Like other modern Windows laptops, Sony Vaios allow you to hibernate or sleep your notebook. Sleep mode is a power-saving mode designed to let you resume using your Vaio quickly; think of it as a “Pause” button. Hibernation mode is also a power-saving state, but more akin to a “Stop” button. After a prescribed period of inactivity, hibernation mode saves open files to the hard drive and then turns off the laptop. However, rather than performing a cold boot to restore a Vaio from hibernation mode, you can just wake it. Waking a Vaio from hibernation let you load Windows and open your files and desktop much faster performing a cold boot. Writer Bio

How to Get a Sony Vaio Out of Hibernate Mode - 1