I have tried different approaches to help new ones to sleep. The one I used with these 3 little ones (suggested by Momof4) was that I stayed with them the whole nap time during the first days and help them back to their playpen when they wanted out or gently shush them if they were making noises. That worked very good for this crew... If you are using the cry it out way let them cry, don't go pat them or speak to them until nap time is over... I never have had the non-stop crying during nap time with dck, but I had it with my son when he was a baby. There was a time I used the cry it out way with him and just waited until he fell sleep while watching him in the video monitor. He is a good napper now (2yo) after a very rough sleeping time.