Windows 7 - never seems to hibernate

I have my laptop set to sleep after 15 minutes then hibernate after 6 hours, but it never seems to hibernate. If the battery is close to 0% it will hibernate automagically. Any tips?

To find out what is waking up your Windows from sleep:

Start> Type CMD in search box> Click on CMD.exe in results above> Type in:

powercfg –lastwake

Enter




To get the more detailed info on the device that wakes your Windows up during the sleep, and the most likely suspect, type:

powercfg –devicequery wake_armed

Enter



If the PC was last awoken by itself, this will show what woke it.

A Guy

Thanks but there is no problem sleeping.

I discovered that my X300's default BIOS setting doesn't allow wake timers so it could never wake from sleep in order to hibernate.