BENEFITS OF A POWER NAP
First let’s get a handle on what a ‘power nap’ is and then how best to pull it off. Regarding duration time, many sleep experts advise to keep the nap between 15 and 30 minutes.
Sleep comes in five stages. If your nap takes you from stage 1 sleep (just drifting off) to stage 2 (brain activity slows), you will wake up feeling energized and more alert. If your nap takes you into stages 3 and 4 (deep sleep), you will not wake easily and will feel groggy and tired. Sleep stage 1 typically lasts about 10 minutes and stage 2 lasts another 10 minutes. That makes the 20-minute nap ideal for most people. Speaking from my two decades of personal slumbering experience, I find between 20 and 30 minutes is ideal.