Previous research has shown us that the lunar cycle does not contribute to erratic human behavior, including transforming people into wolves, or causing inexplicable chest pains. But that doesn’t mean the moon has no effect at all.

As part of a routine study, scientists analyzed aspects of test participants’ sleep patterns – time it took to fall asleep, length of full night’s sleep, etc. Five years later they decided to revisit the data and analyze it in a new context: the lunar cycle.

The findings were surprising. During the full moon, test subjects took 5 minutes longer to fall asleep, slept for 20 minutes less per night and suffered a 30% decrease in deep sleep.

Carl Sandburg said:

The moon is a friend for the lonesome to talk to.

Perhaps he meant insomniacs.