Obstructive sleep apnoea affects over 4% of the Australian population. Obstructive sleep apnoea occurs when there is a narrowing of the upper airways due a relaxation of the throat muscles as a person falls asleep. Frequent apnoea’s occur due to the occlusion of the airway which leads to repeated brief arousals. These arousals can occur as many as hundred times and can last up to 20s. The person is often not aware of these arousals during the night. Lifestyle modification to help prevent snoring: Avoid alcohol Avoid hypnotics sedatives Weight reduction Improve sleep hygiene  Avoid heavy meals and vigorous exercise 3 hours before bed Have a quiet, dark room Comfortable mattress and pillow Avoid the supine position during sleep (as the base of the tongue collapses to the back wall of the throat). You can always use a tennis ball behind your back to prevent you from sleeping on the back) Treat nasal congestion if nasal passages are blocked Mandibular advancement splint, made by the dentist Worn during the night the appliance will hold the lower jaw slightly forward and bringing the tongue with it preventing the tissues from collapsing back into the airway. Safe, painless, effective and non-invasive.