New Zealand, Norfolk Island, and OuvÃ©a, the Polynesian outlier near New Caledonia, are the unsubmerged portions of the largely sunken continent of Zealandia.
The 20-minute power nap -- sometimes called the stage 2 nap -- is good for alertness and motor learning skills like typing and playing the piano. What happens if you nap for more than 20 minutes? Research shows longer naps help boost memory and enhance creativity.
Researchers have found that a long nap -- of two hours or more -- can significantly improve alertness for up to 24 hours. Moreover, a preparatory nap counteracts the effects of sleep deprivation better than a nap taken after the missed sleep. 4. Put safety first.