Lifehacker - Implement Advanced "Siestas" for Improved Sleep - Nap
http://lifehacker.com/5302591/implement-advanced-siestas-for-improved-sleep

Hah thats a good one very interesting.

Daniel Tenner has spent a lot of time thinking about (and taking) naps. What follows is his experience learning to master 20 minute power naps even though he normally takes 30 minutes to fall asleep.