Pick your battles with our grandson, we started out when he was younger with playing the same something over and over again, we did rotate occasionally. The idea was the comfort and familiarity of the item would help calm, and the repetitiveness would bore. Like anything, it didn't work all the time. Now that he is 7, it's much easier; however, we don't have him as much and we are not dealing with a child on the spectrum.

When I worked in the group homes, with one child that had trouble with going to bed, the rule was just that he had to be in his room and quiet. This also did not work all the time and often we'd have to sit at his door so he could see we were there.