When I started, I had one by herself for almost a month before the other 5 started. Then they all came the same week. It was chaotic! I wasn't new to looking after kids, but new to running the show myself. And I did things that I quickly realised were not working. Like letting them play in the sleep room during the morning. I soon put a stop to that because then would play in there instead of napping too. Live and learn. Now I like to stagger start days. Our routine is well established, (10 years in) but I am finding more of the kids have a longer transition period so it helps to space them out.