Key benefits Blocks 99% of light for deeper, uninterrupted sleep — ideal when you need total darkness. Breathable, skin‑friendly fabric with a silky‑smooth surface for zero‑pressure comfort against the face. Three‑dimensional ergonomic cut creates an air space around the eyes so they are shaded without being pressed, keeping the eye area ventilated and comfortable. Elastic, adjustable strap fits any head circumference for a secure, custom fit. What this product does for you Eliminates light irritation and visual interference so you fall asleep faster and stay asleep longer. The specialized stereoscopic (3D) face cut allows airflow around the eyes while maintaining full coverage, reducing pressure and irritation from traditional flat masks. Can help promote local blood circulation around the eyes and may reduce eye congestion, dark circles and under‑eye puffiness with regular use. Materials and performance Soft, breathable, skin‑friendly fabric provides a silky touch and minimizes pressure on delicate facial skin. light‑blocking performance: effectively shades up to 99% of ambient light. Elastic band design with adjustable length to accommodate any head size. Compatibility and sizing One size fits most: adjustable elastic band allows easy sizing for children and adults with different head circumferences. Designed to sit comfortably on the face without pressing the eyelids, compatible with side sleepers and back sleepers. Practical use scenarios Travel: Use on planes, trains or buses to create a dark, restful environment and reduce jet lag. Nighttime sleep and naps: Effective at home for couples with different sleep schedules or for daytime sleepers and shift workers. Relaxation and rest: Helpful during meditation, eye‑rest breaks, or recovery after screen use to reduce eye strain and puffiness. Care and handling Handle gently to preserve the shape of the 3D cut and the elasticity of the band. Store flat or in a protective pouch to maintain the ergonomic form. Why choose this mask Combines ergonomic design with breathable, skin‑friendly materials to deliver comfortable, pressure‑ darkness. Adjustable fit and proven light‑blocking performance make it a reliable solution for better sleep and eye comfort.