Naps are amazing things. They rejuvenate, help you feel rested, and feel wonderfully decadent. What’s not to like? The trick is 20 minutes only. It doesn’t matter if you sleep, doze or simply mull through your thoughts. Close your eyes, take 20 minutes and enjoy the results.
Why only 20 minutes? Because beyond that you go into a deeper sleep, the sort you wake up groggy from. So set a gentle alarm, and if you then need another 20 minutes, take it.