The luxury of time

I love this picture a lot. It gave me a trademark of who I am at the moment. I guess as much as people says money and health is wealth but I guess sleeping is also considered as wealth. In fact as it stated here the luxury of time. Well we may think sleeping is for the poor but I guess good rest gave us lotsa wealth. In fact enough rest gave us more energy to do other things like exercise and making money. What is more important than sleep? Tell me then...