When we don’t get enough quality sleep, most of us worry primarily about how tired we’ll feel the next day. It’s only when it becomes an ongoing, chronic issue that some of us start to realize the mental impact of poor sleep. It’s not just that we feel low, stressed, or unfocused: Research has shown that sleep deprivation could be a cause of certain psychological disorders as well as a symptom of it. Luckily, a few simple changes to your sleep habits and environment can be enough to improve your quality of sleep, and in turn ensure your mental well-being.