[Microwaveable Eye Mask]: Features a removable bag that can be warmed in the microwave for soothing warmth, ideal for relaxing and sleeping. [Charcoal-Infused Fiber]: The backing material contains charcoal fibers, providing far-infrared warmth that lasts longer, even after washing. [Gentle and Moist Heat]: Offering a comforting heat that absorbs into the body for ultimate relaxation. [Washable and Reusable]: The mask is fully washable, ensuring it stays clean and fresh for every use, with the charcoal effect maintained after each wash. [Perfect for Sleeping]: Functions as an eye cover for sleeping, blackout mask, and face sleeping mask, ideal for nighttime relaxation and improved sleep quality. Experience soothing warmth and relaxation with this Sleep Eyemask infused with charcoal. The backing is made of a special charcoal-infused fiber that radiates far-infrared warmth, keeping the mask warm for longer periods. This mask is perfect as an eye cover for sleeping, blackout mask, or face sleeping mask, helping you unwind and sleep better. Washable and reusable, it stays fresh and clean with the benefits of charcoal maintained even after washing.