[Ultra-Precision Specifications] Only 0.98 inches thick and 0.88 oz weight - the pinnacle of sleep mask engineering. Maintains essential deep eye cups for complete blackout while eliminating unnecessary bulk for refined comfort. [Perfect Fit Technology] Designed for 20-26 inch head circumference with precision adjustment capabilities. Ultra-slim 3D construction creates spacious dome around eyes and lashes, ensuring complete freedom without pressure points. [Advanced Blackout System] Adjustable nose bridge and contoured forehead design create custom seal for complete darkness. Simple three-step adjustment: position over eyes, adjust nose bridge, secure strap for personalized comfort. [Professional-Grade Stability] Engineered with specialized fabric and perfectly tensioned elastic strap that maintains secure positioning through all sleep movements. Stays exactly where needed without shifting for back, side, or stomach sleepers. [Premium Construction & Care] Professionally crafted from skin-friendly polyamide fiber with integrated composite memory foam. Includes matching travel pouch. Machine washable with air-dry recommendation for optimal longevity. Ultra-Precision 3D Sleep Mask - Engineered for Perfection Transform your sleep experience with the ZLZQER Black Ultra-Thin 3D Sleep Mask, meticulously engineered to deliver complete blackout in an incredibly lightweight design that's perfect for side sleepers and lash extension users. ⚡ ULTRA-PRECISION SPECIFICATIONS At only 0.98 inches thick and weighing just 0.88 oz, this mask represents the pinnacle of sleep mask engineering. We've maintained essential deep eye cups for complete blackout while eliminating unnecessary bulk, creating a refined design that delivers superior comfort from night one. 🎯 PERFECT FIT TECHNOLOGY Designed to accommodate 20-26 inch head circumference with precision adjustment capabilities. The ultra-slim 3D construction creates a spacious dome around your eyes and lashes, ensuring complete freedom of movement without any pressure points. 🌑 ADVANCED BLACKOUT SYSTEM Experience complete darkness with our adjustable nose bridge and contoured forehead design that creates a custom seal. Simple three-step adjustment: position over eyes, adjust nose bridge for perfect fit, then secure strap for personalized comfort that blocks light from every angle. 🛡️ ALL-POSITION STABILITY Engineered with specialized fabric and perfectly tensioned elastic strap that maintains secure positioning through all nighttime movements. Whether you're a back, side, or stomach sleeper, this mask stays exactly where you need it without shifting or sliding. 🧬 PREMIUM MATERIAL SCIENCE Professionally crafted from premium skin-friendly polyamide fiber outer layer with integrated composite memory foam cushioning. This advanced combination provides exceptional breathability, temperature regulation, and hypoallergenic properties that prevent overheating while maintaining luxurious softness. ✈️ TRAVEL & CARE CONVENIENCE Includes matching travel storage pouch for easy portability. Machine washable with air-dry recommendation for optimal longevity. Durable construction maintains shape and effectiveness through repeated use. Perfect for shift workers, frequent travelers, meditation practitioners, and anyone seeking deep sleep without compromise.