What Studies Say
Some studies have looked at links between geomagnetic activity and sleep quality or melatonin. Results are mixed: some report weak associations; others find no effect. Effects, when reported, are small and not consistently reproduced. Direct biophysical mechanisms (e.g. how the small changes in Earth's magnetic field during a storm would be detected by the body) are not established.
Practical Takeaway
Sleep is influenced by many factors—light, stress, diet, and routine. If you sleep worse on days with high Kp, you can note it for yourself, but causation should not be assumed. Sleep hygiene and regular rhythm remain the main levers. Cosmic Radar shows the daily Kp index so you can observe any pattern yourself—without attributing sleep changes solely to geomagnetic storms.
Sources and further reading
- NOAA Space Weather – Kp index and geomagnetic activity
- WHO – Electromagnetic fields – EMF and health (general)