SPX goes hibernate after several hours of inactivity.

[Clodderes]

Anyone has problem regarding power? I've experienced problem with the sleep in my SPX. If I don't use my computer for extended time of several hours, such as when I left it at night, the computer will be sleep or hibernate, it's like the computer is shut down. and I need to press the power button and wait for the windows logo to appear before the lock screen shows up and ready to sign in. The process could take about half a minute.

I never change the power option in the settings, and keep it at default at 5 minute screen off, and 5 minutes PC goes sleep. does anyone else experience the some problem with me?