"If sleep doesn't serve an absolutely vital function, then it is the greatest mistake the evolutionary process ever made"
Professor Emeritus Dr. Allan Rechtschaffen, University of Chicago

But sleep does serve a vital function!

We all spend 1/3 of our lives in bed and sufficient hours of good quality sleep in a regular daily rhythm is essential for our mental and physical well-being.
Food, exercise and sleep are a three-in-one recipe, the triumvirate that creates fit, healthy and happy people.