Summary: Grounding—also called earthing—is the practice of physically connecting the body to the Earth’s surface. It has re-emerged as a wellness trend and now includes products such as grounding mats and sheets intended to simulate direct contact with the ground. Advocates report benefits for sleep, mood, inflammation and recovery after exercise, but rigorous scientific evidence remains limited and mixed.
A controlled 2025 trial reported that people using grounding mats slept longer on average than those using visually identical placebo mats, though other sleep measures showed no clear differences. Small studies have suggested potential reductions in pain and inflammation and improved sleep in some groups, yet the overall picture of grounding’s effects is still uncertain.
Key facts:
- Emerging evidence: Some studies report modest improvements in sleep duration and markers of inflammation.
- No harm reported: Published trials have not found evidence that grounding mats cause negative effects.
- Low-cost alternative: Direct outdoor grounding (barefoot on grass or sand) is free and may also expose you to natural light that supports circadian rhythms.
Source: The Conversation
Have you ever felt unexpectedly calm after walking barefoot on grass, or noticed stress lift when standing in the surf?
If so, you may have experienced grounding without realizing it.
Grounding, commonly called earthing, refers to making direct physical contact with the Earth’s surface. Traditionally this meant walking barefoot on soil, sand or grass. More recently, a market for at-home grounding products—mats, mattress pads, and sheets—has developed to give people a way to simulate that contact indoors.
Before indoor living, footwear and paved surfaces became widespread, people spent far more time in direct contact with the ground. With modern lifestyles, that contact has declined, and some proponents argue that re-establishing a conductive connection to the Earth may yield physiological and psychological benefits.
Claims include better sleep, reduced stress and pain, and faster recovery after exercise. While a number of small studies have reported positive effects on pain, inflammation and subjective sleep measures, the body of evidence is limited, and results are not consistently replicated.
Ironically, today’s grounding movement often depends on technology more than time outdoors. Grounding products aim to bring the electrical connection of the Earth into people’s homes, and these devices are frequently promoted on social media as solutions for sleep and wellbeing.
Bringing the outdoors in
The human body conducts electricity and can exchange charge with the Earth or with man-made objects. Grounding devices—such as under-desk foot mats, mattress covers and special bed sheets—are designed to create a conductive path between your body and the Earth’s electrical potential. In practice, many of these products use the ground/earth terminal of a household electrical outlet to complete that connection.
Advocates believe that reconnecting the body to the Earth’s surface charge produces beneficial changes in physiology and mood. Although the mechanism is plausible in principle, current scientific support is preliminary and requires larger, well-controlled studies to draw firm conclusions.
Could grounding improve your sleep?
Research into grounding and sleep is growing but still limited. A double-blind randomized study from 2025 enrolled 60 participants and assigned half to use grounding mats and half to use identical-looking non-grounding mats. Participants were instructed to sit or lie on the mats for about six hours daily and wore sleep trackers during the one-month trial.
After 31 days, trackers showed the grounding group slept slightly longer on average than the control group. Both groups also reported improvements on questionnaires measuring insomnia, sleep quality, daytime sleepiness and stress, and there were no clear differences between groups for most of those subjective measures. One sleep-related questionnaire did show lower insomnia severity in the grounding group, but that group already scored better at baseline, which makes it hard to attribute the change solely to grounding.
A separate double-blind trial involving people with Alzheimer’s disease found that using a grounding mat for 30 minutes, five times a week, was associated with improved sleep quality. However, measures of anxiety and depression showed no change in that study. Overall, evidence suggests grounding may help some individuals with sleep, but stronger and larger trials are needed to confirm effects and mechanisms.
Grounding for gains?
Some research has examined grounding after exercise. A 2019 trial reported that participants who slept on a grounding mat following intense workouts experienced less muscle soreness and had lower blood markers of inflammation compared with participants who were ungrounded. This suggests grounding could aid short-term recovery, but whether it meaningfully affects long-term training adaptations or athletic performance is not established.
Add to cart?
Should you buy a grounding mat? At present, the safest, most honest answer is that we don’t know for certain. Existing studies have not reported harms from grounding products, so trying one is unlikely to be risky. Many people report subjective benefits and enjoy using these products, and they typically cost anywhere from modest amounts to several hundred dollars depending on brand and features.
If you prefer a no-cost option, spending time barefoot outdoors remains an easy way to reconnect with the Earth. Even when grounding itself is not proven, outdoor exposure brings natural daylight that supports circadian rhythms and can improve mood and sleep.
If you have persistent sleep problems or suspect a sleep disorder, grounding should not replace medical advice. Consult your GP or a sleep specialist to explore established diagnosis and treatment options.
About this sleep and grounding research news
Author: Dean J. Miller and Charlotte Gupta
Source: The Conversation
Contact: Dean J. Miller and Charlotte Gupta – The Conversation
Image: The image is credited to Neuroscience News