Who doesn't love hearing the characters of The Big Bang Theory sing "Soft Kitty, Warm Kitty, Little Ball of Fur. Happy Kitty, Sleepy Kitty, Purr Purr Purr." Who loved the Episode of Young Sheldon when we got to hear Marry Cooper sing it the first time? Whether you are feeling sick and need something to help you feel better or whether you just want something comfortable to wear to watch the comedy of Penny, Bernadette, Howard Walowitz, Leonard Hofstadter, Amy Fowler, Raj, Stuart, and of course Sheldon Cooper, these are the pajama pants to show you are both smart and a fan! These pajama pants feature Soft Kitty Warm Kitty with the word "Purr" three times around the from the show. The pants themselves are made of a soft 60% cotton and 40% polyester fabric blend, for casual wear and lounging about!