Sleep mask icon, Sleep icon, sleeping eye black vector icon. Sleep is one of the most important aspects of life and getting enough quality rest can have a huge impact on our physical and mental health. The right sleep mask or eye vector icon can make all the difference when it comes to getting the rest we need. This article will explore the different designs available for sleep masks, from traditional designs to modern trends, as well as provide an overview of what to look for in a good sleep mask.