I've looked online and it seems to be a mixed response from "professionals". So I wanted to ask Gurus. I got a new rig over the holidays and it's quite the power draw. So to save money on electricity I started letting it go into sleep mode. This seemed like the best alternative to on/off. As it leaves it in a powered state but not fully powered. In the past I've always left my machines on. I've read turning on/off kills the hardware sooner by sending jolts to the hardware when powering on each time. I've read leaving everything on all the time kills the hardware sooner by overuse with fans constantly on, hardware constantly powered. I've read neither are any different and choose what you want. I've read sleep mode is a good middle ground. So since there's no clear answer, I wanted to know what everyone here does and their experience with what they do. I used to leave my PC's on all the time with no issues. This is the first time I'm trying this sleep mode deal.