About TheSleepGuard

Better sleep, fewer dental bills.

We make sleep + oral-health products that actually fit your life. UK-designed, medically certified, and obsessed with the boring details so you can stop being.

Thomas Hartnett Founder · 1987 Media Ltd
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.

Today TheSleepGuard makes ClenchNoMore plus SnoreNoMore and a small range of sleep-quality products — all built to the same principle: medical-grade where it matters, no premium for the name on the box.

60 nights, money back. Sleep on it.

Thomas Hartnett
Founder, TheSleepGuard
thomas@thesleepguard.com

Ready for a quieter morning?
Start tonight.

60-night money-back guarantee. Free UK shipping over £35. Cancel anytime.

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UK Class 1 Medical Device · FDA 510(k) cleared