Mac Waking Up in the Night!

[Grasbak]

I noticed my iMac has been waking up in the night - how could I find out how this happening? I have a console log from last night:

08/01/2010 23:19:56 [0x0-0x91c91c].backupd-helper[22577] Not starting Time Machine backup after wake - failed to resolve alias to backup volume
09/01/2010 01:42:03 SubmitDiagInfo[22797] Removed expired file /Library/Logs/DiagnosticReports/SystemUIServer_2009-12-26-004610_archies-imac.spin
09/01/2010 03:42:03 SubmitDiagInfo[23079] Removed expired file /Library/Logs/DiagnosticReports/loginwindow_2009-12-26-033501_archies-imac.spin
09/01/2010 04:42:02 SubmitDiagInfo[23172] Removed expired file /Library/Logs/DiagnosticReports/loginwindow_2009-12-26-040010_archies-imac.spin
09/01/2010 04:42:02 SubmitDiagInfo[23172] Removed expired file /Library/Logs/DiagnosticReports/SystemUIServer_2009-12-26-041917_archies-imac.spin

There isnt any message as to why it woke...

 

[124c41]

are you using a usb or a wireless mouse ? when my wirelss crapped out over connection issues , i plugged in a usb spare i had ...
two hours later the imac came on from the vibrations of a heavy truck jiggling the mouse...

 

[Grasbak]

nope - no wireless devices....

i suspect it's eveTV but thought the console might show that...