A 90-minute nap is optimal According to the physiology of sleep, sleep research scholars suggest that a 90-minute nap is comparable in effect to a night of adequate sleep. Therefore, if you have enough time for a lunch break, you should scramble to catch a nap. Human sleep goes through five stages: drowsiness (stage one); light sleep (stage two); deep sleep (stage three), slow wave sleep (stage four); rapid eye movement sleep (stage five). In a 90-minute nap, you can go through all the stages of sleep. A well-timed nap enhances concentration, deepens memory, improves cardiovascular fitness, relieves depression as well as boosts metabolism. Fujian Provincial Organs Hospital Neurology Ji Xiaolin More fatigue after a nap is recommended to sleep for 10 to 15 minutes Many people often have this confusion: why do I instead more tired after a nap? For more fatigue after the nap crowd, experts suggest that you can shorten the nap time, so that your nap did not enter the short-wave sleep stage, because people in the short-wave sleep stage is relatively difficult to wake up. These people’s nap time control in 10 to 15 minutes can be, the length of this nap time allows people to experience the second stage of sleep, and this stage of memory and health have an important role. You should lie down and rest even if you’re not tired Sometimes it can feel difficult to sleep in the middle of the day, especially if you’ve squeezed a nap out of your tight schedule. When faced with this situation, you should never get up and continue working without feeling tired or unable to sleep, but you should lie down flat and rest, because lying down and resting can be very different from not resting. Experts suggest that even if we don’t fall asleep and only lie down to rest for 20 minutes, it will be as if we had a nap. Even if you don’t notice it easily, your body’s mental and physical energy can be better restored by just lying down and resting for a while. Try to nap 6 hours after waking up Try to nap 6 hours after waking up in the morning, when your body is in the midst of its physiological drive to drop and go into the time when it wants to sleep the most. At this time, the body’s core temperature and rate of cognitive processing drops, the body grows tired, and the person is gradually overtaken by sleepiness. This is the best time to take a nap. Experts also suggest that attention needs to be paid to the fact that naps need to be coordinated with schedules. It is recommended to ensure at least three naps per week and 20 minutes per nap, which is very beneficial to one’s health and cognitive function.