In this article i want to show you how to enable Hibernation in Windows 8 :
Step 1 : In your system tray, click the battery icon and select More power options from the panel that pops up.
Step 2: In the power options window, select either “Choose what closing the lid does” or “Choose what the power button does” from the left panel.
Step 3: In the next window, click the blue text that says “Change settings that are currently unavailable”
Step 4: At the bottom of the windows, a new set of options will become available. Check the box next to Hibernate and click Save changes.
That’s it – Hibernate will now show up in power options. Pull up the Charms bar using the Win + C combination, go to Settings and click the Power button. You’ll see that Hibernate has been added to the list, allowing you to save your system state at any time and resume where you left off.