Perfect Weight - 120 Grams: This eye mask is designed through professional analysis of eye pressure, made with NANO glass beads and low-rebound memory foam to relax the nerves around your eyes, allowing you to sleep easier and better. This sleep eye mask has the perfect weight of 120 grams, the only weighted sleep mask on the market that can be worn all night. Why Choose a 3D Weighted Sleep Mask?: Umisleep's latest 3D-designed eye mask is based on ergonomics. The eye contours are deeper, which won't touch your eyelashes and apply zero pressure to your eyelids, allowing you to blink freely. Ladies don't need to worry about disturbing makeup. No Light Leakage: Our eye protector features a new unique design for the nose area that perfectly fits the facial curve to achieve seamless shading. This helps you sleep soundly and is suitable for light-sensitive individuals. Additionally, the night mask will stay in place, ensuring you feel rested after sleeping. Cool Breathable Ice Silk Fabric: Umisleep's sleep masks use cool, breathable ice silk fabric. High-rebound memory foam and ice silk fabric make the eye masks durable and breathable, almost never stuffy. You can wear it anywhere: in the office, during travel, on planes, trains, or at home. Why Choose Us?: Umisleep offers a perfect product and excellent service. We always stand behind the quality of our products, not just product quality but also high-quality customer service. We resolve your queries online 24 hours a day.