Midafternoon snoozes are a common occurrence for many people, especially during the summer months when the sun is at its highest. NAPS and SIESTAS are two words that can be used to describe these midday snoozes. NAPS are short periods of sleep, usually lasting no more than 30 minutes, while SIESTAS are longer NAPS that can last up to several hours. Both terms are used to refer to the same activity, but the length of time spent sleeping varies.