1. 【Designed to Fit Your Ears】 These earplugs for sleep are made of medical-grade silicone, making them gentle on your ears and safe to use. They fit comfortably and won't cause pain even when you toss and turn. You won't feel tired or uncomfortable even after wearing them for extended periods, such as with sleep earplugs. IOLOYU earplugs come in two styles, each available in four colors. 2. 【High-Performance Filter】 These silicone earplugs provide approximately 36dB of soundproofing. By wearing them when you're concerned about surrounding noise during sleep, work, study, or in public places, they block out unpleasant sounds, allowing you to relax. However, these earplugs don't completely block out all sound; you can still hear necessary sounds like alarms and calls, so you can use them with peace of mind. 3. 【Versatile Applications - Perfect for Gifts】 They can be used for sleep, naps, falling asleep, travel, trains, bullet trains, airplanes, hotels, and protecting your ears at live events. They also help block out noise from neighbors, and improve concentration for studying, working, working from home, self-study, and reading, allowing you to relax. 4. 【Easy to Use】 Simply remove the earplug body, choose the ear cap size that fits you, and gently rotate the earplug to insert it into your ear. When removing the earplugs, be sure to gently and slowly twist and pull them out by the handle. Removing the earplugs suddenly can damage your eardrum. After use, wash them with water, dry them, and store them in the dedicated case. 23-46-7