Terraliving
Earthsheet

The product

100% organic cotton with a 7% silver-fibre conductive grid. Comes with a 3-prong AU-spec grounding cord featuring a 98 kΩ safety resistor for safe, low-current electron exchange.

How it works

Plug the cord into a properly earthed wall outlet. Lie down on the sheet; bare skin contact with the conductive grid transfers earth electrons to the body during sleep. The 98 kΩ safety resistor keeps current at a fraction of a microampere — measurable with a standard multimeter, well below any sensation threshold.

What the evidence actually says

Small studies report measurable changes when subjects sleep grounded versus ungrounded:

  • Chevalier & Sinatra (2011) — improved heart-rate variability and autonomic tone in 27 subjects exposed to short grounding sessions.1
  • Ghaly & Teplitz (2004) — 12 subjects sleeping grounded for 8 weeks showed normalised circadian cortisol rhythm and lower night-time cortisol versus their own baseline.2
  • Sokal & Sokal (2011) — series of small experiments documenting changes in blood chemistry, EEG, and somatosensory evoked potentials with continuous overnight grounding.3
  • Chevalier, Sinatra, Oschman, Sokal & Sokal (2012) — narrative review of the mechanism and accumulated small-trial data.4

The studies are small, often run by groups financially adjacent to grounding products, and the field has not yet produced a large independent trial.

What we can say with confidence: the mechanism is real and instrumentable. Bare skin to a properly earthed conductor transfers electrons; you can prove this with a voltmeter. What we cannot yet say with confidence: the magnitude of the physiological effect across a general population. We’re watching it. Reported subjective effects vary. Not a medical device and not assessed by the TGA.

Sources

Footnotes

  1. Chevalier, G., & Sinatra, S. T. (2011). Emotional stress, heart rate variability, grounding, and improved autonomic tone: clinical applications. Integrative Medicine: A Clinician’s Journal, 10(3), 16–21. ↩

  2. Ghaly, M., & Teplitz, D. (2004). The biologic effects of grounding the human body during sleep as measured by cortisol levels and subjective reporting of sleep, pain, and stress. Journal of Alternative and Complementary Medicine, 10(5), 767–776. doi:10.1089/acm.2004.10.767 ↩

  3. Sokal, K., & Sokal, P. (2011). Earthing the human body influences physiologic processes. Journal of Alternative and Complementary Medicine, 17(4), 301–308. doi:10.1089/acm.2010.0687 ↩

  4. Chevalier, G., Sinatra, S. T., Oschman, J. L., Sokal, K., & Sokal, P. (2012). Earthing: health implications of reconnecting the human body to Earth’s surface electrons. Journal of Environmental and Public Health, 2012, 291541. doi:10.1155/2012/291541 ↩