You may be familiar with that feeling of overwhelming sleepiness during the mid-afternoon. It’s common, occurs whether you’ve eaten lunch or not, and is caused by a natural dip in alertness from about 1 to 3pm. So, if you find yourself fighting off sleep in the middle of the day and you’re somewhere where you can have a nap, then do it.
Taking the time for a brief nap will relieve the sleepiness almost immediately and improve alertness for several hours after waking. And there are many other benefits too.
Understanding why we nap
People nap for lots of reasons, some which are:
to catch up on lost sleep
in anticipation of sleep loss to avoid feeling sleepy later on
for enjoyment, boredom or to pass time.