Featuring total light elimination plus built-in sound muffling, patented sleep master is a premium quality adjustable sleep mask. Sleep master was invented for people with sleeping difficulties, for those who just enjoy napping during the day or while traveling, and even for those whose partners insist on watching TV or reading late into the night. Sleep master is an all-in-one sleep mask that combines light elimination and sound reduction, the conditions necessary for deep sleep. Sleep master's soft and cool breathable fabric and comfortable fit create a relaxing effect quickly induces an amazingly deep and refreshing sleep. A one-size-fits-all, user-friendly, simple product, sleep master allows you to enjoy healthy and natural sleep. Light and easy to carry, use sleep master anytime, anywhere. Why is sleep master unique? traditional sleep masks only cover your eyes, and are clumsy and uncomfortable. They provide no noise relief, requiring the separate use of ear plugs, which constantly fall out with the head movement typical during sleep. Instead, sleep master is adjustable, comfortably surrounds your head and covers your ears (easily connecting in the back of the head with Velcro strips), simultaneously blocking light and muffling sound, quickly inducing a deep and refreshing sleep. Hygienic, washable and durable. The superior quality materials and construction of sleep master allows for repeated hand washings, making this hypoallergenic sleep mask longer-lasting, more hygienic and therefore, a better value than other sleep masks on the market. Feel your body, mind and spirit respond to natural and restful sleep. Sleep master makes a thoughtful gift for those who have frequent airline trips or hotel stays, those who have a noisy or bright rest environment, college students the best sleep mask on the market.