Kittens do not stay still for the most part. They are little bundles of energy. Most do outgrow the 'crazies' and settle down as they get older. Some cats don't. I have 4 cats. 3 of them would make nice sleep companions if they could all stand to be in the same room together without fights. I end up sleeping with 1 consistently, and lock the others out. However, Sasha, my youngest, he's about 14 months old, I can't even think to sleep with. He still can't lay still for very long.