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.
Time it right. Studies have tested a wide range of nap times, but for most individuals, it seems between 10 and 20 minutes of sleep is best. Longer naps can cause sleep inertia, or a period of grogginess and reduced performance caused by waking in the middle of deep sleep. 7. Get a wake-up call.