Its been a few weeks now that I have been wearing the sleep appliance from Dr.Le and it has made a huge difference in my sleep pattern. For the past year I have been tossing and turning all night long-interrupted sleep. I even thought the pain from my shoulder was waking me up. Since wearing the sleep appliance , I sleep all night long, waking up in the morning in the same position I was in when I fell asleep. I am so much more rested and not so tired and drained.