I myself am new to the Love and Logic approach. But it deals with giving choices to the child (choices that you the parent are ok with). Example: Would you like the green cup or the blue cup? Would you like to zip your coat yourself or have me help you? Would you like to go to bed now, or in 10 minutes? Of course if they don't make a choice within 10 seconds or so... Oh I guess you want the green cup and proceed to give them the green cup. That should help with the overall listening (of course not all children respond to it).
As for sleeping in her room, you can also give choices there, would you like me to read you a story before I leave the room? Do you want the nightlight on or off? Do you want the door open or closed?
The Love and Logic approach is on tape/cd, in books and online. Jim Fay is one of the authors. It can't hurt to do a little research and see if it's worth a try.
Also on discipline, it talks about natural consequences. You colored on the wall, I won't let you color for a while. Throwing food, intentionally spilling milk. Supper's over. (and no more food until the next scheduled meal time). It also talks about saying what you will do. I will listen when you talk nicely to me. The car is leaving in 15 minutes. I will let you play with the toy, if I see you playing nicely with it.
I have seen some improvement with the 4 yr old in my daycare. But I haven't done a good job at being consistent, so I can't tell you exactly how well it works. But I can tell you she doesn't like to listen to me and she likes to have her own way.
Good Luck!