I understand, but I think there is something wrong with Windows 8 Sleep and Hibernate, it doesn't seem to work on all machines. Best to shutdown every time, then you know it will work when you switch back on. If you want quick shutdown, create a shortcut on your desktop.
Right Click on Desktop, choose New and Shortcut.
Type shutdown.exe /s /t 0 (Note spaces!)
Click 'Next' then 'Finish'
Double click the new shortcut to shut down your laptop, Rt click on it to add it to your start screen, where you will only need one click to shut down.