3D Three-Dimensional Structure Sleep Mask: The sleep mask features a 3D three-dimensional structure that fits perfectly to the shape of the eyes and nose, providing high light-blocking properties and a comfortable fit without feeling any pressure. Comfortable sleep, safe to wear while sleeping. High Light-Blocking Sleep Mask: The sleep mask has a hidden nasal wing design that fits snugly around the nose, filling the gap with the nose, blocking out light without pressure, and creating a comfortable sleep environment. High light-blocking, blocks light from the gap with the nose. Good Texture, Excellent Breathability: The sleep mask uses highly breathable silk and cotton on the inside, which are softer fabrics, allowing for comfortable sleep not only by blocking light even when worn for long periods. Because it is made with delicate stitching, it will not deform for a long time, and the seams are sturdy and not easily cracked. Adjustable Length, Elastic Strap: Unlike ear-hook type, the sleep mask does not hurt the ears, and has elasticity and the length can be adjusted with Velcro. Adjustable size to fit both children and adults, perfectly fits any head size regardless of gender. Sleep Mask, Light Blocking, Sleep Mask, 3D Three-Dimensional, Unisex, Good Sleep, Comfortable, Breathable, Travel, Adjustable, Elastic Strap, Sleep Aid, Good Sleep Goods, Birthday Present, Present 1654