A certified cleaning solution includes anything approved for cleaning dentures, retainers or sports mouth guards. These products can be purchased at your local pharmacy, grocery store, and at most convenience stores. As an alternative, you can also use a mixture of toothpaste and cold water. With most cleaning products, the device should soak for at least ten minutes. Always use cold water. After soaking, rinse with cold water and allow the mouthpiece to air dry before use. Once dry, your Good Morning Snore Solution mouthpiece is clean and ready for your next sleep.