The History of Grounding: How Cultures Slept Connected to the Earth

People have walked barefoot on dirt, sand and grass for as long as there have been people. The idea that doing this on purpose is good for you, and the entire industry built around recreating it indoors with conductive bedding, is much newer, really only a few decades old.

Did ancient cultures actually practice grounding?

Not in the way today’s marketing sometimes implies. Humans spent most of history barefoot or in thin-soled footwear, in regular contact with soil, without a name for it or a theory of electrons involved. Several traditional systems, including strands of traditional Chinese medicine and various Indigenous practices around the world, describe a connection between the body and the earth in energetic or spiritual language.

That’s a real cultural thread, and it’s worth respecting on its own terms. But it isn’t the same claim modern earthing brands make. The electrical version of the story, skin contact conducting the earth’s surface charge into the body, is a 21st-century idea layered on top of a much older behavior. Conflating the two overstates how old the actual theory is.

Who started the modern grounding sheet industry?

The commonly told origin story centers on a retired cable-TV installer in the late 1990s. His background was in grounding cable systems to prevent static and interference, and he began wondering whether a similar principle might apply to the human body during sleep. That question is what led to the first conductive bedding prototypes and, eventually, funding for early pilot research.

I’ll say the honest part here too: the person who popularized the idea also had a commercial interest in the products that came out of it. That doesn’t make the underlying electrical question invalid, the outlet-ground connection is real and measurable, but it’s a detail worth knowing when you read the history. We cover exactly what that connection is and isn’t in What Is Earthing? The Practice Behind Grounding, Explained.

When did the research start, and how much is there?

The research base is young relative to how the products are sometimes marketed. The most frequently cited paper, Ghaly and Teplitz’s 2004 study on sleep and cortisol, is a small, unblinded pilot, not a landmark trial. Sokal and Sokal’s 2011 work and Chevalier’s 2013 blood-viscosity study followed a similar pattern: small samples, interesting early signals, limited independent replication.

By 2015, Oschman, Chevalier and Brown had published a narrative review proposing a mechanism, that the earth’s surface electrons might act as antioxidants, but a proposed mechanism isn’t proof. The honest read is that grounding research has existed for roughly two decades, produced mostly by a small overlapping group of researchers, several with ties to the products being studied.

How has the product itself changed since the early days?

Early grounding sheets leaned on silver-coated fibers, which conduct well but tarnish and lose conductivity with washing and oxidation over time. That’s a materials-science problem, not a marketing one, and it’s part of why later sheets moved toward stainless-steel fiber blends, which resist oxidation and tend to hold conductivity across more wash cycles. We break down that materials shift in detail in What Are Grounding Sheets Made Of? Silver vs Stainless Steel Fibers.

Beyond the fabric, the product category has widened a lot since the original mat-and-sheet era: blankets, pillowcases, mattress pads, socks, even grounded shoes now exist. The underlying claim behind all of them is the same one from the 1990s. What’s actually improved is manufacturing quality and the fairness of how brands talk about the evidence, not the strength of the science itself.

What should you take from the history?

Two separate things got merged into one story: a genuinely old human behavior (bare skin on bare ground) and a genuinely young commercial and research movement (grounding sheets, roughly 25 years old). Neither fact should be used to oversell the other. The behavior being ancient doesn’t prove the modern electrical mechanism works, and the mechanism being plausible doesn’t mean it’s been proven at scale.

If you’re deciding whether any of this is worth trying, the fair verdict hasn’t changed much since the early 2000s: promising for sleep and relaxation in small studies, under-proven for everything else, and low-risk if you want to test it yourself. For the fuller picture of what these sheets are and how the mesh and outlet connection actually functions, see our guide What Are Grounding Sheets? How Earthing Bedding Actually Works.

Frequently asked questions

Nora WhitfieldSleep-environment writer. She has tested grounding sheets, mats and blankets hands-on since 2021 and reads the actual studies so you do not have to.