These earplugs for sleep block noises that may interfere with your sleep, making it easy for you to fall asleep and enjoy a comfortable and quiet sleep, no matter whether you are at home, in a hotel or on a plane. These earplugs are not only suitable for reducing noise when you are sleeping, studying, and working, but also suitable for protecting your ears when you are swimming, shooting, or listening to a concert. This soft foam has a 29db noise reduction rating that helps reduce outside sounds. Inspect each plug before use and replace it if damaged. Adult supervision is advised if used by underage children.