Windows 8: Where's the Standby Option?
Forget Standby. Windows 8 replaces XP's Standby with Sleep.
Do remember that you can 'Switch User' this will save the other person's open files. Not really a sleep or hibernate setting, just an idea for specific circumstances.
Premature Waking from Hibernation
All manner of software and hardware can trigger Windows 8 to wake up from Sleep or Hibernate. Thus the first question is the old chestnut: 'Is this insomniac behavior due to Hardware or Software?'
USB devices are common causes for computers waking prematurely. In the case of accidental mouse activation, consider laying the mouse on its back until you find a better solution.
To troubleshoot the Sleep Mode problem visit the Device Manager
1) Control Panel --> System and Security --> System --> Device Manager.
2) Right click the suspect device
4) See if it has a Power Management Tab.
5) If so, then remove the tick next to: 'Allow this device to wake up the computer'.
Hardware Example: The Network adapter --> Advanced menu
Select: 'Wake up capability'. Choose 'None'.
Plan A) Blame the Task Scheduler! Start Search, Task Scheduler. (Else look in Administrative Tools)
i) You are bound to find suspects.
ii) 95% of them will be innocent programs that need to be scheduled.
iii) Good luck in weeding out the true culprit(s).
Plan B) Blame a virus checker.
Plan C) Blame a virus!
Try a completely different strategy, investigate recording what is happening with Performance, however, this is a black art.
Summary of Windows 8 Sleep Mode and Hibernate
Ever since XP it has been a worry whether a computer will actually awaken from Hibernate or Sleep. However, with each succeeding Windows version, sleep seems more reliable, and the Windows 8 computers seem to magically to wake-up when you tickle them with the mouse our Enter key.
It has always been the case that power management is more important on a laptop than a desktop, consequently they have more components to configure, for example the battery, and also the lid.