An anti-snoring mouthpiece is a customized oral appliance made to reduce or eliminate snoring by keeping the airway open during sleep. The anti-snoring mouthpiece gently repositions the lower jaw or tongue in order to prevent airway obstruction that causes the airway to vibrate, resulting in snoring. Most of these devices are made from soft, medical-grade materials to ensure comfort, safety, and ease of use. Some models are customized with an adjustable feature to accommodate various jaw sizes. The mouthpiece is mainly effective for those who experience mild to moderate snoring to improve the quality of sleep for the user as well as the sleeping partner. Anti-snoring mouthpieces are low-cost and effective devices, making them a popular non-invasive solution.