I also started with 3 11 month olds. They are all in pack and plays in the living room. After the first few days you will figure out who falls asleep first etc. I have one little one who does not self- soothe at home so he took the most work to get into a routine. After discussing this with his Mom, she was happy for me to let him cry it out for as long as it took! I used to put him to bed 30 minutes before the others. Now everyone goes at the same time and they all realize that I am not coming to get anyone until nap time is over so they sleep or rest quietly!