I have eliminated red#40 and most caffeine. Sugar and other additives I haven't tackled yet. The elimination of red #40 improved my 5yo's behavior by leaps and bounds, I can tell in a minute if he's had something he's not supposed to have! Sleeping is not an issue they are early to bed, early to rise kids. I do try to get them outside daily for at least an hour or two. My 5yo is about to start tball so I'm sure that will help some.
Me? I'm 32 weeks pregnant so I'm always tired! My mom lives next door and takes them for a couple of hours a few times a week,so that is nice. However, sometimes they get a little too much sugar or caffeine at grandmas so I have to keep an eye on that! I'm hoping that as we move into warm weather I can wear them out really good outside!