It is great how much your two year old loves the littleone.....as she is willing to give her all the stuffies. I had twins...which is also a sleepless ordeal for a bit. Easier than yours, though as they slept in the same crib for the first 9 months and then the cribs had to be close enough that they could hear each other breath for the next year. Buy the time they were in toddler beds, they still slept in the same room but were not so focused on the other twin.
I alway wanted my girls to share a room because it teaches you to comprmise, and in an odd way, be able to focus on your own homework, thoughts, book etc., while the world goes on around you. I have known people that needed a completly quiet space to even think.
We had the four of us in one room until I was 9.5 then we moved and only had to share with two to a room.
Back to your issue...sorry. My little sisters' first two are two years appart and 2 weeks. The two year old 'gave' his favorite truck to the baby durring a nap, luckily the littleone was sleeping far enough away that she was not hurt. The pediatrition suggested removing the items from the room that could injure the baby. With a livingroom full of toys that used to be in the kids room, the little boy started climbing into the crib with his little sister to be with her. The pediatrition then said that she was not giving the little boy enough attention.....which was not the case, I think.
In the end, she told the little boy that his little sister loves him a whole bunch and when she gets older would love to play with him and his favorite truck but for now, she needs her sleep to grow up and be as big and strong as her big brother. This was reinforced over the next few weeks as he would try to snuggle with her at night. The toys went back where they belong and the kids started to sleep without waking eachother up. They are older now but still have a wonderful bond.
Hope it helps.
My 12 year old twins are Redcross Babysitter course Graduates and would love to be mothers helpers and watch the kids for you some afternoon while you sleep or get out for a bit....Just a thought.
About me... Mother of twin girls...a twin myself...married to my best friend for 20 years this July, Architect...just opened my own company in New London this January. I love kids.....