1. Skinfriendly material The sleep noise cancelling earplugs are made of soft textured silicone, designed to be skinfriendly and comfortable. They adapt well to your ears and are reusable. 2. Easy to clean and reuse Clean them with warm soapy water or alcohol gel, then dry naturally before reuse. 3. Comfortable to wear Silicone earplugs offer good plasticity and softness, designed to fit snugly in the ear canal without applying pressure. 4. Effective noise reduction They provide strong noise reduction by fully covering the ear and isolating external sounds, helping you reach a deeper REM sleep. Light sleepers can wear them through the night. 5. Wide application Reusable earplugs for hearing protection during travel, sleep, study, swimming, and work, delivering a quiet rest or work environment. Use scenarios Travel and hotel stays: reduce plane, engine, or ambient noise to improve rest during flights or in noisy hotel rooms. Sleep and relaxation: block disruptive sounds at night to help you fall asleep faster and stay asleep. Focused study or work: block distractions in libraries, offices, or dorms for better concentration. Swimming and water activities: suitable for use in water environments to minimize noise and protect ears during activity. General quiet environments: create a calm, lownoise space at home or in shared spaces.