A sleep disorder, or somnipathy, is a medical disorder of the sleep patterns of a person or animal. Some sleep disorders are serious enough to interfere with normal physical, mental, social and emotional functioning. Polysomnography and actigraphy are tests commonly ordered for some sleep disorders. Snoring/breathing difficulties while sleeping.Bedtimerefusal.Insomnia.Sleepwalking.Sleep terrors, nightmares or nighttime fears.Unusual sleep behaviors. Excessive daytime sleepiness.Bedwetting. Treatments for sleep disorders generally can be grouped into four categories: Behavioral and psychotherapeutic treatment, Rehabilitation and management, Medication Other somatic treatment The prevalence of each sleep disorder was calculated in the Australian population aged 20 years and over. These prevalence rates do not overlap, that is they have been adjusted to avoid counting people with multiple disorders, by only counting the primary sleep condition . In 2010 there were an estimated 1.5 million Australians (8.9% of the population) with these sleep disorders, comprising approximately: 775,000 people with OSA (4.7%); 492,000 people with primary insomnia (3%); and 199,000 people with RLS (1.2%).