Power Nap on Mac – The Useful Feature

Sometimes, you just want your Desktop/Laptop PCs to perform some important tasks and stay updated with the latest happenings even when your PC is closed. Enough of waiting in front of your Mac screens for the updates to get completed, files to be copied or let the existing tasks to finish. Once you are done with your work, Power Nap will take care of all this things in the background.


Power Nap is a wonderful feature offered by Apple for its “Mac” range of Desktop/Laptop PCs that performs some much needed tasks like receiving emails, updations calendar events and contacts, updating notes or reminders and much more. Once you enable this feature, you can run all this things in the background even while your Mac is asleep in the Power Nap mode.

However, note that this feature works only with the existing Macintosh Apps like you receive mail updates only if you are using the Mail App that comes with the OS X. This means when you open your Mac Desktop/Laptop again you can see all the already received mails. Similarly, if you have multiple Apple devices like iPhone or iPad under one Apple account, any changes made to other devices -like events in calendar, or setting of reminders -will also show up once you open your Mac.


While making use of the solid state drives found in most of its Mac series PCs, the company has incorporated a new soundless functionality in its Mountain Lion OS that makes use of the Wi-Fi along with the built-in hard drive.

When Power Nap is enabled, your Mac PC consumes very little or almost no power. It gives you the liberty to close the screen lead once you are done with your task. Also the cooling fans are turned off once it goes into Power Nap mode. This way you can ensure that your PC processor does not consume extra energy and effort for tasks you are not doing.


Below is a list of activities that your Mac can perform when put in Power Nap:

  • Mail App can receive new messages.
  • Contacts are kept up to date with any changes made on other Apple devices.
  • Calendar can receive new invitations and updates.
  • Reminders will stay up to date with changes made on other Apple devices.
  • Notes will stay up-to-date with changes made on other Apple devices.
  • Documents stored in iCloud will remain up to date with changes made on other Apple devices.
  • Photo Stream will remain up to date with changes made on other Apple devices.
  • Find My Mac will update the location of the Mac, so that you can find it while it’s asleep.
  • VPN on demand continues working so that your corporate email updates securely. (Power Nap supports VPN connections that use a certificate to authenticate, not VPN connections that require entering a password.)
  • Mobile Device Management will be able to remotely lock and wipe your Mac.

Below is a list of activities that your Mac can perform when put in Power Nap and plugged in to the AC power:

  • Software updates will get downloaded
  • Mac App Store items (including software updates) will continue downloading in the background
  • Time Machine will perform backups
  • Spotlight will perform indexing
  • Help Center content gets updated
  • Wireless base stations can wake your Mac (Wake on Wireless)


To enable Power Nap on your Macintosh Desktop, go to System Preferences > Energy Saver. Click the box with the “Enable Power Nap” option to turn on the Power Nap feature. The default setting will already be on in case your desktop Mac is using flash storage.


While using your Mac Notebooks, go to Apple Menu > System Preferences > Energy Saver. In the Battery Tab, check the box with the option of “Enable Power Nap while on battery power”. 

Similarly in the Power Adapter Tab, check the box with the option “Enable Power Nap while plugged into a Power Adapter”. 


Once you’re done making setting changes, just put the lid off and be sure that your important things will be happening in the background!

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