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.

NPR transcripts are created on a rush deadline by an NPR contractor. This text may not be in its final form and may be updated or revised in the future. Accuracy and availability may vary. The authoritative record of NPR’s programming is the audio record.