Since sleep is right up there with nutrition and exercise in terms of its role in health, make sure to give it the attention it deserves. If you can’t get as many hours as you need at night, it’s totally legit to take a nap, and many experts even recommend it.
http://www.forbes.com/sites/alicegwalton/2015/11/13/the-sleep-habits-of-highly-successful-people-infographic