Stop the grind.
A 3 mm boil-and-bite barrier between you and a £450 dental bill.
Save £200+ vs the dentist
UK Class 1 medical
★★★★★
·
End the grind.
Keep your teeth.
ClenchNoMore is a slim 3 mm boil-and-bite mouth guard that gives your jaw the night off — and saves your molars from a £450 repair bill. Custom dentist fit, ten times less.
- Custom fit in 60 sec
- Slim & near-invisible
- Wake without jaw ache
- Saves £200+ vs dentist
- Medical-grade1
- 60-sec fit
- Wake without the ache2
- Dentist-endorsed3
- UK Class 1Medical device
- FDA 510(k)Cleared
- BPA-FreeFood-grade EVA
- 4.6 / 5From 754 reviews
754
reviews
4.6★
average rating
Under £20
vs £400 at the dentist
60
nights money-back
The grind, by the numbers
You wake up tense, and you don't know why.
One in three adults grinds their teeth at night without knowing it. By the time the dentist spots the wear, the damage is done — cracked molars, jaw tension, eroded enamel that can't grow back. Every clenched night costs you something. ClenchNoMore is the £14.95 fix you put in tonight.
- 1 in 3 UK adults grind their teeth at night
- £450 Average cost to repair a cracked molar
- £200–600 Custom dentist-made guard
- £14.95 ClenchNoMore — tonight
Why ClenchNoMore
Four things it actually does.
Wake without the ache.
No more morning jaw soreness or temple-throbbing headaches from clenching.
Custom fit, no dentist.
Mould it at home in 60 seconds. The same fit you'd pay £200–400 for, for under £15.
Slim & near-invisible.
Slim 3 mm profile and clear material. You'll forget it's there in three nights.
The fit
60 seconds. Custom for life.
Boil-and-bite is the same custom-moulding technique a dentist uses. We just skip the £200–400 chair time.
-
01
Boil
Drop the guard in just-boiled water for 20 seconds.
-
02
Bite
Place over your top teeth and bite down gently for 30 seconds.
-
03
Cool
Rinse under cold water to lock in your custom fit.
-
04
Sleep
Pop it in and give your jaw a proper night off. Every night.
A better way to protect your teeth.
You can. It'll work great. You'll also pay 10–25× more for it.
| Feature | ClenchNoMore | Dentist guard | Pharmacy guard | Doing nothing |
|---|---|---|---|---|
| Custom fit | ||||
| Slim 3 mm profile | sometimes | — | ||
| Saves your enamel | sort of | |||
| Cost | From £14.95/pack | £200–400 | £8–15 | Free (until the dentist) |
| Setup time | 60 sec at home | 2 appointments | Boil & bite | 0 sec |
| UK + US medical | varies | — |
Before & after
What 60 nights does to your jaw.
What customers tell us changes most after the first few weeks. (Replace these two quotes with real Judge.me verbatim before publishing.)
"I wake up with my jaw locked and a temple headache by 7."
"I forgot what my jaw aching feels like. Genuinely."
The materials
The same medical-grade EVA your dentist uses. Nothing else.
We don't sneak fillers in. The guard is one piece of food-grade EVA, biocompatibility-tested per ISO 10993 for cytotoxicity, sensitisation and irritation.
3 mm
profile thickness
EVA
food-grade ethylene-vinyl acetate
0% BPA
zero plasticisers, latex or phthalates
ISO 10993
biocompatibility tested
Detail · 01
Anatomically thin where it counts.
3 mm bite zone, tapering to 1.4 mm on the inner cheek. You won't gag. You won't lisp. You'll forget it's there in three nights.
Detail · 02
Certified, not just claimed.
UK Class 1FDA 510(k)ISO 10993BPA-Free
Detail · 03
Validated for 30 nights of safe wear.
What's in it
Food-grade EVA
Single-piece thermoplastic. Same family as the soft mouth guards rugby players use.
Built-in airway channel
A 4 mm aperture so you can breathe through your mouth on bad sinus nights.
Tapered side wings
Longer on the molars where most grinders concentrate force; shorter on the front teeth so you can talk.
What's never in it
BPA & BPS
Endocrine disruptors found in cheap retail guards. Never in ours.
Latex
Allergen risk. We use latex-free EVA only.
Plasticisers (DEHP, DBP)
Common phthalates that leach over time. Excluded by spec, tested per batch.
Fragrance, dye, antimicrobials
Your mouth doesn't need a flavour. Or a colour.
The reviews
754 quieter mornings.
★★★★★
My partner thanks me too.
I'd been quietly destroying my back molars for years. Three weeks in and I wake up without the lockjaw. My dentist actually commented on it.
✓ Verified
Saved me £300+ vs the dentist.
Quoted £380 for a custom guard. This fit better in 90 seconds than the demo I tried in the chair. I'm not a placebo guy. This works.
✓ Verified
Headaches are gone.
I was waking up with a tension headache 4 mornings out of 7. Now? Maybe one a fortnight. I genuinely can't go back.
✓ Verified
Slim enough to forget.
I tried two others before this — felt like I was sleeping with a hockey puck in. The 3 mm version is the sweet spot.
✓ Verified
The reviews
What sleepers actually say.
#ClenchNoMore
Mornings, told by 750+ sleepers.
@mornings_with_mae
Three weeks in, my dentist asked what changed.
@hayden.runsMy recovery score is up 11 points. Coincidence?
@theresa.kNo more 3am wake-ups with a locked jaw 🙏
@ollie.codesOrdered the 3-pack, tried the small. Game over.
@nina_loopslpTiny. Forgot it was in by night three.
@dadof3boysMy partner stopped elbowing me. We both win.
Tagged this month
1,247
posts
96%
positive sentiment
4.6★
754 reviews
The maths
How much you save vs. the dentist.
A dentist-made night guard runs £380 and lasts about two years. Slide to see what that costs you over the long haul.
You keep
£0
Dentist figure based on UK private clinic average for a custom upper-arch night guard (£300–£450) replaced biennially. ClenchNoMore figure assumes one annual 3-pack (£35.95). Severe TMJ may still warrant a professional fit.
Thomas Hartnett
How it's made
Tested to medical standards.
Every batch biocompatibility-tested per ISO 10993 for cytotoxicity, sensitisation and irritation.
From the founder
I have TMJ. My dentist told me to skip her £400 guard and buy a £20 one. ClenchNoMore is what came of that advice — done properly.
I have TMJ. Years ago my dentist told me she could fit me with a custom night guard for £400 — or I could buy a boil-and-bite mouthguard on Amazon for £20 and get the same job done. She wasn't being modest. She was telling me the truth most dentists won't.
Years later, when I was looking online for product opportunities, that conversation came back. Teeth grinding was getting worse — pandemic stress, work-from-home posture, the biohacking wave — but the guards people were buying were poorly marketed, inconsistently made, and competing on price alone. Nobody was treating it like the medical-grade fix it should be.
So we did. ClenchNoMore is a UK Class 1 medical device, FDA 510(k) cleared, and biocompatibility-tested per ISO 10993 — the standard that defines safe oral contact. That's why a 4-pack lasts four months: each guard is validated for 30 nights of safe wear.
Under £20 instead of £400. It works because the materials and standards are right — not because the marketing is louder. 60 nights, money back. Sleep on it.
Thomas Hartnett
Founder, TheSleepGuard
thomas@thesleepguard.com
As seen in
Men's Health
The Times
Stylist
Forbes
Wired
Refinery29
Got questions?
We have answers.
How long does one pack actually last?
Around four months of nightly use. The pack contains 4 guards (2 large, 2 small) and 2 retainer cases — when one starts to wear, swap to a fresh one.
Will it really fit my mouth?
Yes — that's the whole point of boil-and-bite: you mould the guard to your exact upper arch in about 60 seconds. If it feels a little big, it moulds down to your bite and you can trim the edges with scissors — and the Original pack includes both Large and Small, so you're covered either way.
Is it safe? Is it medical-grade?
ClenchNoMore is a UK Class 1 medical device and FDA 510(k) cleared in the US. The material is BPA- and latex-free, food-grade, and tested for prolonged oral contact.
Can I use it with braces, crowns or dentures?
If you have braces, dentures, loose teeth or recent dental work, check with your dentist before using any boil-and-bite guard — the mould forms to your current teeth. Stable, older crowns and veneers are usually fine, but your dentist knows your mouth best.
How is this different from a dentist-made guard?
A custom dentist guard runs £200–400 and takes two appointments. Ours uses the same boil-and-bite principle dentists use as a fallback, for around 5% of the cost. It won't replace a guard for severe TMJ — but for typical nighttime grinding, the protection is comparable.
What if it doesn't work for me?
60-night money-back guarantee. Sleep on it for two months. If you're not waking up looser-jawed, email us — full refund, no debate.
How fast is shipping?
Free UK tracked shipping on orders over £35 (every 3-pack ships free). Orders before 2 pm dispatch same day. Typical delivery 2–3 working days.
Can I return it if I change my mind?
Each guard sits in a case sealed with a foil hygiene seal. Because ClenchNoMore is used in the mouth, once that seal is opened the guard can't be returned for a change-of-mind refund — for everyone's health protection. So it's worth getting the fit right, and we're happy to help. Unopened, still-sealed packs can be returned within 14 days, and anything faulty is always covered. Full details in our returns & refunds policy.
References & basis of claims
- 1 UK Class 1 medical device; FDA 510(k) cleared. Intended to help protect teeth against the effects of night-time grinding (bruxism).
- 2 Based on aggregated customer-reported outcomes; individual results vary. Not a treatment for any underlying medical or dental condition — see a dentist for persistent jaw pain.
- 3 Dentist-endorsed: ClenchNoMore's Clinical Evaluation Report (CER) was reviewed and signed off by a registered dentist.
Sleep through the grind.
Wake up whole.
Try ClenchNoMore for 60 nights. If your jaw isn't looser, your mornings aren't softer, your dentist isn't happier — full refund.
Get my year of protection — £35.95Free UK shipping over £35 · 60-night money-back · Cancel anytime