S.W.
You know, I wish I had a magic answer, but it seems if there is no other alternative for having them share a room, it will just take time and patience. I really am a huge fan of sleep and probably an even bigger fan of a break from my children (I appreciate my children so much more when I've had a break!). There was a short time when we had our two oldest daughters sharing a room...it was not fun. They had a terrible time going to sleep with each other. It seemed to get worse instead of better. I got to the point that I was fine if my oldest daughter came to our room to sleep...at the time they were 4 and 7. My younger one just drove her nuts! Anyway, we had a futon in our family room for a while so sometimes we'd just crash there...it was fine, no big deal. People had their different opinions about it, but who cares what anyone thought...we were all getting sleep! Eventually, we were able to get another room and now they are apart from each other and all is peaceful and we are still sleeping! All situations in life really do seem temporary...