OSX supports real hibernation not only that sleep mode that costs electricity. It really supports it. But you gotta enable or disable it manually. So what to do:

• open terminal window (I assume you’re logged in with your normal user account)
• to disable hibernation, and enable standard sleep
  enter this: sudo pmset -a hibernatemode 0
• to enable hibernation when closing the lid
  enter this: sudo pmset -a hibernatemode 1

Enjoy folks…