Music like Sleepy Kitty

"Soft Kitty" is a children's song, popularized by the characters Sheldon and Penny in the American sitcom The Big Bang Theory, and which elsewhere may be rendered as "Warm Kitty". A 2015 copyright lawsuit alleged the words to "Warm Kitty" were written by Edith Newlin; however, the lawsuit was dismissed because the court found that the plaintiffs failed to show they had a valid claim.

In The Big Bang Theory, the song is described by Sheldon as a song sung by his mother when he is ill. The lyrics on The Big Bang Theory are: "Soft kitty, warm kitty, little ball of fur! Happy kitty, sleepy kitty, purr purr purr!" A scene in an episode of Young Sheldon, the prequel series to The Big Bang Theory, depicts the origin of the song. This aired on February 1, 2018, and shows Sheldon's mother Mary singing the song to her son, who is suffering with the flu.