What is Nap App or nap mode on Mac OS X Mavericks?
This is a functionality with which the computer goes to sleep, and therefore frees memory and performance of applications that take time unused. Let that makes napping, allowing more and better optimization of those who are working in full swing.
The option has been applauded by those who use the operating system for computers Mavericks, but sometimes it is necessary to disable it, because we do not care that an application falls asleep, although we are not using at the time. Precisely for this, we have to do is open from the applications menu within the app you want to disable this feature. Click on information with the right mouse button, and then look for the option as I'll show in the screenshot and turn it to keep the nap is activated App