“Soft Kitty, Warm Kitty” is a Song from the ’30s
The song “Soft Kitty, Warm Kitty” has become synonymous with “The Big Bang Theory.” However, the song has origins that date back to the 1930s when it was written by Edith Newlin. The song later became popularized on a TV series in Australia. It was brought to the attention of the show’s co-creator Bill Prady, whose daughter had heard it from her preschool teacher.