Q: My Maverics can't sleep!!

Please test after taking each of the following steps.

Step 1

Back up all data.

Triple-click anywhere in the line of text below on this page to select it:

~/Library/Caches/com.apple.AddressBookSourceSync

Right-click or control-click the highlighted line and select

Services ▹ Reveal

from the contextual menu.* A folder should open with an item selected. Move the selected item to the Trash.

Log out, log back in, and test. If there's no change, go to the next step.

*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination command-C. In the Finder, select

Go ▹ Go to Folder...

from the menu bar, paste into the box that opens (command-V). You won't see what you pasted because a line break is included. Press return.

Step 2

If you use iCloud, uncheck the box marked Contacts in the iCloud preference pane. Press return to confirm, or click Keep on Mac in the dialog that opens.

Step 3

From the list of groups on the left side of the Contacts window, select All On My Mac. If that group doesn't exist or is empty, skip this step. Otherwise, from the menu bar, select

File ▹ Export ▹ Export vCard

Save the exported contacts to the Desktop.

Step 4

Quit Contacts. Reveal the following item in the Finder as you did in Step 1:

~/Library/Application Support/AddressBook

Move the selected folder to the Desktop, leaving the window open for now.

Step 5

Launch Contacts. Your contacts will be gone. If you took Step 3, then double-click the file you created in that step and confirm that you want to import from it. Your contacts will reappear.

Step 6

If you took Step 2, reverse it. Test. If the issue is resolved, delete the AddressBook folder and the vCard file on the Desktop and close the open folder window.

Otherwise, quit Contacts again and put the AddressBook folder back where it was, overwriting the newer one that will have been created in its place. Post your results.

This seems to have solved the sleep issue. Thanks for the solution!

However the problem will come back if I turn off iCloud contacts sync. meaning you are forced to sync contacts with iCloud. to be honest this is a stupid design to begin with. there're people who don't use iCloud, or don't want to share contacts with Apple.

I tried all steps, and how no luck. the only answer for me was to delete the addressbooksourcesync entirely from system//Library/frameworks/addressbook.app/versions/A

I’ve tried a lot of things to get rid of the problem. To no avail, until I tried to think (does not hurt, although you could restrict access to this human trait ;-)

My system, when problems existed:

  MacBook Pro Retina 13 (late 2012)

  OS X Mavericks 10.9.4

  Google Contacts enabled

  iCloud Contacts disabled

  etc...

Every night - and sometimes even when background TimeMachine backups were initiated, the system simply started to sound like a vacuum cleaner, and no login screen was obtainable. In a few cases, it was possible after waiting an eternity, and I discovered several - up to 20-30 - “ManagedClient” processes using all processor resources (balanced among them all - when you killed some of the processes, they just used more processing resources each up to the same total amount).

The system was running wild, but it was mainly noticed because we had unusually high temperatures, also during the night, for a period. Otherwise the computer did not reach the same temperature level and extreme fan noise. In most cases, I had to turn the computer off, and then start again.

The culprit was this:

pid xxxx(AddressBookSour): [0x0000000100000xxx] 00:00:15 PreventUserIdleSystemSleep named: "Address Book Source Sync”
  Timeout will fire in 1785 secs Action=TimeoutActionTurnOff

The process ID would be altered every 30 seconds or so, and the power control logs would contain horribly many entries like this, when I had started machine again:

14/07/14 12.07.30 CEST   Assertions              PID 84(apsd) Released InteractivePushServiceTask "com.apple.apsd-login" 00:01:31  id:0xc00000142 [System: PrevIdle DeclUser NetAcc kCPU kDisp]
14/07/14 12.07.34 CEST   Assertions              PID 369(AddressBookSour) Released PreventUserIdleSystemSleep "Address Book Source Sync" 00:00:30  id:0x100000173 [System: DeclUser NetAcc kCPU kDisp]
14/07/14 12.08.05 CEST   Assertions              PID 370(AddressBookSour) Released PreventUserIdleSystemSleep "Address Book Source Sync" 00:00:30  id:0x100000175 [System: DeclUser NetAcc kCPU kDisp]
14/07/14 12.08.35 CEST   Assertions              PID 380(AddressBookSour) Released PreventUserIdleSystemSleep "Address Book Source Sync" 00:00:30  id:0x100000178 [System: DeclUser NetAcc kCPU kDisp]              
Note the difference between sync attempts, and the PID change. This behaviour can continue “forever”. Typically until the notebook has been turned off.
14/07/14 13.00.46 CEST   Assertions              PID 653(AddressBookSour) Released PreventUserIdleSystemSleep "Address Book Source Sync" 00:00:30  id:0x100000266 [System: DeclUser NetAcc kCPU kDisp]
14/07/14 13.01.17 CEST   Assertions              PID 661(AddressBookSour) Released PreventUserIdleSystemSleep "Address Book Source Sync" 00:00:30  id:0x100000269 [System: DeclUser NetAcc kCPU kDisp]
14/07/14 13.01.47 CEST   Assertions              PID 663(AddressBookSour) Released PreventUserIdleSystemSleep "Address Book Source Sync" 00:00:30  id:0x10000026a [System: DeclUser NetAcc kCPU kDisp]             


It’s happened for some time now, but I’ve not always had iCloud contacts disabled. So, I tried the following:

 

Make sure, that iCloud AND Google contacts are switched off on all iPads and Iphones. Answer yes to delete.
Enable iCloud contacts. Let Google contacts be active (they are used to sync to Google and thus Android tablet and smartphone).
Note, that the contacts application looks a bit different on the left side.
Reboot.
Login and start the console, and enter:

   
          pmset -g assertions


You will probably see something akin to this (depending on your hardware):
 


14/07/14 17.49.57 CEST
Assertion status system-wide:
   BackgroundTask                 0
   PreventDiskIdle                0
   ApplePushServiceTask           0
   UserIsActive                   1
   PreventUserIdleDisplaySleep    0
   InteractivePushServiceTask     0
   PreventSystemSleep             0
   ExternalMedia                  1
   PreventUserIdleSystemSleep     1 ***
   NetworkClientActive            1
Listed by owning process:
  pid xxx(AddressBookSour): [0x0000000100000xxx] 00:00:15 PreventUserIdleSystemSleep named: "Address Book Source Sync”
  Timeout will fire in 1785 secs Action=TimeoutActionTurnOff
   pid 69(hidd): [0x0000000a000001fc] 00:01:52 UserIsActive named: "com.apple.iohideventsystem.queue.tickle"   Timeout will fire in 568 secs Action=TimeoutActionRelease
   pid 16(powerd): [0x000000090000012c] 00:37:21 ExternalMedia named: "com.apple.powermanagement.externalmediamounted" 
   pid 124(cupsd): [0x00000012000001e1] 00:03:38 NetworkClientActive named: "org.cups.cupsd"
Kernel Assertions: 0x2c=USB,BT-HID,THNDR
   id=500  level=255 0x4=USB mod=14/07/14 17.20 description=XHC1 owner=AppleUSBXHCI
   id=501  level=255 0x20=THNDR mod=14/07/14 17.49 description=NHI0 owner=AppleThunderboltHAL
   id=504  level=255 0x8=BT-HID mod=01/01/70 01.00 description=com.apple.driver.IOBluetoothHIDDriver owner=BNBMouseDevice
   id=505  level=255 0x8=BT-HID mod=01/01/70 01.00 description=com.apple.driver.IOBluetoothHIDDriver owner=AppleBluetoothHIDKeyboard

Keep Google contacts deactivated on your iPad/iPhone.
Activate iCloud contacts. Answer yes to merge.
Wait some minutes until everything is working as intended again.
I use ONLY my notebook to sync contacts to both iCloud and Google.
iPads etc. only access iCloud contacts.
Android gear only access Google.
This works.

This has been discovered in at least one other place from what I recall (can't recall if it was here or elsewhere).

But, it can't hurt to point it out again for other users here, well done... Unsub'd...

FYI - this is what led to "the fix" for me. I had two "Internet Accounts" in System Preferences - a Gmail account and my iCloud account.  NEITHER were set to sync Contacts...but I can't swear that was always the case. 

Anyway, I enabled Contact Sync on both accounts (Gmail and iCloud) and, ta-dah! AddressbookSour was no longer preventing sleep!

In my case having it sync those contacts doesn't really matter as all my contacts are kept in another account and I never use my Mac's built-in contacts.  But, if I feel daring, I may try switching them off and see if it comes back.  But I'm afraid to jinx it.

How long has it been since it first worked properly? I am in the middle of debugging the same problem.

After a reboot, it will take a few days for the problem to occur in my Mac Pro. Currently, it enters sleep ok for the last 24 hours. But if I do a "pmset -g assertions", I see that PreventUserIdleSystemSleep is set to 1. But it still enters to sleep mode after the timeout.

Odd.....

First of all, the value “1” in “PreventUserIdleSystemSleep” is nothing special. It's only a problem, if a process keeps this "flag" set continually, as I showed in a previous example. The "thingy" preventing sleep, was the value “1” in “PreventUserIdleSystemSleep”, but the originator of this flag was (most of the time) a contacts sync process repeated each 30 seconds (when sync to iCloud was NOT enabled). Here’s a “cut” from my “power” log (pmset -g log) as an example of one of many cases for the value “1” in “PreventUserIdleSystemSleep”, that is totally acceptable and normal:

Total Sleep/Wakes since boot at 14/07/14 19.34.03 CEST   :11

15/07/14 12.52.51 CEST   Showing all currently held IOKit power assertions

Assertion status system-wide:

   BackgroundTask                 1

   PreventDiskIdle                0

   ApplePushServiceTask           0

   UserIsActive                   1

   PreventUserIdleDisplaySleep    0

   InteractivePushServiceTask     0

   PreventSystemSleep             0

   ExternalMedia                  1

   PreventUserIdleSystemSleep     1

   NetworkClientActive            0

Listed by owning process:

*  pid 1771(backupd): [0x00000001000006c7] 00:01:55 PreventUserIdleSystemSleep named: "Time Machine backup"

   pid 1771(backupd): [0x0000000c000006c6] 00:01:55 BackgroundTask named: "Time Machine backup"

   pid 84(hidd): [0x0000000a000006b9] 00:03:33 UserIsActive named: "com.apple.iohideventsystem.queue.tickle"

    Timeout will fire in 592 secs Action=TimeoutActionRelease

*  pid 1609(ChronoSync): [0x00000001000005f3] 00:56:15 PreventUserIdleSystemSleep named: "<EZSSynchronizer: 0x1040ac400>"

   pid 16(powerd): [0x000000090000012c] 17:18:47 ExternalMedia named: "com.apple.powermanagement.externalmediamounted"

   pid 11(UserEventAgent): [0x0000000c000006d1] 00:00:15 BackgroundTask named: "com.apple.metadata.mds_stores.power"

   pid 11(UserEventAgent): [0x0000000c000006c3] 00:02:26 BackgroundTask named: "com.apple.backupd-auto"

   pid 137(mds_stores): [0x0000000c000006d0] 00:00:15 BackgroundTask named: "com.apple.metadata.mds_stores.power"

Kernel Assertions: 0x2c=USB,BT-HID,THNDR

   id=500  level=255 0x4=USB mod=14/07/14 19.41 description=XHC1 owner=AppleUSBXHCI

   id=503  level=255 0x20=THNDR mod=15/07/14 11.53 description=NHI0 owner=AppleThunderboltHAL

   id=504  level=255 0x8=BT-HID mod=01/01/70 01.00 description=com.apple.driver.IOBluetoothHIDDriver owner=BNBMouseDevice

   id=505  level=255 0x8=BT-HID mod=01/01/70 01.00 description=com.apple.driver.IOBluetoothHIDDriver owner=AppleBluetoothHIDKeyboard

From this, you can see, that there are TWO tasks, that prevent sleep. One is “Time Machine Backup” and the other my “ChronoSync” application, which is currently performing a sync operation to a NAS connected through Ethernet. Both operations (marked * above) should be left to complete their work, before my macbook goes to sleep. At least, that’s the common wisdom. Even if it wasn’t so, I’d personally prefer things to behave that way.

The important thing is this state, taken a bit later:

Total Sleep/Wakes since boot at 14/07/14 19.34.03 CEST   :11

15/07/14 13.05.17 CEST   Showing all currently held IOKit power assertions

Assertion status system-wide:

   BackgroundTask                 0

   PreventDiskIdle                0

   ApplePushServiceTask           0

   UserIsActive                   1

   PreventUserIdleDisplaySleep    0

   InteractivePushServiceTask     0

   PreventSystemSleep             0

   ExternalMedia                  1

   PreventUserIdleSystemSleep     1

   NetworkClientActive            0

Listed by owning process:

   pid 84(hidd): [0x0000000a000006b9] 00:15:59 UserIsActive named: "com.apple.iohideventsystem.queue.tickle"

  Timeout will fire in 583 secs Action=TimeoutActionRelease

*  pid 1609(ChronoSync): [0x00000001000005f3] 01:08:41 PreventUserIdleSystemSleep named: "<EZSSynchronizer: 0x1040ac400>"

   pid 16(powerd): [0x000000090000012c] 17:31:13 ExternalMedia named: "com.apple.powermanagement.externalmediamounted"

Kernel Assertions: 0x2c=USB,BT-HID,THNDR

   id=500  level=255 0x4=USB mod=14/07/14 19.41 description=XHC1 owner=AppleUSBXHCI

   id=503  level=255 0x20=THNDR mod=15/07/14 11.53 description=NHI0 owner=AppleThunderboltHAL

   id=504  level=255 0x8=BT-HID mod=01/01/70 01.00 description=com.apple.driver.IOBluetoothHIDDriver owner=BNBMouseDevice

   id=505  level=255 0x8=BT-HID mod=01/01/70 01.00 description=com.apple.driver.IOBluetoothHIDDriver owner=AppleBluetoothHIDKeyboard

Now it’s only my active sync process (marked * above), that prevents the notebook from going to sleep. Time Machine Backup has terminated, and no longer prevents my computer from sleeping. After some intensive work, the system even settles down to this:

15/07/14 14.32.26 CEST  

Assertion status system-wide:

   BackgroundTask                 0

   PreventDiskIdle                0

   ApplePushServiceTask           0

   UserIsActive                   1

   PreventUserIdleDisplaySleep    0

   InteractivePushServiceTask     0

   PreventSystemSleep             0

   ExternalMedia                  1

   PreventUserIdleSystemSleep     0

   NetworkClientActive            0

Listed by owning process:

   pid 84(hidd): [0x0000000a0000080a] 00:09:05 UserIsActive named: "com.apple.iohideventsystem.queue.tickle"

  Timeout will fire in 589 secs Action=TimeoutActionRelease

   pid 16(powerd): [0x000000090000012c] 18:58:22 ExternalMedia named: "com.apple.powermanagement.externalmediamounted"

Kernel Assertions: 0x2c=USB,BT-HID,THNDR

   id=500  level=255 0x4=USB mod=14/07/14 19.41 description=XHC1 owner=AppleUSBXHCI

   id=503  level=255 0x20=THNDR mod=15/07/14 11.53 description=NHI0 owner=AppleThunderboltHAL

   id=504  level=255 0x8=BT-HID mod=01/01/70 01.00 description=com.apple.driver.IOBluetoothHIDDriver owner=BNBMouseDevice

   id=505  level=255 0x8=BT-HID mod=01/01/70 01.00 description=com.apple.driver.IOBluetoothHIDDriver owner=AppleBluetoothHIDKeyboard

where there is nothing blocking the system from going to sleep, except me (the flag “UserIsActive” equals “1”). Everything looks relaxed and beautiful, and sleep should be possible any moment now. …any moment noooowwffhh …any …shhh

Here’s an example of a period of real and completely undisturbed sleep from the recent night:

Time stamp                Domain                  Message                                                                        Duration      Delay    

14/07/14 23.22.06 CEST   Sleep                   Idle Sleep to DarkWake: Using AC (Charge:100%)                                          

14/07/14 23.22.06 CEST   Assertions              PID 16(powerd) Created InternalPreventSleep "com.apple.powermanagement.darkwakelinger" 00:00:00  id:0xe00000455 [System: SRPrevSleep NetAcc kCPU]             

14/07/14 23.22.06 CEST   Assertions              PID 127(cupsd) Released NetworkClientActive "org.cups.cupsd" 01:06:23  id:0x1200000380 [System: SRPrevSleep kCPU]             

14/07/14 23.22.22 CEST   Assertions              PID 16(powerd) TimedOut InternalPreventSleep "com.apple.powermanagement.darkwakelinger" 00:00:15  id:0xe00000455 [System: SRPrevSleep kCPU]             

14/07/14 23.22.22 CEST   Assertions              PID 16(powerd) Released InternalPreventSleep "com.apple.powermanagement.darkwakelinger" 00:00:15  id:0xe00000455 [System: SRPrevSleep kCPU]             

14/07/14 23.22.22 CEST                           Summary- [System: No Assertions] Using AC                                               

14/07/14 23.22.22 CEST   Sleep                   Idle Sleep: Using AC (Charge:100%)                                             36619 secs

14/07/14 23.22.23 CEST   Assertions              PID 127(cupsd) Created NetworkClientActive "org.cups.cupsd" 00:00:00  id:0x1200000460 [System: BGTask NetAcc kCPU]             

14/07/14 23.22.24 CEST   SlowResponse            PMConnection: Response from com.apple.apsd is slow (powercaps:0x0)                       1997 ms      

14/07/14 23.22.24 CEST   WakeRequests            Clients requested wake events: None                                                     

15/07/14 09.32.41 CEST   Wake                    Wake [CDNVA] due to EHC1/HID Activity: Using AC (Charge:100%)                  1399 secs

15/07/14 09.32.41 CEST   Cancelled               Kernel: Response from cupsd is to cancel state change (powercaps:0x9)                   

15/07/14 09.33.10 CEST   Assertions              PID 1092(backupd-helper) Released BackgroundTask "backupd-helper" 00:00:28  id:0xc0000046c [System: PrevIdle BGTask NetAcc kCPU]             

15/07/14 09.33.11 CEST   Assertions              PID 1165(AddressBookSour) Released PreventUserIdleSystemSleep "Address Book Source Sync" 00:00:30  id:0x100000473 [System: PrevIdle BGTask NetAcc kCPU]             

15/07/14 09.33.11 CEST   Assertions              PID 221(UserEventAgent) Released BackgroundTask "com.apple.AddressBook.ScheduledSync" 00:00:30  id:0xc00000474 [System: PrevIdle BGTask NetAcc kCPU]             

15/07/14 09.33.12 CEST   Assertions              PID 127(cupsd) Released NetworkClientActive "org.cups.cupsd" 10:10:49  id:0x1200000460 [System: PrevIdle BGTask]             

15/07/14 09.34.29 CEST   Assertions              PID 1092(backupd-helper) Released BackgroundTask "backupd-helper" 00:00:30  id:0xc0000048a [System: PrevIdle BGTask]             

15/07/14 09.34.38 CEST   Assertions              PID 137(mds_stores) Released BackgroundTask "com.apple.metadata.mds_stores.power" 00:01:45  id:0xc00000485 [System: PrevIdle BGTask]             

15/07/14 09.34.38 CEST   Assertions              PID 11(UserEventAgent) Released BackgroundTask "com.apple.metadata.mds_stores.power" 00:01:45  id:0xc00000486 [System: PrevIdle BGTask]             

15/07/14 09.37.04 CEST   Assertions              PID 1180(backupd) Released BackgroundTask "Time Machine backup" 00:03:54  id:0xc00000487 [System: PrevIdle]             

15/07/14 09.37.04 CEST   Assertions              PID 1180(backupd) Released PreventUserIdleSystemSleep "Time Machine backup" 00:03:54  id:0x100000488 [System: No Assertions]             

15/07/14 09.41.21 CEST   Assertions              PID 1266(AddressBookSour) Released PreventUserIdleSystemSleep "Address Book Source Sync" 00:00:30  id:0x10000049c [System: BGTask]             

15/07/14 09.41.21 CEST   Assertions              PID 221(UserEventAgent) Released BackgroundTask "com.apple.AddressBook.ScheduledSync" 00:00:30  id:0xc0000049d [System: No Assertions]             

15/07/14 09.45.03 CEST   Assertions              PID 99(apsd) Released ApplePushServiceTask "com.apple.apsd-recreatecachedictionaries-push.apple.com" 00:00:29  id:0xc000004aa [System: BGTask]             

15/07/14 09.50.20 CEST   Assertions              PID 1274(AddressBookSour) Released PreventUserIdleSystemSleep "Address Book Source Sync" 00:00:30  id:0x1000004c6 [System: BGTask]             

15/07/14 09.50.20 CEST   Assertions              PID 221(UserEventAgent) Released BackgroundTask "com.apple.AddressBook.ScheduledSync" 00:00:30  id:0xc000004cd [System: No Assertions]             

15/07/14 09.51.29 CEST   Assertions              PID 1393(AddressBookSour) Released PreventUserIdleSystemSleep "Address Book Source Sync" 00:00:30  id:0x1000004e0 [System: BGTask]             

15/07/14 09.51.29 CEST   Assertions              PID 221(UserEventAgent) Released BackgroundTask "com.apple.AddressBook.ScheduledSync" 00:00:30  id:0xc000004e1 [System: No Assertions]             

15/07/14 09.55.45 CEST   Assertions              PID 16(powerd) Created InternalPreventSleep "com.apple.powermanagement.darkwakelinger" 00:00:00  id:0xe000004e7 [System: SRPrevSleep kCPU]             

15/07/14 09.56.00 CEST   Assertions              PID 16(powerd) TimedOut InternalPreventSleep "com.apple.powermanagement.darkwakelinger" 00:00:15  id:0xe000004e7 [System: SRPrevSleep kCPU]             

15/07/14 09.56.00 CEST   Assertions              PID 16(powerd) Released InternalPreventSleep "com.apple.powermanagement.darkwakelinger" 00:00:15  id:0xe000004e7 [System: SRPrevSleep kCPU]

Between 23.22.24 and 09.32.41 nothing happened. The system was effectively dead, quiet and inactive for more than 10 hours. No log entry. No nothing, until I woke up the system. Then I start to see sync entries - as you should with active sync immediately after wakeup after 10 hours downtime - and also “Time Machine Backup” wants a say together with a lot of other things. Immediately after wakeup, the system is a busy place, and it may take minutes before the system is not prevented from going to sleep again. This is also as it should be. From time to time i.e. contact sync has to take place. The important thing is, that it completes, and no longer blocks the computer from entering sleep mode.

Before activating iCloud contact sync, this situation was often (maybe most of the time or always ???) blocked by a sync process recurring again and again and again each 30 seconds in "perpetuity" ;-)

I hope, this will help in understanding the problem, and - if Apple looks into this - it may even lead to a fix for the problem.

The problem was immediate for me.  Rebooting never relieved it for even a time.  Additionally, I found the issue affected BOTH accounts on my computer.  Oddly, merely deleting the Gmail account did not resolve it...I had to enable Contact sync on iCloud in both accounts.  Which makes me wonder if the problem isn't ONLY the iCloud Contact sync.  I will try to experiment more tonight.

You might be right. I also suspect the iCloud Contacts sync operation - somehow - got a "code upgrade" in the upgrade from 10.9.3 to 10.9.4. There also turned other oddities up in that upgrade (i.e. suddenly the otherwise hidden drive "MobileBackups" turns visible in tools like "Disk Space" - smile).

Kurt, is your Mac Pro free of sleep problems now? I have tried everything I read from the forum but none of them worked for more than 3 days. In other words, after I applied various suggestions and rebooted the Mac Pro, the sleep problem would go away for 2 to 3 days. Then the problem comes back and stays.

Then I have to reboot the Mac Pro to enable the sleep mode again. The sad part is that my Mac Pro has developed boot problems similar to others on the Mac Pro forum. About 1/3 of the time, the boot process does not complete and I have to do a hard reset to retry.

Double whammy....

Apple, can I get my money back?

Sorry to hear about your problems. I did not see, that I had ended up in the wrong forum. The workaround works on my Macbook Pro Retina 13, and I have had no problems with "unexpected activities" since I added sync to iCloud for my contacts. In addition I have decided to deactivate power-nap, which I usually do not need.

Here's a cut-out from todays log (I've just started the critter):

Time stamp                Domain                  Message                                                                        Duration      Delay  

==========                ======                  =======                                                                        ========      =====  

21/07/14 23.09.58 CEST   Sleep                   Software Sleep pid=85: Using AC (Charge:100%)                                  41149 secs

21/07/14 23.10.04 CEST   SlowResponse            PMConnection: Response from com.apple.apsd is slow (powercaps:0x0)                       5997 ms    

21/07/14 23.10.04 CEST   WakeRequests            Clients requested wake events: None                                                   

22/07/14 10.35.47 CEST   Wake                    Wake [CDNVA] due to EHC1/HID Activity: Using AC (Charge:100%)                         

22/07/14 10.35.47 CEST   SlowResponse            Kernel: Response from powerd is slow (powercaps:0x0)                                     6008 ms    

22/07/14 10.36.17 CEST   Assertions              PID 4730(backupd-helper) Released BackgroundTask "backupd-helper" 00:00:30  id:0xc00002147 [System: PrevIdle DeclUser BGTask kDisp]           

22/07/14 10.36.17 CEST   Assertions              PID 9581(AddressBookSour) Released PreventUserIdleSystemSleep "Address Book Source Sync" 00:00:30  id:0x100002149 [System: PrevIdle DeclUser BGTask kDisp]           

22/07/14 10.36.17 CEST   Assertions              PID 233(UserEventAgent) Released BackgroundTask "com.apple.AddressBook.ScheduledSync" 00:00:30  id:0xc0000214a [System: PrevIdle DeclUser BGTask kDisp]           

22/07/14 10.39.35 CEST   Assertions              PID 9617(backupd) Released BackgroundTask "Time Machine backup" 00:03:18  id:0xc00002160 [System: PrevIdle DeclUser kDisp]           

22/07/14 10.39.35 CEST   Assertions              PID 9617(backupd) Released PreventUserIdleSystemSleep "Time Machine backup" 00:03:18  id:0x100002161 [System: DeclUser kDisp]           

Total Sleep/Wakes since boot at 16/07/14 23.05.09 CEST   :31

22/07/14 10.48.58 CEST   Showing all currently held IOKit power assertions

Assertion status system-wide:

   BackgroundTask                 0

   PreventDiskIdle                0

   ApplePushServiceTask           0

   UserIsActive                   1

   PreventUserIdleDisplaySleep    0

   InteractivePushServiceTask     0

   PreventSystemSleep             0

   ExternalMedia                  1

   PreventUserIdleSystemSleep     0

   NetworkClientActive            0

Listed by owning process:

   pid 90(hidd): [0x0000000a000020bb] 12:00:41 UserIsActive named: "com.apple.iohideventsystem.queue.tickle"

    Timeout will fire in 567 secs Action=TimeoutActionRelease

   pid 16(powerd): [0x00000009000016e2] 47:03:07 ExternalMedia named: "com.apple.powermanagement.externalmediamounted"

Kernel Assertions: 0x2c=USB,BT-HID,THNDR

   id=500  level=255 0x4=USB mod=16/07/14 23.14 description=XHC1 owner=AppleUSBXHCI

   id=501  level=255 0x20=THNDR mod=22/07/14 10.38 description=NHI0 owner=AppleThunderboltHAL

   id=504  level=255 0x8=BT-HID mod=01/01/70 01.00 description=com.apple.driver.IOBluetoothHIDDriver owner=AppleBluetoothHIDKeyboard

   id=557  level=255 0x8=BT-HID mod=01/01/70 01.00 description=com.apple.driver.IOBluetoothHIDDriver owner=BNBMouseDevice

My machine also slept like a baby between 23.10.04 CEST yesterday and 10.35.47 today - some 11 hours and 25 minutes. Please note, that I also have power-nap disabled. I do not need this computer to wakeup all hours of the day, just to check mail and appointments (my smartphone does that), and my TimeMachine runs perfectly, while the computer is awake anyway, so the need to interrupt sleep for a TimeMachine backup is not really given (and then, of course, minimized further, since... smile).

But, since you still have trouble getting the machine to sleep, there must be something extra loose in your system. I suggest, you use the terminal command "pmset -g log" each day, to discover what (and when) the "disturbing factor" gets executed. Save the logs, and compare. With just a bit of luck, you may discover the "extra factor", that you need to compensate. Without the logs, you'll have a hard time discovering the culprit.

Best of luck.

I have a new late 2013 iMac that will not sleep because of addressbooksourcesync. The power management assertions show that addressbooksync is Preventing User Idle Sleep. I followed the instructions above in Linc's solution and nothing worked. I use Google to sync contacts and NOT iCloud.

Addressbooksourcesync is constantly preventing sleep. I have a Macbook Pro that does not have this issue and addressbooksync is not constantly running.

Is there anything else I can do to get control over addressbooksync?