For so long, sleep masks have been saddled with all manner of stereotypes, with some people arguing that they are feminine and frivolous, while others claim that they are likely to damage the eyelashes. Regardless of these assertions, the reality is that sleep masks are a valuable sleep aid designed to improve the quality of your sleep by covering your eyes. Different researchers have unanimously agreed that people tend to sleep better when the room is completely dark. So, they advise people to make their sleeping rooms as dark as possible during sleep time. There are different ways to achieve this, one of which is the use of sleep masks.