We can all agree that there are few things as satisfying as a good night of sleep. It is essential to our well-being. During sleep we heal, we learn and regain our energy. It helps us pay attention, think faster and it improves our mood. A lack of it and we become grumpy, fatigued and have difficulty concentrating. When you don’t get enough sleep, you are more likely to get injured, sick or have an accident. Drowsiness and falling asleep while driving accounts for more than 100,000 car crashes each year. According to a study by the AAA Foundation for Traffic Safety, people who sleep six to seven hours a night are twice as likely to be involved in such a crash as those sleeping 8 hours or more, while people sleeping less than 5 hours increased their risk four to five times.