My cat has a security blanket, really its a long piece of loopy yarn. when she is stressed she drags this through the house and cries. At night when I go to bed and turn out the lights. she goes and get this blanket and cries I talk to her and finally she will bring it to bed and I tell her to go to sleep and she curls up with her blanket. We go through this every night! Some nights it takes longer to calm her down than other nights. How can I help her not stress every night