S.R.
hmmm...my girls sleep together in bunk beds since they were 2 and 3. With a baby and a toddler...I would put toddler down first. then rock baby and put baby down. It really depends on how each of them go to sleep and how well they sleep. I do suggest an air machine though. It is just white noise and my girls have slept with it since they were small. I got mine in the skymall catalog! Good Luck and keep us posted!!!