I have a new SR MBP. I usually leave it plugged in overnight, because I have it set to backup with SuperDuper! during the wee hours. Usually, in the mornings, I find that it has entered safe sleep. It also usually freezes when it comes out of safe sleep and must be restart. (I suspect it has something to do with the third-party screen saver I'm using). I don't remember enabling any setting regarding safe sleep, so is it normal for a MBP to enter safe sleep overnight? P.S. My energy saver preferences are set to sleep after three hours and sleep the hard drive when possible.