Ergonomic Design:The ear plugs for sleep are designed with a bionic jellyfish and fit the ear canal 360 degrees. Even if you lie on your side or turn over, The sleeping ear plugs not easy to slip off. Breathable and comfortable, no pain to wear for along time.It's worth mentioning that the non-in-ear design of our upgraded ear plugs for noise reduction eliminates the need to insert them deeply into the ear canal, thus avoiding the risk of hearing loss Safe, Reusable and Washable: The earplugs are made of super soft food-grade silicone material, which do not stick to dust and have a delicate touch, with good elasticity and memory function, and the ear plugs for sleeping noise cancelling can be pulledat will without deformation.A one-time purchase with great value for money! Help You Concentrate on: These earplugs can block out the sound of fans and air conditioner, which can help you more concentrate on your study, reading, yoga and working. Waterproof Aluminum Case: Never be without your earplugs again by using the included sturdy metal case with a waterproof rubber seal. Our compact case allows for safe and easy storage on your keychain, carabiner, backpack, or in your pocket. Easy to cleanby gently wiping the earplugs with a wet tissue or cloth. Multiple Application Scenarios: These multi-use earplugs are great for sleeping, snoring, bathing, studying, travel, sports events, fireworks display, concerts, flying, motorcycles, mowing, etc different occasions. Reduce noise, give you safe, comfortablehearing protection, relax and get the good night's sleep you need.