I have read over and over how many users have sleeping issue problems. The way I look at it is just leave your computer on. Mine runs 24 hrs. a day 365 days a year. I never put it to sleep. Yes you well save a little hydro but your problems will go away. When I am not sitting at the computer I turn off the monitor. I have done this for the last 10 years on the PC and since Feb.14 on my new MacPro without any issues. So in my opinion, leave your Macs on and turn off your monitors when not in use.