Good sleep. We all want and need more of this rest and relaxation time. As a society, we may very well have the worst sleeping habits of all time. And unfortunately, it's starting to show … especially when it comes to our health. We're suffering more than ever before, and as it turns out, sleep may be a big culprit. If you’re not getting enough sleep, take a look at these reasons why you should make quality sleep a regular part of your life.The Brain Can’t Function Without ItThere's almost nothing worse than that foggy brain feeling that makes it almost impossible to focus or think. When you don't get enough sleep, that feeling is almost a constant. It's difficult to pay attention, difficult to stay on task, and difficult to feel and be productive. The more quality sleep that you get, the less likely you are to feel this way, and the more likely you are to feel refreshed and focused.The Immune System Needs ItThe immune system is massively important. It's the body's natural defense against foreign invaders such as germs and bacteria. When you don't get enough sleep, the immune system suffers. It may not be able to work as effectively as it should, which then means that illness may be more prevalent in your life. Get more sleep and this important part of the body may see a boost, leaving you healthier than ever before.It’s Necessary for Mental and Emotional StabilityThe way that we feel mentally and emotionally is a big deal. If we’re mentally or emotionally unstable, it may mean lowered productivity, headaches, overwhelming feelings and emotions, and even an inability to function normally. While we all feel this way a little from time to time, a lack of sleep exacerbates it. It makes everything feel bigger, scarier, and worse than reality. If you’re able to improve your sleep, you may notice that you feel more stable in these areas, and this means a happier and healthier life professionally and personally.We need rest. We need that deep, muscle relaxing, dreamless sleep. We need it to function, and we most definitely need it to thrive. Get a little more quality sleep in your life, and you may notice a boost in health and an improvement in quality of life in no time.