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 ]
On average, Americans _claim_ to spend 19.7 minutes on foreplay prior to sex. Worldwide, the UK tops the list with 22.5 minutes. [2004 Durex Global Sex Survey]