Noonday naps, also known as siestas, are a common practice in many countries around the world. They involve taking a short NAP during the day, usually in the afternoon, to help restore energy and alertness. The term 'noonday NAP' is derived from the Spanish word 'SIESTA, ' which means 'NAP.' Siestas are typically taken during the hottest part of the day, when temperatures are highest and people need a break from the heat.