Our bed was too high to sidecar with the cot.. But I had both my kids in our room till DS was 1 (DD is 22 mths older).. DS's cot was beside my bed, but I could walk between them..

I would've loved to be able to do it though. I am not comfortable with co-sleeping (too heavy a sleeper and overweight), but having the kids that close but within their own space would have been perfect.. If she is used to sleeping on your side, not in the middle, then I think she would adjust quite well.. The bed mattress and cot mattress would have to be the same height for me to be comfortable with it though.