In today’s fast-paced world, a good night’s sleep has become something of an indulgence. It’s fallen down our list of priorities behind work, chores, social time, and entertainment. However, sleep shouldn’t be a luxury. It’s as important to your physical and mental health as food and water. The body’s need for sleep is a relatively new research field. Scientists are looking into what happens to the body during sleep and why the process itself is so essential.