I have been suffering from mild apnea and teeth clenching for years that my sleep quality is okay but not great as I woke up a few times at night and my sleep score according to my fitbit device has been below 80. After Dr. Pedro Lam\'s professional examination, he prescribed me a state of the art adjustable night guard to wear to cure my condition. Just wearing a night, I felt no jaw pain and I can feel I am much energized when I woke up(I haven\'t experienced this feeling for a long time). Then when I checked my fitbit sleep score this morning, it jumped to 89 !! A significant boost in my sleep quality(as shown). Since sleep quality is so important in contrbuting to our health and longevity, it worths every penny of investing into this device if you are serious about improving your sleep quality and health. Many thanks to Dr. Pedro Lam of solving my condition that has been bothering me for years.