Surrey Memorial Hospital Sleep Clinic and Lab Contact info Like Me 3 • Refer Me 3 Related Treatment Videos Sleep Apnea - Associated Medical Conditions - Diabetes What is Central Sleep Apnea? What is Obstructive Sleep Apnea? Sleep Apnea - Associated Medical Conditions Sleep Disorders Offers overnight polysomnogram sleep studies to help with the diagnosis and treatment of sleep disorders such as obstructive sleep apnea and narcolepsy.