Sleep mask 3D dark blue. The pleasantly soft foamed, opaque sleep mask is lined on both sides with skin-friendly fabric and is comfortably attached to the back of the head with an elasticated Velcro strap. The special feature of this sleep mask, however, is its three-dimensional shape: unpleasant sweating and irritating pressure on the eyelids and eyelashes are a thing of the past. Ideal for combining with the tried-and-tested earplugs from Ohropax: darkness and quiet are the prerequisites for pleasant dreams and undisturbed sleep. For anyone looking for rest and relaxation at home or when travelling, darkens completely, lightweight yet dimensionally stable, comfortable and non-slip fit thanks to wide Velcro strap, high-quality workmanship, nose remains free, no constricting feeling, complies with (R) Standard 100 the sleep mask is made of: 50% polyester 50% polyur Content: 1.