The Thread and the Kitten (1974)

Late at night, when all household members had gone to bed, a kitten woke up and felt that it overcohasmes insomnia. How to have fun? The playful kid went to investigate. It turned out that coiled balls of yarn did not sleep too, and there was a sky-blue thread, cheerful and kind, which, like the kitten, wanted to play. Will they make friends with the kitten?