According to the folks at NASA, there is an exact amount of time that is perfect for a nap:
26 Minutes.
During research, NASA found that the 26 minute nap can boost alertness by a whopping 54% and improve performance by 34%. The reason it works so well comes down to how sleep is structured. At around the 26-minute mark, your body stays in the lighter stages of sleep, just enough to recharge your mental batteries without dragging you into the deep, heavy sleep.
Also, this wasn’t just a random idea for research, NASA originally dug into nap science to help pilots and astronauts stay sharp in high-stakes situations where zoning out is NOT an option.
So, next time you’re feeling a big sluggish and you think that you could use a bit of a refresh, set your alarm for that 26 minute nap and hopefully you wake up feeling well rested and not groggy and wondering what year it is.
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