Science has confirmed what you’ve long suspected: naps are awesome. A new collection of scientific data on naps show that sleeping during the day—even if only for a few minutes—can give you renewed energy, make you more alert, and improve cognitive functions like memory and creativity. One of the recommendations of the research is to plan your naps so that they are within an optimal sleep cycle: Napping for less than 20 minutes will give you a quick boost and prevent grogginess. But, if you plan on napping for more than a half hour, it’s best to sleep for a full 90 minutes, or you can be subjected to a dreaded “sleep hangover.” So what are you waiting for? A 20-minute nap awaits. Once again, science has proven its usefulness …
