The (not-so) subtle impact of the moon and other celestial events on sleep

We often blame sleepless nights on too much coffee or one too many late-night Netflix episodes, but sometimes, the real culprit might be hanging right above us. The moon, eclipses, and even Mercury retrograde could be pulling the strings on our shut-eye. Let’s explore why.

The moon and sleep

Recent research suggests there is a lunar influence on sleep, especially during the moon’s waxing phase. A large study from Uppsala University, involving 852 participants, found that men experienced lower sleep efficiency and stayed awake longer after falling asleep in the nights leading up to a full moon, while women’s sleep was far less affected.

Going back a bit, a 2013 study in Current Biology also found that during brighter moon phases, participants had lower melatonin levels and 30% less REM sleep. Some scientists suspect the moon’s brightness is to blame, while others wonder if its gravitational pull (strong enough to move oceans) could also subtly affect the water in our brains. Either way, if you feel extra restless during a full moon, you’re not imagining it.

What about other cosmic events?

Full lunar eclipses can light up the night sky and disrupt melatonin production much like a full moon. And then there’s Mercury retrograde. Google searches for “Does Mercury retrograde affect sleep?” have spiked 600%, and it’s not all clickbait. The period’s reputation for communication mishaps, tech glitches, and travel delays can fuel enough stress to keep anyone staring at the ceiling.

Whether the effects are biological, psychological, or both, our cosmic neighbors may have more sway over our sleep than we think. So next time you can’t drift off, check the lunar calendar, or just blame Mercury.