Reviv Mouthguard is a custom-fit dental device designed to help reduce teeth grinding (bruxism), jaw clenching, and related discomfort during sleep. It is marketed as a comfortable, at-home alternative to expensive dentist-made night guards. Many users report positive experiences, noting improvements such as reduced jaw pain, fewer morning headaches, and better sleep quality after regular use. The mouthguard is typically made from soft yet durable material that can be molded for a personalized fit, which helps improve comfort over time.

However, customer feedback is not entirely uniform. Some users mention initial discomfort while adjusting to wearing it, while others report that the fit may not be perfect for every jaw shape. A few complaints also relate to shipping delays or expectations not matching results. Overall, Reviv Mouthguard is generally viewed as a helpful sleep aid for teeth grinding, but results depend on individual usage and proper fitting.**

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