BEST SLEEP MASK MUST BE MADE OF TOP MATERIAL - Not only both sides are made of 100% top quality 19 momme mulberry silk, also the DOUBLE LAYER filling is of 100% silk. Only super-soft, super-smooth pure silk offers the breathable, cool relaxation of the soothing masks found at the world’s premier spas. ^ SLEEP DEEPLY ANYWHERE ANYTIME - Get the benefits of total blackout, whether at home, in a hotel or on the plane (where bright led light and dry air can be especially harsh). The perfect travel accessories to help keep you feeling rested and refreshed. ^ SOFT SILK ELASTIC STRAP - The sleeping mask features a comfortable-to-wear and pain-free head strap. Not to mention that the mask is extremely lightweight yet fits perfectly on your face to ensure a wonderful night!^ UNINTERRUPTED SLEEP WITH NO PILLS OR SUPPLEMENTS - Ideal for insomnia, migraine headaches and dry-eye sufferers, as the breathable, natural fibers of hypoallergenic silk allows healthy oxygen in while keeping dry air out; Smooth silk does not absorb skin lotions, so it won't mess with night eye creams or moisturizers on your face. ^ GIFT IDEA - With a FREE luxury traveling bag, the perfect travel accessories to help keep you feeling good as well an excellent gift for family ,friends, shift & night worker who need deep, uninterrupted sleep and wake up refreshed.