i like ghosts but HATE when they wake sims up just by gliding into there room. i love my cemetery so i don't want to get rid of them, just stop them waking the whole freaking house up five times a night. lol. i've searched the downloads and didn't see anything so hoping it exists somewhere else :p

Reaction Remover Collection by Vahi_Master. There's a few options, disabling Ghosts, Mummies, Simbots, & others:
http://modthesims.info/d/345114

It is really annoying, right? I suppose if you had a ghost living in your house IRL it would wake you up all the time, but it's not cool for Sims. At least TS3 ghosts are a step-up from Sims 1 and Sims 2. I seem to recall after a few generations I had so many ghosts running around being scary that my Sims ended up gang-murdered by the ghosts. Which is pretty scary since they were usually killing their own children.