In 1968 columnist Rex Reed published Do You Sleep in the Nude? The title was from a question Reed asked Ava Gardner in an interview for Esquire. New York Magazine then asked Jenny O’Hara, Shelley Plimpton, Gayle Hunnicutt, Ali MacGraw, Jane Merrow and Lau
According to a 2004 United States survey, 55% of women wear pajamas or nightgowns for sleeping, whereas 2% wear underwear and another 14% sleep nude. [https://en.wikipedia.org/wiki/Nightwear ]