M3 Mouth Guards, Night Guard Nighttime Teeth Grinding, Clenching & Sensitive Teeth, Professional Fit Sleep Mouth Guards, 4ct
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Guests are saying
This mouth guard product has received positive feedback for its comfort, effectiveness in preventing teeth grinding, and ease of use. Guests appreciate the variety of sizes available, which allows for a customized fit. Many have noted its durability and the absence of unpleasant tastes, making it a reliable choice for nightly use. Overall, it serves as a practical solution for those dealing with teeth grinding and jaw clenching.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.7 out of 5 stars with 1237 reviews
4 out of 5 stars
29 March, 2026
originally posted on M3 Naturals
(no review title)
This product has helped with the teeth grinding at night and has shown little discoloration up to this point, so I am happy with the product.
1 reply from M3 Naturals Customer Care team - 1 month ago
Hi, thank you for sharing your experience! We’re glad to hear that our Dental Mouth Guards are helping with nighttime teeth grinding. Our guards are made from durable EVA material designed to provide long-lasting use while maintaining their clarity over time. We appreciate your feedback! Best, Inah M3 Naturals Support
5 out of 5 stars
25 March, 2026
originally posted on M3 Naturals
Comfortable, removable, hygienic mouth guards.
These heavy duty teeth protection mouth guards are great. Soft and moldable. My gums are healing. I use them with the silver gel after I brush at night with 20% hydroxyapatite every day.
1 reply from M3 Naturals Customer Care team - 1 month ago
Hi, we appreciate your great review! It’s wonderful to know that our Mouth Guards are providing a comfortable and hygienic experience. Our BPA-free mouth guard set is crafted for versatility and everyday protection. Thank you for being part of the M3 Naturals community! Best, Inah M3 Naturals Support
5 out of 5 stars
24 March, 2026
originally posted on M3 Naturals
Love these!
These are really great for the price. The first one I made I but down too hard in the molding and it wouldn’t stay put while sleeping, but the second I was more conservative and intentional and it is honestly a great fit and I now can’t sleep without it.
5 out of 5 stars
23 March, 2026
originally posted on M3 Naturals
Great quality
I have been using this product for 3 years and it helps my tooth a lot.
1 reply from M3 Naturals Customer Care team - 1 month ago
Hi Diolee, we appreciate your kind words and long-term support! It’s wonderful to hear that our Dental Mouth Guards for Clenching have been delivering great quality and fitting well into your routine. This moldable mouth guard for comfort is designed for consistent nighttime use, and we’re glad it’s been working for you. Thank you for being a valued customer! Best, Inah M3 Naturals Support
5 out of 5 stars
22 March, 2026
originally posted on M3 Naturals
Great product
Excellent mouth guard. Reasonable price. I will buy this again! I will recommend this product.
1 reply from M3 Naturals Customer Care team - 1 month ago
Hi, thank you for sharing your experience! We’re glad to hear that our Mouth Guards met your expectations in both quality and price. Our BPA-free mouth guard set is designed for reliable everyday use, and your feedback means a lot to us. We appreciate your support and recommendation! Best, Inah M3 Naturals Support
4 out of 5 stars
15 January, 2026
originally posted on M3 Naturals
Best on the market
Compared to many other brands I have tried, this brand is overall the best. Over time, I end up clenching and chewing through the mouthguard. Due to the chemical composite of other brands, it would reek havoc on my digestive system when I would inadvertently chew through the product. My only suggestion is to allow buyers. The opportunity to create a customizable box. Example, the only size in the box that actually works for me is the child, smallest size. It seems in my sleep. I clench and chew through all the other sizes. I would love to be able to get a box with four of the smallest size mouthguards.
1 reply from M3 Naturals Customer Care team - 4 months ago
Hello Angel, thank you for taking the time to share detailed feedback on M3 Naturals Mouth Guards! We appreciate hearing what has worked for you, along with your suggestion to offer a box focused on the smallest size. We always value our customers' input and consider it when evaluating our products to better meet their diverse needs, and your input helps us in this process. Best, Shiela M3 Naturals Support
1 out of 5 stars
17 December, 2025
originally posted on M3 Naturals
Add instructions
I bought it because I had a bad case of TMJ but it came with no instructions, useless.
1 reply from M3 Naturals Customer Care team - 5 months ago
Hello Joe, thank you for sharing your feedback on Mouth Guards. The step-by-step instructions are printed on the side of the box, but we realize that sometimes things can be confusing. If you’d like, please don’t hesitate to reach out to our Customer Service team at support@m3naturals.com. We’d be more than happy to provide you with the instructions directly and assist you further. Your comfort is our priority! Best, Shiela M3 Naturals Support
4 out of 5 stars
16 December, 2025
originally posted on M3 Naturals
Prevented my grinding
I have been pretty happy with the mouth guard it’s just a little bulky. I wear it at night to prevent grinding. When it starts to wear out it gets kind of bumpy. That’s when I got the 2nd one out and am using it.
1 reply from M3 Naturals Customer Care team - 5 months ago
Hello, thank you for your review of Mouth Guards. It is great to hear they have helped prevent grinding at night, and we appreciate your note about the fit feeling a bit bulky. These are made to provide custom fit nighttime protection, and it makes sense to switch to a new one once the guard starts to wear and feel uneven. Thank you for sharing these helpful details! Best, Shiela M3 Naturals Support
5 out of 5 stars
16 December, 2025
originally posted on M3 Naturals
Perfect
I have worn these for a few years. They work so much better than ones the dentist make .Soft but very effective for a night guard
1 reply from M3 Naturals Customer Care team - 5 months ago
Hi Girly, thank you for sharing your experience with our Mouth Guards! It is wonderful to hear they have worked so well for you over the past few years as a night guard. The moldable trim to fit design is meant to provide comfortable, custom-fit nighttime protection for teeth grinding and clenching. So glad they have been such a great fit for your routine! Best, Shiela M3 Naturals Support
5 out of 5 stars
15 December, 2025
originally posted on M3 Naturals
They work
I have been using them for years.. i like them...
1 reply from M3 Naturals Customer Care team - 5 months ago
Hi Crylynne, thank you for your review of Mouth Guards. It is great to hear you have been using them for years and that they work well for you. These guards are made for custom fit nighttime protection to help with teeth grinding and clenching. Glad they have been a reliable part of your routine! Best, Shiela M3 Naturals Support
5 out of 5 stars
25 May, 2025
originally posted on M3 Naturals
Good product
Easy to use. Appreciate having the different sizes.
1 reply from M3 Naturals Customer Service team - 1 year ago
Hi there! Great insight, and it's wonderful to hear that you find M3 Naturals Mouth Guards both easy to use and appreciate the variety of sizes available. Choosing the right fit is crucial for effective protection and comfort, and M3 Naturals ensures that customers can find the perfect size to meet their needs. This attention to detail not only enhances the user experience but also supports dental health by providing reliable, customized mouth guards suitable for sports, nighttime grinding, or other uses.
5 out of 5 stars
16 March, 2025
originally posted on M3 Naturals
Cleans Great!
I bought this around Christmas time and I use it everyday. It cleans my bite guard and I absolutely love it.
1 reply from M3 Naturals Customer Service team - 1 year ago
Hey Jessica! It’s awesome that the Mouth+Guard has become such a staple in your routine! Cleaning your bite guard regularly can make a world of difference, and it's great to hear it's been working so well for you. The fact that you’ve been using it every day since Christmas speaks volumes about its effectiveness. Thanks for sharing how much you love it! 😄✨
5 out of 5 stars
14 March, 2025
originally posted on M3 Naturals
Love these
I have used this as a night guard for the last few years. I enjoy it because it fits well after I trim the top part off just a bit. Easy to clean and last awhole
1 reply from M3 Naturals Customer Service team - 1 year ago
It’s great to hear that you’ve found a night guard that works well for you! 😴✨ It sounds like trimming it to your perfect fit has made it even more comfortable, and the fact that it’s easy to clean and lasts a long time is definitely a bonus! Glad it’s been helping you for the last few years. 😊
5 out of 5 stars
23 March, 2024
originally posted on M3 Naturals
Mouth guard
I like that it’s made of silicone so I’m not ingesting microplastics
5 out of 5 stars
17 November, 2023
originally posted on M3 Naturals
Comfy!
These are great! They are Super comfortable and we're easy to mold.
4 out of 5 stars
17 January, 2023
originally posted on M3 Naturals
It was great for the price.
The price is great with these. They can get a bit soft very quickly, so be very careful with the size of the appliance. This is a great option for a fraction of the price.
5 out of 5 stars
16 January, 2023
originally posted on M3 Naturals
The mouthguard is comfortable.
My dentist made a custom mouth guard for me to prevent damage from tooth clenching. The mouth guard wore out. I have been using these for about six months. I trimmed the first guard I made because it was too big for my mouth, and the cushiness of these is better than my old hard guard. Despite it being still usable, it is smaller than I wanted after heating it. The rest of the guards fit perfectly. The guards are thick when I first put them in my mouth, but I get used to them quickly.
5 out of 5 stars
8 January, 2023
originally posted on M3 Naturals
Working well so far. It's a bit of an end user.
The packaging and listing are confusing and need to be addressed. Two sizes of mouth guards are included. Each adult and child size of the clear and frosted plastic versions is the same. There is no mention of what to use where or what purpose the second version appears for in the listing. Not a big deal, just hope they can update their packaging in the future, because everyone seems to sell the same product at a similar price. In the Q&A section, I read that this is made in the USA, but the packaging only says 'Distributed by' with a Florida address. At the very least, this would be supporting an American company, but I don't see any indication that the product is made in the USA. In a costsavings measure, the directions are only on the outside of the box, and the product is the only thing in it. An observation is not really a big deal. Since it says 'boiling water, then take off heat for 1 minute to establish water temperature', the directions on the back are probably better than most. After following the directions, everything worked great and exactly as it was supposed to. I had to trim a bit so that it wasn't just filling my mouth, because they come with enough excess to fit any mouth. I only purchased this to protect my front teeth, so it may depend on your specific use case. One suggestion I can make is to cut at an angle. The materials end up with squaredoff edges that are at least 116" in thickness, which is very large in the mouth. You don't feel it as much with slanted edges. I wish there was a better way to get rid of the excess thickness. I tried a utility knife and a hobby knife. It suited my needs and is working well. There is no weird taste or anything like that. It was easy to setup.
4 out of 5 stars
21 December, 2022
originally posted on M3 Naturals
Review.
It's easy to use if you're careful. Don't burn yourself or get your mouth stuck to anything if you ask someone older to help you. I didn't have the money to get something fancy so I was very happy that this worked. I have a problem with my shoulders and jaw. If you have a smaller mouth, you may have to cut a lot off or have issues with the fitting, but you get used to it. It's best to cut it down to fit your mouth a little before you mold it. If you really press it against your mouth, the impression will be good.
5 out of 5 stars
27 November, 2022
originally posted on M3 Naturals
It works.
It was very easy to mold, you just have to make sure to put it on a ladle because it can get lost in the hot water. When it is hot, it gives off a strange smell, but it goes away when it cools down.