imac constantly waking up from sleep and staying awake

[rbby228]

hello everyone i recently updated my imac to maverick and im having issues with my computer randomly waking up from sleep and then staying awake until i put it to sleep again. I have to do this multiple times a day and must shutoff my imac at night so the screen doesn't stay on all night.
I checked the energy saving preferences and everything is at default (a little less than 15 minutes for the computer and display to fall asleep, plus put hard disk to sleep when possible and wake for network access checked.) I also noticed than when the computer wakes i don't hear the hard disk spinning up, which makes me believe it the hard disk stays awake.

Thanks in advance to all who help me fix this issue.

system specs:
iMac
27-inch, Mid 2011
Processor 2.7 GHz Intel Core i5
Memory 4 GB 1333 MHz DDR3
Graphics AMD Radeon HD 6770M 512 MB
Software OS X 10.9 (13A603)

 

[GGJstudios]

For sleep issues, you may find some useful ideas here:

• Mountain Lion: About Power Nap
• Determine why your Mac wakes up from sleep
• OS X Mountain Lion: If your Mac won’t go to or stay in sleep
• Mac OS X: Why your Mac might not sleep or stay in sleep mode
• One sleep problem caused by printers - solved ... and another
• If your Mac isn't sleeping properly and you have gfxCardStatus installed, try uninstalling it.

 

[MacGizmo]

Do you have a third-party keyboard or mouse (with drivers installed)? Many times that is the problem.