Sleep/Wake Fail: What caused? Error report attached

Friends I have a Gateway[acer] NV52L15u running stock/oem Windows 8 and had it fail to return from sleep state this morning for the first time. Never seen this before on this notebook.
It was on battery, had plenty of battery left when I walked away.
I ran Windows 8 Maintenance App which was suggested by the Windows System advisor utility that flags such things... I don't know if it contributed the issue.

The power button would flash 5 times and then go dark when I tried to awaken. whether lid was activated or not the result was same. I pulled the battery drained the charge, used A/C power and the system is fine.
Log below: PLEASE help me debug this
Log Name: System
Source: Microsoft-Windows-Power-Troubleshooter
Date: 7/22/2013 11:15:45 AM
Event ID: 1
Task Category: None
Level: Information
Keywords:
User: LOCAL SERVICE
Computer: Gateway-A8
Description:
The system has returned from a low power state.
Sleep Time: ‎2013‎-‎07‎-‎22T14:46:08.869791400Z
Wake Time: ‎2013‎-‎07‎-‎22T16:15:42.610684100Z
Wake Source: Unknown
Event Xml:
<Event xmlns="Error">
<System>
<Provider Name="Microsoft-Windows-Power-Troubleshooter" Guid="{CDC05E28-C449-49C6-B9D2-88CF761644DF}" />
<EventID>1</EventID>
<Version>2</Version>
<Level>4</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000000</Keywords>
<TimeCreated SystemTime="2013-07-22T16:15:45.808818700Z" />
<EventRecordID>3672</EventRecordID>
<Correlation ActivityID="{AD6C148F-062A-435C-BB8A-C5125DB54C87}" />
<Execution ProcessID="1708" ThreadID="4036" />
<Channel>System</Channel>
<Computer>Gateway-A8</Computer>
<Security UserID="S-1-5-19" />
</System>
<EventData>
<Data Name="SleepTime">2013-07-22T14:46:08.869791400Z</Data>
<Data Name="WakeTime">2013-07-22T16:15:42.610684100Z</Data>
<Data Name="SleepDuration">4842</Data>
<Data Name="WakeDuration">1131</Data>
<Data Name="DriverInitDuration">841</Data>
<Data Name="BiosInitDuration">0</Data>
<Data Name="HiberWriteDuration">5043</Data>
<Data Name="HiberReadDuration">5136</Data>
<Data Name="HiberPagesWritten">114080</Data>
<Data Name="Attributes">16517</Data>
<Data Name="TargetState">5</Data>
<Data Name="EffectiveState">5</Data>
<Data Name="WakeSourceType">0</Data>
<Data Name="WakeSourceTextLength">0</Data>
<Data Name="WakeSourceText">
</Data>
<Data Name="WakeTimerOwnerLength">0</Data>
<Data Name="WakeTimerContextLength">0</Data>
<Data Name="NoMultiStageResumeReason">0</Data>
<Data Name="WakeTimerOwner">
</Data>
<Data Name="WakeTimerContext">
</Data>
</EventData>
</Event>

Please provide this information so we can provide a complete analysis (even though you're not reporting a BSOD): http://www.eightforums.com/bsod-cra...e-screen-death-bsod-posting-instructions.html

Also, please do the following:
- open Event Viewer (eventvwr.msc)
- expand the Custom Views category (left click on the > next to the words "Custom Views")
- right click on Administrative Events
- select "Save all Events in Custom View as..."
- save the file as Admin.evtx
- zip up the file (right click on it, select "Send to", select "Compressed (zipped) folder")
- upload it with your next post (if it's too big, then upload it to a free file-hosting service and post a link here).

Then, run the first and second commands here (and let us know the results):

Then please run the following DISM commands to see if there's any problems with the system (from an elevated (Run as administrator) Command Prompt). Press Enter after each one:

Code:

Dism /Online /Cleanup-Image /ScanHealth

Code:

Dism /Online /Cleanup-Image /CheckHealth

If the problem is fixable, you can use this command to repair it (from an elevated (Run as administrator) Command Prompt). Press Enter after typing it:

Code:

Dism /Online /Cleanup-Image /RestoreHealth

From this article: Repair a Windows Image

You can also run sfc.exe /scannow from an elevated (Run as administrator) Command Prompt to check for further corruption.

Click to expand...