[Total Blackout] Latest ergonomic sleep mask with an upgraded nose cutout and 3D contours that fit the face snugly to completely block light, without pressing on your eyes or face. Promotes longer, deeper sleep. [Perfect for Side Sleepers] Ultra-thin sides allow for maximum comfort when sleeping on your side, back, or stomach. Minimizes pressure on your temples and keeps light out from all sides. [Pressure-Free Eye Cavities] Wider 3D eye cups provide ample space for free blinking. Zero pressure on your eyes and no worries about smudging makeup. [Soft & Breathable] Slow-rebound memory foam with an air ventilation design allows your skin to breathe naturally. The lightweight, cool, smooth fabric feels fresh and never stuffy. [Fully Adjustable] Elastic buckle strap is easy to adjust for a comfortable sleep. Fits men, women, and children with different head sizes and won't snag hair. [Warm Tips] Hand wash with water below 40℃ before the first use for optimal results. Do not bleach or iron. The specific position of the headband when wearing the sleep mask depends on comfort and eye level.