Sleep is important for proper body functionality. When you get enough sleep, your brain is restored, which makes you wake up with a clear mind and feeling refreshed. It also helps you improve your long-term memories. Sleep improves mental health in a great amount. In addition, good sleep enhances your metabolic health and reduces the risk of heart disease and diabetes. Moreover, it gets harder to get through the day when you are sleep-deprived. You will be irritable, exhausted, and cranky, which lowers your productivity insignificantly.