My partner thanks me too.
Three weeks in and I wake up without the lockjaw. My dentist actually commented on it.
✓ Verified
TheSleepGuard
Better sleep, minus the markup.
Mouthguards, snore guards, and 22-momme mulberry silk. Medical-grade where it matters — priced like the people who use them.
Medical-grade where it matters · 60-night money back · Free UK shipping over £35
The range
Which one's for you?
Four products, four problems. Pick the one that's keeping you up.
ClenchNoMoreBestseller
ClenchNoMore
Liquid error (sections/tsg-range-strip line 70): comparison of String with 0 failedBoil-and-bite mouthguard
End the grind. Keep your teeth.
From £14.95
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SnoreNoMoreUK only
SnoreNoMore
Mandibular snore guard
Quieter nights. Less elbowing.
From £14.95
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Silk Eye Mask
Silk Eye Mask
22-momme mulberry silk
Block the light. Sleep deeper.
From £27.95
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Silk Pillowcase
Silk Pillowcase
22-momme mulberry silk
Smoother skin, calmer hair, better sleep.
From £59.95
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- Medical-gradeWhere it matters
- 60-night refundMoney back, no debate
- £15, not £400No premium for the name
- 4.6 / 5From 754 reviews
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
The reviews
Quieter mornings, all over the UK.
★★★★★
Best £30 I've spent on sleep.
The silk mask is total blackout and doesn't crush my face. I travel with it everywhere now.
✓ Verified
The elbowing has stopped.
My wife noticed the difference the first night. Took a couple of nights to get used to but worth it.
✓ Verified
My hair and skin agree.
Slept on cotton my whole life. The difference on the silk pillowcase is real — less creasing, calmer hair.
✓ Verified
#TheSleepGuard
Mornings, told by you.
@mornings_with_mae
Three weeks in, my dentist asked what changed.
@hayden.runsRecovery score up 11 points. Coincidence?
@theresa.kBlackout mask = actual lie-ins now 🙏
@ollie.codesSilk pillowcase, one week in. Sold.
@nina_loopslpTiny guard. Forgot it was in by night three.
@dadof3boysWe both sleep through now. Marriage saved.
Across the range
754
reviews & counting
4.6★
average rating
60
nights to decide
Got questions?
The honest answers.
Which product do I need?
Grinding your teeth? ClenchNoMore. Snoring? SnoreNoMore. Light waking you up? Silk Eye Mask. Want a better sleep surface for skin and hair? Silk Pillowcase. They solve different problems — most people start with one.
Where are TheSleepGuard products made?
Manufactured in China by our specialist manufacturing partner. Our medical devices (ClenchNoMore, SnoreNoMore) are biocompatibility-tested per ISO 10993 — the standard that defines safe oral contact — and registered as UK Class 1 medical devices.
Do you ship to the EU?
Not currently — our mouthguards don't carry CE marking, so we sell in the UK and US only. The silk range may expand later.
What's your returns policy?
60-night money-back guarantee across the range. If it's not working for you, email thomas@thesleepguard.com within 60 nights for a full refund — no debate.
Do I need a dentist's referral?
No. All four products are over-the-counter and self-fitting. ClenchNoMore and SnoreNoMore mould to your mouth at home in about 60 seconds — no appointment, no prescription.
Is ClenchNoMore the same as SnoreNoMore?
No — different products. ClenchNoMore is a mouthguard that stops teeth grinding. SnoreNoMore is a mandibular advancement device that holds your jaw forward to reduce snoring (UK only).
How does the subscription work?
On the ClenchNoMore page, choose your pack and tick Subscribe & Save. Your next 4-pack auto-ships every 4 months at a discount. Skip, pause or cancel anytime.
Is Thomas actually the founder?
Yes. Thomas Hartnett founded TheSleepGuard, has TMJ, and uses ClenchNoMore himself. Questions reach him directly at thomas@thesleepguard.com.
60 nights, money back.
Sleep on it.
Free UK shipping over £35. Subscriptions you can cancel anytime.
Shop the range60-night money-back across the range · Free UK shipping over £35 · Cancel anytime