Feel Like Silk: Made of polyester and spandex with cotton inside, lightweight and breathable. Soft touch gives you a silky smooth sleep.^ No Tangled Hair Problem: With good elastic band can easily fit any head shape, no need to worry about your hair getting stuck like buttons or velcro.^ Light Blocking: The sleeping mask fits closely to your nose, but leaves the nose free. No more sleep-disturbing light leak. Enjoy a totally dark and relaxing full night sleep.^ Side Sleeper Friendly: Even if you sleep on your side, the strap can still be positioned and will not move or slip off, giving the comfortable wearing feeling.^ Great Sleep Tool: The sleep blindfold is not only suitable for nap, meditation, yoga, travel, but a perfect accessory for shift workers and business trips.