Grounding Flat Sheet - Organic Cotton with Silver Threads (Jordingslaken)
Reconnect with the earth's natural electrical field while you sleep. Organic cotton woven with pure silver threads, grounded to your home's earth pin.
Jordingslaken i organisk bomull med solvtrad - jording (earthing) mens du sover
The simple problem grounding solves
Throughout human history, people slept on the ground and walked barefoot. The earth carries a natural negative electrical charge - a constant supply of free electrons that the human body can absorb through direct contact. That contact was uninterrupted for most of our evolutionary history.
Modern life ended it. Rubber-soled shoes, elevated beds, insulated floors and - especially in Norway - well-sealed, highly insulated buildings that almost completely isolate us from the earth's electrical field. Norwegians can go entire seasons without meaningful skin-to-earth contact.
Grounding bedding (jordingslaken) restores that contact. The silver threads conduct electrons from the earth through your home's grounding system to your skin while you sleep. The same biology that operated for thousands of years - just adapted for modern Norwegian housing.
How it works
1. The earth's charge
The earth maintains a stable negative electrical charge with a constant supply of free electrons. Bare skin contact with the earth - or a conductive connection to it - allows these electrons to flow into the body.
2. Silver threads in organic cotton
Pure silver is highly conductive and naturally antimicrobial. Woven throughout the organic cotton, it creates a conductive surface that transfers electron flow when skin makes contact.
3. Connected to your home's ground
A 4.5m cord connects the sheet to the ground pin of a standard Norwegian Schuko outlet. Only the ground pin - no electrical current flows. The connection is to earth potential only.
4. Electrons reach your body
When bare skin touches the sheet, electrons flow in. Research shows this reduces free radicals involved in inflammation, normalises cortisol rhythms and improves sleep quality.
Research-backed benefits of grounding (jording)
Sleep quality
Studies show grounding normalises cortisol rhythms and improves sleep onset, depth and morning recovery. Particularly useful combined with circadian light management.
Inflammation reduction
Decreased inflammatory markers and reduced chronic pain documented across multiple studies. Free electrons act as antioxidants, neutralising reactive oxygen species involved in chronic inflammation.
Stress and cortisol
Grounding has been shown to normalise cortisol's diurnal rhythm - lower at night, appropriate levels in the morning. Reduced subjective stress and improved emotional regulation reported consistently.
Circulation
Improved blood viscosity and flow documented through thermography. Lower blood viscosity means easier circulation and reduced cardiovascular strain during sleep.
Pain relief
Reduced muscle soreness, joint pain and general discomfort - particularly beneficial for chronic pain conditions and post-exercise recovery.
Energy and recovery
Improved daytime energy, reduced fatigue and better next-day mental clarity. Effects build over consistent nightly use rather than appearing all at once.
The science - what the research actually says
Over 20 peer-reviewed studies have examined grounding's biological effects. Research published in the Journal of Inflammation Research documented significant reductions in inflammatory markers in grounded subjects. Studies in the Journal of Alternative and Complementary Medicine showed normalised cortisol rhythms and improved sleep quality. Blood viscosity improvements have been documented through live blood analysis.
The mechanism is well understood: free electrons from the earth neutralise positively charged free radicals involved in chronic inflammation. This is the same principle as antioxidants - electrons donated to unstable molecules that would otherwise damage tissue.
The research is promising and the mechanism is plausible. Individual responses vary. Not a medical device.
Why grounding matters more in Norway
Six months indoors
Norwegian winters mean months of minimal outdoor time and near-zero barefoot earth contact. The insulation that keeps Norwegian homes warm also completely isolates occupants from the earth's electrical field. Grounding bedding is the most practical solution to year-round earth connection for Norwegian conditions.
Well-insulated buildings
Norwegian building standards produce some of the best-insulated homes in Europe - which also means complete electrical isolation from the earth. Grounding via your home's ground pin bypasses this insulation and restores the connection that the building's construction removed.
Circadian support
Combined with sirkadisk belysning and blålysbriller, grounding addresses a different but complementary aspect of sleep biology. Light protects the melatonin signal; grounding normalises the cortisol rhythm and reduces the inflammation that disrupts deep sleep.
Organic cotton with pure silver threads
- 100% certified organic cotton - no pesticides, chemicals or synthetic materials against your skin
- Pure silver threading throughout - high conductivity for effective electron transfer across the full sheet surface
- Naturally antimicrobial - silver inhibits bacterial growth, keeping the sheet fresher between washes
- Breathable and temperature-regulating - organic cotton's natural properties for year-round comfort in Norwegian bedroom temperatures
- Machine washable - with mild, bleach-free detergent at max 40 degrees C
- 92 x 232cm - generous sizing for tucking, draping or full upper-body coverage
Setup - five minutes, works every night after that
- Place the sheet on your mattress or over your existing bedding
- Connect the snap to the conductive tab on the sheet edge
- Plug the cord into a grounded Norwegian Schuko outlet - ground pin only, no current flows
- Test the ground (optional) - a socket tester from a Norwegian hardware store confirms the outlet is grounded
- Sleep with bare skin contact - any contact point works. Feet, arms, legs. You do not need to sleep uncovered.
Norwegian-specific notes
- Standard Norwegian Schuko sockets are grounded - the system works directly
- The cord connects only to the ground pin. No electrical current. Impossible to receive a shock from a correctly connected grounding sheet
- If your outlet is not grounded (older buildings), a grounding rod driven into garden soil is an alternative
- Disconnect cord before washing
Care instructions
- Wash every 1-2 weeks in warm water, max 40 degrees C
- Mild, natural detergent only - no bleach, no fabric softener, no whitening agents (these degrade the silver threads)
- Line dry or tumble dry on low heat - high heat damages silver threads
- No ironing required - wrinkles do not affect conductivity
- Do not dry clean - chemicals damage the silver
- Silver threads will gradually wear over years of washing. Conductivity remains effective with proper care for 2-5 years
What's included
From Dominic
I came to grounding through the same route most people do - sleep and inflammation. I was already working with circadian light for sleep improvement and kept running into the same finding: grounding kept appearing in the research as a significant contributor to sleep quality and cortisol normalisation, independent of light. The mechanism made sense. The research was solid enough. I added it to what I stock.
For Norwegian conditions specifically, I think it matters more than in most places. We are well insulated from the weather, which means we are also well insulated from the earth. Months can go by without meaningful barefoot earth contact. The grounding sheet is the practical answer to that - you set it up once and it works every night without thinking about it.
The approach I recommend to customers who want the full picture: blålysbriller in the evening to protect melatonin, sirkadisk belysning to manage room light, and grounding bedding to address what neither of those touches - inflammation and cortisol balance during sleep itself.
📧 admin@lighttherapy.no · 📞 +47 951 47 478 (Text only)
Complete the sleep and recovery protocol
- Grounding and PEMF collection: All jording and PEMF products - fitted sheets, pillowcases and PEMF devices for full-body grounding coverage
- Evening light: AfterDark blålysbriller - grounding handles inflammation and cortisol; blue light glasses handle the melatonin signal. Together they address sleep from two different biological angles.
- Room lighting: Sirkadisk belysning - amber and red evening bulbs that stop artificial light suppressing melatonin before the grounding sheet takes over
- Red light therapy: Rødlysterapi paneler - photobiomodulation for daytime recovery and inflammation reduction to complement nightly grounding
Frequently asked questions
What is a grounding sheet (jordingslaken) and how does it work?
A jordingslaken is bedding woven with conductive silver threads connected via a cord to your home's ground pin. When bare skin touches the sheet, electrons from the earth flow into the body. This restores the contact with the earth's electrical field that humans had throughout history. Research shows it reduces inflammation markers, improves sleep and normalises cortisol rhythms.
Does grounding (jording) work in Norwegian apartments?
Yes. Norwegian electrical systems use properly grounded Schuko outlets. The cord connects only to the ground pin - no electrical current flows. Standard Norwegian sockets work directly with the included cord. A socket tester from any Norwegian hardware store will confirm your outlet is grounded.
Is it safe?
Yes. The grounding cord connects only to the earth pin of the outlet. It carries no electrical current - it is a passive connection to earth potential. It is not possible to receive an electric shock from a correctly connected grounding sheet. People with implanted electrical devices such as pacemakers should consult their doctor before use.
How long until I feel results?
Many people notice improved sleep within 1-3 nights. Inflammation reduction and pain relief typically take 1-2 weeks of consistent nightly use. Results vary - some people notice significant changes quickly, others more gradually over two to four weeks.
How much skin contact do I need?
Any bare skin contact is sufficient. Feet, legs, arms or back touching the sheet allows electrons to flow. You do not need to sleep uncovered or change how you normally sleep.
Can I use regular sheets on top?
For full benefit, bare skin should contact the grounding sheet directly. Very thin cotton fabrics may allow limited conductivity, but direct contact produces the strongest effect. Use the grounding sheet as your primary contact point.
Hva er jording og hva gjor et jordingslaken?
Jording (earthing) er den fysiske forbindelsen mellom kroppen og jordens elektriske felt. Et jordingslaken er sengetoy vevd med ledende solvtrad koblet til jordingstappen i en stikkontakt. Nar bar hud berorer lakenet, strommes elektroner fra jorden inn i kroppen. Forskning viser at dette reduserer betennelsesmarkorer, forbedrer soven og normaliserer kortisolnivater.
Virker jording i norske leiligheter?
Ja. Norske elektriske anlegg bruker jordede Schuko-stikkontakter. Jordingsledningen kobles kun til jordingstappen og forer ingen elektrisk strom. Standard norske stikkontakter fungerer direkte med den medfolgede ledningen. En stikkontakttester fra jernvarehandelen bekrefter at stikkontakten er jordet.
Important safety information
- Do not use if you have an implanted electrical device (pacemaker, insulin pump) without consulting your doctor first
- Do not use near water or in wet conditions
- Ensure your outlet is properly grounded before use
- Disconnect cord before washing
- Disconnect during thunderstorms as a precaution
- Not a medical device - not intended to diagnose, treat, cure or prevent any disease
Ships from Drammen - no import fees
30 dagers åpent kjøp
Full refund within 30 days.