The color of your bedroom walls can affect the quality and duration of your sleep. Studies show that darker hues tend to have a calming effect, which helps promote better sleep. Furthermore, those who slept in dark rooms also reported feeling more rested upon awakening than those in lighter-colored rooms. Having a dark room aids in improving the quality of your sleep as our brains naturally produce melatonin when exposed to darkness, which helps us to relax and fall asleep faster. Additionally, darkness helps us keep our circadian rhythm in check, which helps us become more productive during the day.