“The ability of the moon to influence our behaviour is undoubtedly an idea with broad appeal. Beyond folk tales and anecdotal evidence, the theory has been the subject of hundreds of studies. Just this summer there was new research which found that people spending the night in a sleep laboratory rated their sleep quality as 15 per cent lower when there was a full moon, even though they couldn’t see it or any extra light it produced, and they took on average five minutes longer to get to sleep” — http://www.bbc.com/future/story/20131029-does-a-full-moon-make-people-mad