Windows Without Shades
Shades, blinds, or curtains are a must to get good quality sleep, especially if you’re a night owl or late riser.
Light can obviously wake you up and interrupt important sleep cycles, but what you might not know is that too much light in your sleeping environment has also been linked to heart problems and higher obesity.
Of course, these problems could be a result of the consequential sleep deprivation. So keep the light out until you wake up, at which point getting lots of natural light can actually help you wake up and feel alert.