Testimonials Hear from a few of the thousands of dentisst who have participated in SGS’s Dental Sleep Medicine Seminars. Additional Details & Seminar Overview Search for: Course Calendar Contact Information By Phone: 855-4-SleepGS Phone: 855-475-3374 Address: 2035 Harding St. #200 Hollywood, FL 33020 Email: sleep@sleepgs.com Seminar Video Clips