
In Spain, researchers pressed on knots, or trigger points, in the neck and shoulders of 25 women with TMJ pain. It set off the same pain they came in with. The knots at the very top of the neck, right under the skull, spread pain the widest of all.
Tender? Feel it in your jaw or your ear? You just found the link.

That’s why the two travel together. In a University of Alberta study of 154 people, the worse the neck problems, the worse the jaw problems. The link scored 0.82, where 1.0 is a perfect match.
It has been life changing for my jaw discomfort! I guess my neck was the problem so now I do not have the tension I use to carry around all the time!
Priscilla J.Verified buyerSept 2026
Your jaw is where you feel it. Your neck is where it starts.
Night guards, jaw tools, pills and Botox all stop at the jaw
Look at where each one works.
- Night guard, mouth guardIn your mouth
- Jaw tools, gua shaOn your jaw
- Jaw exercises, mewing, mouth tapeYour jaw again
- Pain pillsA few hours, then it’s back
- BotoxIn your jaw muscles
- HizooUnder your neck, 10 minutes a night
Not one of the others works on your neck. And when researchers checked the big ones, here’s what they found.
Night guards. A 2020 review went through 52 trials of splints, the family night guards belong to. It couldn’t show they ease TMJ pain. In another small study, people clenched with a dental appliance between their teeth. The big muscle on the side of the neck didn’t calm down.
Botox. In a 2024 trial of 75 people, Botox shots into the chewing muscles did no better for pain than salt water.
You’ve been working on the place it hurts. Not the place it starts.
I have TMJ, and having this device to keep my neck and shoulder relaxed also helps the jaw. I am noticing less headaches and more mobility in my shoulder joints.
Melissa B.Verified buyerMar 2025
Work the neck and the jaw lets go
Researchers have tested it. They left the jaw alone and worked on the neck.
- 122 young adultsAll had tender spots in their jaw muscles. Some got one session of hands-on work at the base of the skull. Two minutes later, those jaw muscles were less tender and their mouths opened wider than in the group that got nothing. A small change, and nobody touched the jaw.
- 61 women with TMJFive weeks of hands-on work and exercises for the upper neck. Their face and jaw pain dropped far more than in the group that got nothing.
- 19 people with TMJTen sessions aimed at the neck. Less pain, more room to open their mouth, and it held 12 weeks later.
- 60 people with TMJEveryone got the same self-care tips. One group also got posture training for the head and neck. After 4 weeks, TMJ symptoms fell 42% in that group. In the other, 8%.

Those were trained hands and exercises, not a Hizoo. But they all point at the same place: the neck.
And here’s the catch with trained hands. You see them once a week if you’re lucky. Your neck tightens up every single day, from work, from stress, from a clench you don’t even notice.
This is now my go to between going to my massage therapist. It helps relieve tension in the traps that other head massages can’t touch. If you suffer from TMJ, tension headaches or if you grind your teeth at night and get that tightness behind your ears buy this. You won’t be disappointed!!
B S.Verified buyerJuly 2025
Your neck locks up every day. So it needs work every day.
It goes under your neck. You just lie back.

Hizoo is a heated massager you lie back on. Four nodes knead the back and sides of your neck, clockwise then counterclockwise, like a therapist’s thumbs. Warm heat, up to 42°C (107°F), helps tight muscles let go. After 10 minutes, it shuts itself off.
Why lying back matters: your own head does the pressing. Your hands rest. Your shoulders drop. You just breathe.

- 1Lie back on a bed, couch or floor.
- 2Set your neck on the nodes, just under your skull. If they rub behind your ears, scoot down.
- 3Start on the lowest strength. It feels strong at first on a tight neck. Strong is normal. Sharp is not: go down a level.
- 4Stay the 10 minutes. It shuts itself off, so dozing off is fine.
- 5Do it every night. Your neck tightens every day.





What owners told us:
- First use“I have problems with clenching and I already felt relief after the first use.” Alexandra B.
- 5 sessions“I was having a lot of jaw and neck pain, and after about 5 treatments it feels so much better.” Cara C.
- 2 weeks“…after two weeks of use, I am feeling relief in the jaw pain I have felt for two years or more.” Heidy D.
- Keep at it“I grind my teeth at night and I’ve had a sore jaw on and off for years. Using this massager made it go away, but I have to consistently use it.” Jasmine J.
What owners say about their jaw
This thing has squashed my anxiety, my TMJ is the best I’ve ever felt, I’m sleeping better and look forward to the 10 minutes of bliss this machine gives me. HIGHLY recommend to anyone dealing with stress, anxiety or TMJ. GAME CHANGER
Kayla A.Verified buyerJuly 2025
Resolved my TMJ issues; jaw tension, sinus, tinnitus, and ear fullness issues.
Konstantine K.Verified buyerJuly 2025
I carry a lot of stress in my neck and shoulders and this little machine has literally changed my life! It has softened my muscles, I feel like my posture is so much better. I no longer feel like my neck is leaning forward. I can now sleep without pain and stiffness. My TMJ has been greatly reduced too.
Michelle D.Verified buyerJuly 2025
After one session, my continuously tight neck, shoulder and jaw muscles have significantly relaxed. They’ve been tense for years.
Teresa F.Verified buyerJuly 2025
The massage is different than other devices I’ve purchased before and helps get into the back and neck tension caused by TMJ.
Jackie T.Verified buyerMay 2026
I have persistent neck and jaw pain bc of my TMJ, so this is very relieving
Sophia J.Verified buyerMar 2026
I use it myself- really relaxing and has relieved head, jaw and neck pain.
MAURICA W.Verified buyerJune 2025
Your jaw pain may not start in your jaw.

So give the place it starts 10 minutes a night. Lie back, let the heat and the nodes work your neck, and see how your jaw feels in the morning. You have 30 days to try it.
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Questions
Does it go on my jaw?
Why not just massage my jaw?
Do I stop wearing my night guard?
I grind my teeth at night. Is this for me?
How soon will I feel it?
Will it feel strong?
Can I fall asleep on it?
What if it doesn’t help me?
What comes in the box?
Sources: The neck fires when the jaw clenches: Clark 1993 (link), Giannakopoulos 2013 (link). Head forward and the jaw: Ohmure 2008 (link). The shared relay: Silveira 2015 (link), Piovesan 2003 (link). Neck knots and jaw pain: Fernández-de-las-Peñas 2010 (link). Neck and jaw problems rise together: Olivo 2010 (link). Splints: Riley 2020 (link). Clenching with an appliance: Chandu 2005 (link). Botox and salt water: Reeve 2024 (link). Work on the neck and the jaw: Oliveira-Campelo 2010 (link), Calixtre 2019 (link), La Touche 2009 (link), Wright 2000 (link).
Advertisement. Hizoo is a massage device, not a medical treatment. Individual results vary. Reviews are word for word from verified buyers on hizoo.co. The studies tested hands-on work, exercises, splints and shots, not Hizoo. The photos are stills from our video ads, plus our own bed and product photos.