Welcome to Osler Sleep Clinic! Osler Sleep Clinic is a medical facility devoted to the evaluation and treatment of patients suffering from a wide variety of sleep disorders, including Obstructive Sleep Apnea (OSA), Periodic Limb Movement Disorder (PLMD), Narcolepsy, Parasomnias (Sleepwalking, Sleep Terrors, Nightmares, etc.), Insomnia, Chronic Fatigue Syndrome (CFS) and Fibromyalgia. We offer services for patients of all ages, from children to geriatric. We conduct overnight sleep studies as well as daytime Multiple Sleep Latency Test (MSLT). We also provide specialized treatment for insomnia as well as other sleep disorders.