Custom Soft Night Guard


Protect Your Teeth From the Grind

We understand the short and long term effects of teeth grinding and clenching (bruxism). Teeth wear, cracks, chips and sensitivity don’t just happen overnight but once it begins, costly dental repair is needed. That’s why we’ve designed a night guard that’s both effective and comfortable. Our Soft Custom-Fit Night Guard is made to fit your teeth like a glove, providing a secure fit that you’ll look forward to sleeping with. It’s so comfortable, you’ll forget you’re wearing it!

Saving your teeth and your pocketbook

Ask any dentist- there is simply nothing better to eat, laugh, talk and chew with than natural teeth. With Sentinel Mouthguards, your teeth are comfortably protected and your tooth structure stays preserved.

Your soft night guard won’t interfere with your speech or breathing, and it’s easy to clean and maintain. Plus, it’s free of BPA and other harmful chemicals so you can be sure you’re using the safest product available.

Experience the difference in just three simple steps:

Here's how it works 3 easy steps


Create a custom dental impression from the comfort of your home with Sentinel’s all-in-one kit including plastic trays, dental putty, and prepaid envelope – with a step-by-step instructional video, getting the perfect mold of your teeth has never been easier!

  • Prevents teeth from grinding and clenching
  • Instant relief from grinding/clenching symptoms such as face and jaw pain, headaches, and teeth sensitivity
  • Protects teeth from chipping, cracking
  • Prevents pain or tenderness in the TMJ
  • Promotes better sleep and improved oral health
  • Made in the USA with the safest materials
  • Peace of mind with our 30-day money-back guarantee and 6-month replacement warranty if you grind or wear through your guard
  • All-inclusive free shipping in the USA (international orders are responsible for shipping on the return mailer only)

Expert Fit by Professional Lab Technicians

At Sentinel Mouthguards, we’re committed to providing our customers with the best possible products and service. Our team of dental professionals has years of experience in helping patients find relief from teeth grinding and clenching, and we’ve used that expertise to create a night guard that’s both effective and affordable.

Product Description

Teeth Protection from Grinding and Clenching

Ideal for: light/moderate/heavy teeth grinding and clenching

The Sentinel Soft Custom Dental Night Guard was designed for comfort, with flexibility above and beyond the Sentinel Dual-Laminated and Hard Night Guard models. Our high polishing system and thin design ensures supreme comfort. The most popular type made in dental offices!

How does it work?

We’ll mail you an impression kit with everything you need to take a perfect dental impression. Simply mix the putty and place it in the tray, take your own impression, and send it back to us in the prepaid envelope. We’ll fabricate your custom night guard within 3-4 business days of receiving your impression. It’s easy, convenient, and all-inclusive with free shipping.

What you’ll get:

  • A complete impression kit with instructions and prepaid return mailer

  • (1) soft custom dental night guard

  • Breathable retainer case

  • Fast all inclusive FREE shipping


We Are Honored to Be Forbes 2023 Best Night Guard Pick

soft night guard forbes health best of 2023

Not sure which guard is right for you? Get expert guidance with our 60 second quiz!find your night guard match now graphic

Our Commitment To You

At Sentinel, your satisfaction is our top priority. That’s why we offer a unique warranty and return policy that stands out from the rest. If you’re not completely satisfied with your custom-fit dental guard, simply contact us within 30 days for a full refund or work with us until you get a great fitting guard that leaves you waking up with a smile. With Sentinel, you can trust that our commitment to your satisfaction is 100%.

Need additional help? Visit our help center

Say no to shortened, cracked teeth and hello to a healthy smile!

sentinel mouthguards flat teeth from grinding graphic


Wake up Smiling or Your Money Back

Located in St. Petersburg, Florida, we specialize in custom night guard and mouth guard manufacturing.  All of our products are made in the USA by professional lab technicians. We guarantee:

  • 100% satisfaction. We stand behind our products and will provide you with nothing less than our personal best from our long-standing team.
  • 30 Day Satisfaction Guarantee. If you don’t like your custom night guard, let us know within 30 days and we’ll either continue to work with you to get it right or we will refund you in full.
  • 6 Month Warranty. If you break or grind through your night guard within 6 months of purchase, we’ll replace it for you free of charge.

Have some additional questions about ordering your night guard?  We’ve got you covered. Your most FAQ’s about night guards for teeth grinding.

Need additional help? Visit our help center







Additional Information

Product Reviews

  • Ajesh Mahto


    This 3mm soft mouthguard is very sturdy. It has been very handy for me and much less expensive than my dental office. Teeth impression kit came with extra putty pack for a second attempt which I was grateful for. Process was overall quick and easy. I’m happy with my purchase.

  • Holly Lind

    Can’t stop wearing it! Has helped me so much. So glad I decided to wear this product because I worry about my teeth during the day and at night. Comfortable, light and easy to mold to your teeth. Great product!

  • Jeffrey Thomas

    Dog ate my dentist made mouth guard so I wanted to give this night guard a shot. I have a lot of discomfort from clenching my teeth at night. Affordable and comfortable! I have to use this all the time and glad it’s comfortable!

  • Gary Paluzzi

    FAST DELIVERY! I’m a terrible teeth grinder and have chewed up many store bought brands. Don’t waste your time on one size fits all guards. This night guard is super comfortable. Service was fast and friendly. Will update if I see signs of wear. So far, so good!

  • Julie T.

    Where has this been my whole life??

    I can;t believe I was paying dental office prices. I have been a victim of the dental office scam for many years. I’m an older woman and have been grinding my teeth since my 30’s. A friend told me about Sentinel Mouthguards and I decided to give them a try. Boy, am I glad I did! I know I’ll wear through this one eventually but at hundreds of dollars less than the dentist I’ll take it! Really well made, great fitting night guard.

  • Claire D.

    Love my new night guard! It’s soft but durable and cozy. When my dentist told me I was grinding my teeth, the thought of wearing anything night after night in my mouth was just unbearable. I got one made through her at first. It was hard and big and bulky. I hated it! I wouldn’t wear it but I knew I should be wearing something. After researching online, I came across Sentinel Mouthguards. I was nervous to take my impression but the customer service rep was very helpful. She walked me through the process. My night guard feels so much better than my previous one. I’ll never wear another type. Thank you Sentinel!

  • Gina Celeste

    Absolutely love this guard. I’m a heavy grinder but I cannot wear a hard guard. The 3mm soft guard works perfectly for me. This is my second one. The last one took about 18 months to wear through. Not bad and so much cheaper than the dentist. 5 stars!!

  • Suzanne T.

    Thin and comfortable! Thumbs up! _Sue

  • Katelyn M.

    Impossible to get a good impression! You guys sent me THREE kits and said none of the impressions were good enough. REFUND PLEASE

  • Robert Santos

    Fits well, stays in place, comfortable. A++++

  • Jacob Moylan

    My dentist found some damage on my teeth from grinding. He recommended Sentinel as an affordable option. I checked out the reviews online and they’re amazing. I’m grateful for the recommendation. The night guard is slim and fits perfectly to my teeth. It is a quality product.

  • Faith

    Jaw pain and headaches are GONE! I grind my teeth and have some TMJ-like symptoms. This guard makes my morning so much better. My jaw and I thank you!

Free Shipping

We ship your kit with everything you need from the molding trays and putty to the prepaid return packaging.

30 day guarantee

Try it out! If you’re not satisfied, you can always return the Mouthguard within 30 days for a full refund.

Save 20%

By entering coupon code "big spender", you save 20% on orders over $200.