Acusnore Anti Snore Mouth Guard This professional self-moulding gum shield acts as a anti sore, bruxism (Teeth Grinding) prevention mouthpiece which acts as the ideal sleeping aid for snoring and even sports use. There are many reasons why people snore. The most common is called simple snoring brought on by tiredness ,stress ,obesity, drink, nasal or sinus problems and even your sleeping position. During sleep the mouth and throat muscles relax. The tongue can drop and the vibration of the uvula during the sleeping cycle can translate to snoring. The innovative design of the Acusnore Anti Snore Mouthpiece combats this by gently pulling the jaw forward to keep the upper airway open allowing air to flow freely. Inhaling and exhaling is uninterrupted giving you a quiet peaceful nights sleep. You must read the instructions. When fitting the gum shield. Do not remove the plastic insert in the middle of the mouthpiece until the process is complete or the mouth guard may collapse.