Aside from improving the quality of your sleep, these masks will save you a few bucks because they are cheaper than the costly blackout curtains and are readily available. What is more, they are easy to travel with so that you can continue to enjoy your sweet sleep even when you are away from home. Additionally, sleep masks have been proven to be a safer sleep aid than most other sleep-inducing techniques such as sleeping pills and alcohol. These masks are designed to completely cover your eyes so that the complete darkness can trick your brain into believing that it is time to sleep. Some people even say the sleep masks are just as effective as the aforementioned sleeping pills and alcohol.