STEVE INSKEEP, HOST:
Good morning. I'm Steve Inskeep. The world champions of power naps are penguins.
(SOUNDBITE OF PENGUINS VOCALIZING)
INSKEEP: A study reveals chinstrap penguins fall asleep thousands of times per day for a few seconds each. A French neuroscientist speculates their sleep patterns are due to their noisy environments. They need to be alert for predators that may attack their nests. Maybe we should try a five-second power nap during the - that was it right there. It's MORNING EDITION. Transcript provided by NPR, Copyright NPR.