I am a huge fan of power naps, it is one of my favorite things to do. I love laying there and just letting my thoughts swirl and flow as I peacefully drift away. The key is when you wake up, get up. If you fall back to sleep you will get groggy. Here is a great article to further your knowledge on why Naps are a great idea!

http://michaelhyatt.com/why-you-should-take-a-nap-every-day.html