It feels great when you take a nap after a long busy day, doesn’t it? Nevertheless, sometimes we might be wondering why we still feel tired, or even more tired than before the nap. The simple rule is this: A nap longer than half an hour is not a nap, but it is considered a deep sleep. That is the main reason why we feel exhausted after taking a nap which is longer than it should be, and still not enough to be a real sleep. After that 30 minutes it is very difficult for the body to recover from that sleep.
Health Benefits of Napping