This is a great invention! I have used sleeping eye masks before but I felt that it is pressing hard against my eyes, well to my delicate eyelashes to be exact. The traditional eye masks I find is not really all that comfortable for me. I love the color and the simple yet smart design of this sleeping eye mask. My eyelashes are loving them too because it does not rub harshly against them. The deeper eye cavity does give more room for your eyes and as well as it does cover more light than a traditional one. It is very affordable as well considering the great product you get, which I am impressed with!