Hello, I started OmniDiskSweeper and it found a 17 GB file called "sleepimage". On a 256 SSD Drive this is "really" big and a waste of space. I googled a bit and found out that it is a file used for the "Safe Sleep", but many sites state that "Safe sleep" is not needed anymore since OS X Lion because of the "Resume" Feature. Is this true? Is it safe to turn Safe Sleep off (Yes I know, when the battery dies the sleeping system dies ,too)?