Enjoy uninterrupted sleep: This type of mask is perfect for people with insomnia, migraines, or difficulty falling asleep. Avoid sleeping pills with adverse side effects. This facial mask can help you sleep without any pills or supplements.Improved adjustable buckle: With the rear hook and loop adjustment, the strap can be adjusted to fit your head. A gentle, painless, and easily adjustable headband will not knot hair or pillows. Suitable for women/men/children.3D design: The eye space is wider and deeper than regular eye masks, without pressure on the eyes, allowing for free blinking without makeup. The squat design allows you to open your eyes without touching your mask with eyelashes, and there are no messy cosmetics on the plane.Blocking Light: The ergonomic contour can improve the shading performance by 99%, achieving full black and perfectly matching any height of the nose.The ergonomic design will not put pressure on your eyes, making the contour perfectly fit any facial curve.