To easily switch between sleep and hibernation enter the following commands:
Hibernate On sudo pmset -a hibernatemode 1 Normal Sleep sudo pmset -a hibernatemode 0 ** Combo Mode sudo pmset -a hibernatemode 3 ** View (Get) settings sudo pmset -g
Saves RAM to HDD and turns off entire computer. When it boots back up, it loads the RAM image from disk and you start from where you were.
Puts key components off, but keeps RAM in RAM and power to many components.
Save to disk but use RAM if possible. If you lose power you are not dead in the water, but if you are powered up it is still fast. This is the default shipped setting. This one seems to be the best to use during most average usage.