Dr. Valachi and his friendly staff were professional and a genuine pleasure to work with. They continued to follow up with me (even during Covid) to see how I was doing and the results speak for themselves. I have moderate sleep apnea and with the dental appliance I am now in the “normal” range (reduced AHI from 19.4 to an average of 1). I was not able to tolerate CPAP and it caused severe insomnia and sleep anxiety. The sleep appliance works great for me and there was a lot of thought and care to make sure it was fitted properly and had no adverse side effects. Thank you to Dr. Valachi and his highly competent team.