Since my baby was born, he has slept in his rocker/glider. It’s a rocker that can sit on a base and it moves back and forth and plays music. This is the only thing that he has slept in and was the only thing that he could sleep in. Well for the third night in a row now, anytime I put him down in it for bed, he just starts screaming bloody murder and will not settle down. He has always either fallen asleep in it, or fallen asleep in my arms then gone down in it no problem. Any idea as to why all of a sudden he won’t sleep in it? He will be 8 weeks old on Saturday.