Okay, lately, I observed that I get this unfriendly headache after taking my naps, which is very unusual, because naps are meant to refresh the body. So I started reading to find out what could possibly cause the headaches. Here are some tips for a healthy nap:
Nap Time should be less than 30 minutes. 20- 30 minutes of nap is good health.
Most appropriate time for nap is between 2-3pm. Drowsiness caused after lunch could reduce productivity, so this is the most appropriate time for nap.
The environment should be quiet and sufficiently dark environment.
Repeat napping every day at the same time for the same amount. Give this a try, it will really help.