Reusable soundproof silicone earplugs designed specifically for sleep, offering different noise reduction effects (NRR 25dB~33dB) depending on the situation, reducing background noise while maintaining clear sound. They fit snugly in the ear canal with a 360-degree seal, even when tossing and turning during sleep. The design prevents insertion deep into the ear, ensuring comfort during extended use and preventing strain on hearing. Highly durable, made of high-quality silicone, resistant to dust, and will not deform even after long-term use. They return to their original shape even when stretched, are easy to clean, and can be reused. Portable and convenient, with a compact carrying case and available in two sizes. They provide an optimal fit for various ear canal sizes. Versatile use, not only for sleep but also for concerts, noisy work environments, studying in libraries, and more. (※They do not create complete silence, but reduce noise to an acceptable level).