(FOX 5 DC) - The 'perfect nap' does exist but it's less than an hour, according to NASA's research.
When the midday slump begins to kick in, it might be time for a power nap. But for how long?
NASA says the perfect nap can be found between the 10 to 20 minute range.
According to their research, 10 to 20 minutes of rest gives your body the most benefits of a sleep cycle without the grogginess that comes with longer sleep.