Valley Oximetry Sleep Disorders Center diagnoses and treats sleep disorders such as sleep apnea, narcolepsy, and other sleep-wake cycle disturbances for patients in the Phoenix and Mesa Arizona area. Healthy Sleep Patterns ??? Sleep is a vital part of our daily health and well being, yet millions are deprived of healthy sleep patterns. 70 million Americans suffer from sleep disorders. Approximately 95 percent of affected individuals remain undiagnosed and untreated. Poor Sleep Patterns ??? Fatigue contributes to more than 100,000 police-reported highway crashes a year, causing 71,000 injuries and 1,500 deaths each year in the United States alone. Statistics ??? Surveys conducted by the National Sleep Foundation reveal that 60 percent of adults report suffering from sleep problems.