The rating should be TENPLUS! I have suffered from sleep apnea for years and have unsuccessfully tried the CPAP option — CANNOTSLEEP with the CPAP. I visited the Chandler«Core Sleep Solutions» and in TWO short weeks Core Sleep Solutions basically changed my life! I had tried a few appliances advertised on TV, however, none of them worked and they were PAINFUL to use. I later discovered some people can ruin or lose teeth trying different TV offered appliances. The oral appliance Dr. Core prescribed is PAINLESS and simple to use. The process leading to the appliance was also simple. The first visit consisted of x-rays and verbal discovery of my overall health. The following visit consisted of a home sleep study confirming my sleep apnea and nightly oxygen depletion. A succeeding visit entailed taking a molding image of my teeth. Ultimately, I was issued the oral appliance. Very simple steps. The staff informed me of what to expect(increase and tapering off of dreams) and encouraged me to contact them if I experienced problems or side effects. All questions were answered and I left their office looking forward to my first decent sleep in years! The first night I had THIRTY dreams(it was like the Dream Flood Gates had opened). The dreams subsided to a comfortable THREE a night by the end of the first two weeks. I immediately noticed chest pains(from my over-beating heart) disappeared. Not only was I sleeping through the night without choking, I felt RESTED and GREAT. Additionally, I discovered an increase in energy(enough to get me started on a walking exercise routine to lose weight). Now I have energy to burn! Dr. Gary Core and his Awesome Staff have literally SAVEDMYLIFE! It’s WONDERFUL to sleep and wakeup refreshed. 2015 started with the unexpected loss of a family member and is ending with my life being restored! In a nutshell, «Thank You, Dr. Core» for my 2015 Christmas Gift”! If you have Sleep Apnea, PLEASE do yourself a favor and setup an appointment with Dr. Core at Core Sleep Solutions. Sleep Apnea is nothing to play with… it can be deadly.