This product is the element perfect for tired eyes. It's convenient and modern. Everything I expected from a product like this mask. The main reason why I wanted this product, it was not sleep because I do not have problems regarding light. As I work a lot on the computer, I often feel tired. This is not normal and that's why I wanted this mask. A friend recommended me this type of therapy. A few minutes a day are awarded for relaxation. By putting this mask over his eyes, is obtained in a very short time for a fresh feeling. Good product, good quality!