VitalSleep is a legitimate company with a strong reputation for its anti-snoring mouthpiece. Customer reviews on platforms like Trustpilot rate it highly, with an average rating of 4.7 out of 5. Users praise the product for its effectiveness in reducing snoring and improving sleep quality. The mouthpiece is FDA-approved, BPA-free, and comes with a 60-day money-back guarantee and a 1-year warranty. Customers also commend the company's excellent customer service and the product's durability and customizable fit. Overall, VitalSleep is a trusted and reliable option for those seeking a solution to snoring.