It is exactly as the friends say in the other comments.
It's hard to get used to, but it really works. Because I have measured with the snore app the snoring I did every night in about 6:30 hours of sleep, using the mouthpiece it dropped to almost 1/9!
In the morning, sometimes I find it has come unbuttoned from one side, but okay, it's a small issue.
I will buy it again when needed.

It does what it promises but at the same time it is also difficult to get used to. If you have patience, the snoring stops.

It is a perfect product and does the job, it eliminated snoring and reduced the apneas in very normal episodes. After 1 month of use, I made a personalized orthodontic only to feel comfortable 100%. I only had difficulties the first 3 days, then I got used to it. I recommend it

I have bought and been using the mouthpiece for about 20 days now.
What I have to share is that initially I had a lot of difficulty getting used to using it all night. Especially the first night, I slept very little. Even after 20 days, I still have some minor difficulties, but every day it gets better. It definitely takes time to adjust. However, the persistence is worth it because the result for me was excellent. I use an app called snoring to measure results before and after. On the negative side, sometimes the mouthpiece comes off from my mouth and I find it in the bed in the morning. Also, in the morning after taking off the mouthpiece, I have some minor discomfort in my jaw and gums, but it goes away very quickly.

Well
Regarding the product, serious quality construction.
It does what it promises.
At first, it is difficult to get used to it in the mouth, it is uncomfortable and you feel like it shifts your jaw,
In the first days you have pain even in your teeth but all this passes after about 10 days.
Reduction in snoring from the first day by 80% all proven as I measure and record my sleep with Apple Watch.
Sometimes I take it out during my sleep without realizing it.
The product is worth it. It is difficult at first to get used to it and every time every night you put it on you feel a little strange but it is worth it as it changed the quality of my sleep and breathing from the first night

It is indeed effective. Personally, I didn't need to go beyond the second position. The only negative thing is that it is quite bulky and doesn't feel very comfortable, but it hasn't caused me any sleep problems. It is definitely worth trying.

The unique of its kind with serious construction. Definitely improves the issue of snoring-breathing. Bulky, fills the mouth unpleasantly. On arms from 3 and above there is a real feeling of pulling the lower jaw outwards.

The product is the only one for this price on the entire internet. Anyone who searches for anything else will pay three times the cost. As a product, it is very good, it does what it says. You soak it in hot water for ten minutes to soften it, bite into it to form your impression, and let it cool. The first few days are very uncomfortable, you won't sleep easily at all. Initially, I used it on weekends when I could stay up late enough to be exhausted and able to sleep with it in my mouth. You have to persist. Eventually, your brain gets used to it and you can sleep with it. The important thing is that IT WORKS. It will solve your problem if you persist and manage to get used to it

Very bulky and doesn't close the mouth, so I couldn't sleep. Not convenient at all, even on the smallest staircase.

Excellent quality as a product. In theory, it might work for someone with a minor breathing problem. It takes time to get used to it and gradually increase the levels that push the jaw forward, otherwise your teeth will hurt a lot. Unfortunately, it didn't help me. I needed CPAP.

A little uncomfortable the first 2-3 days but you get used to it and don't feel it at all afterwards.
There is a video on YouTube that shows the preparation very easily and simply. I have sleep apnea due to a long tongue and I struggled to wake up in the morning, many times I felt like I woke up more tired than I was the previous night. From the second day I used the mouthpiece, I felt a huge difference, often now I wake up half an hour before the alarm clock ready to get up immediately. Sleeping with other people was not possible due to excessive noise from snoring. Now I don't make any sound at all. I wear it every night for 1 month now and I have no complaints. It's worth every penny, I believe

Prefer something that might give you orthodontic treatment. It brings me dry mouth and strange dreams for now. It falls off after three hours. Maybe it needs to be slept on your back. I will try it a little longer but for now, I consider it a waste of money

I bought it based on the comments I saw on skroutz and because of the intense problem of snoring and snorting that I have, hoping that it would save me, as the product promises. My experience was very bad. This particular product is impossible to "fit" inside a patient's mouth without causing problems with their teeth. I managed to wear it for 2 days and the pain from the pressure on my teeth was unbearable. Essentially, it pushes the jaw forward with pressure on the teeth to release the airway and prevent blockage in the reclining position. Personally, it didn't work for me at all. It's a shame for the money I spent (100€). If you are looking for a real solution, it's better to resort to a sleep clinic and a CPAP mask. Otherwise, another option is surgery. That's all from me.

Having lost hope after visiting a dentist and trying a similar mouthpiece without results, I was surprised that a similar purchase from the internet and after so many positive reviews would solve my chronic problem. The best 100 euros I have spent. It takes some getting used to at first. But no snoring at all. And I wake up more refreshed because it helps me oxygenate maybe better.

Stops snoring. The first day it bothers you, the second day less, the third day you get used to it. It greatly improves sleep quality.

Effective product. It stops snoring even in a lying position. It takes a while to get used to it in the mouth, but it definitely does what it describes.

It successfully prevents the "dropping" of the lower jaw and saves the other half from snoring. It is better or equivalent to more expensive devices. It does exactly the same job as a similar device (equally good) that I had in my possession and had cost 250!!! Zero snoring in 25 consecutive nights of use. It has two inserts inside to cover different sizes. It requires attention in preparation to fit well the first time like all devices of this kind.

For anyone who snores, this mouthpiece is the best solution. As long as you don't have a deviated septum. I've had it for 10 days now and I can say that my life has changed. I wake up without an alarm clock and full of energy. Before using the mouthpiece, I couldn't get enough sleep and I was tired all day.

The above product, in combination with the nasal dilator airmax, helped me with snoring. Measured with the application, where I used to snore 9/10 times, now I might snore 1/10 times, much more lightly. It really does the job and is a medical device, not like other scams. It might be the only one that helps. Essentially, it helps in cases of sleep apnea if you have it and don't know it because snoring also depends on the anatomical position of the jaw. This pushes the jaw slightly, adjusts it, and keeps the airway slightly open, thus helping to prevent the opening and closing that causes snoring.