Unipolar magnetic sleep systems
The planet gives you half a gauss. EarthField gives you sixty, in a pure, one-directional field certified at your sleeping height. Like sauna for heat and cold plunge for cold, it takes something nature already does and concentrates it, for eight hours every night.
Gauss-certifiedMeasured at sleeping height
Pure Bio-North fieldOne pole, one direction
Zero steelNothing distorts the field
Designed by Truth CalkinsBiomagnetics educator
What's under the mattress
0.5 → 60 G
The Earth's field today → EarthField 60, at your sleeping height
Beneath an ordinary-looking bed, a hand-built array turns every magnet the same way, so you sleep inside one smooth field at up to 120 times the Earth's.
What a nightly field supports*
Your body does its repair work while you sleep. EarthField gives that work the magnetic environment it evolved in, at many times the strength the planet now provides.
Fall asleep sooner and spend more of the night in deep, restorative sleep.
Supports cellular energy production, so you wake clear-headed instead of groggy.
Supports the overnight recovery that hard training and long days demand.
Supports healthy blood flow and oxygen delivery to tissues through the night.
A steady, natural field supports a relaxed nervous system and a quieter mind.
A body that renews itself well every night ages well. EarthField is built to be slept on for a lifetime.
*Wellness statements. EarthField beds are not intended to diagnose, treat, cure or prevent any disease.
The beds
Same construction, same unipolar array. They differ in field strength. Complete either one with the EarthField Sleep Surface.
Twin XL or King · from $370/mo with financing†
30 G at sleeping height · 60× Earth
The place to start. A gentle, steady field your body adapts to over the first months.
Twin XL or King · from $620/mo with financing†
60 G at sleeping height · 120× Earth
For experienced users ready for a stronger nightly field. Our most powerful home bed.
The field certificate
After installation, our installer measures your bed with a calibrated gaussmeter at five points along your body line, and records your room's own field first. The certificate prints the lowest of the five.
0.4 → 60.8 G
Example: room baseline → lowest certified reading
The EarthField Lectures
A free series on the magnetic field, sleep and long life.
Reviews
Layout preview Sample reviews. Replace with verified customer reviews before launch.
EarthField
Every bed is measured at five points in your own room after installation, and the readings go on your certificate.
Shop the bedsHome / Beds
Two field strengths, two sizes. A Twin XL array for one sleeper, or a King of two arrays side by side, each certified at sleeping height after installation, on its own solid wood base.
We recommend the EarthField 30.
Twin XL or King · from $370/mo with financing†
Beginner · 30 G at sleeping height · 60× Earth
Twin XL or King · from $620/mo with financing†
Advanced · 60 G at sleeping height · 120× Earth
Add-on · Twin XL $1,480 · King $2,960 · memory foam over natural latex, metal-free
The layering Truth sleeps on, built to set your body at the exact height where every EarthField bed is certified. Add it to either bed, or keep your own metal-free mattress.
Every variation
A King is two Twin XL arrays side by side, so each sleeper lies centred in a field of their own. Couples can choose a different strength for each side.
| Twin XL · one sleeper | King · two arrays | |
|---|---|---|
| EarthField 30 | $8,880 | $15,480 |
| EarthField 60 | $14,880 | $25,880 |
| Mixed King, 30 + 60 | — | $20,680 |
| Sleep Surface add-on | $1,480 | $2,960 |
| Upgrade 30 → 60, installed | $6,480 per array | |
Every price includes the solid wood base, delivery, installation by our team, the five-point field certificate, a full-colour booklet on magnetism and a welcome letter signed by Truth Calkins. Sales tax is added at checkout where it applies. West Coast at launch.
| EarthField 30 | EarthField 60 | |
|---|---|---|
| Field at sleeping height | 30 G | 60 G |
| Multiple of Earth's field | 60× | 120× |
| Field geometry | Unipolar, Bio-North | Unipolar, Bio-North |
| Construction | Solid wood, brass bolts | Solid wood, brass bolts |
| Best for | First year on a field | Experienced users |
| Installation | By our team, included | By our team, included |
| Safety screening | Online questionnaire | Signed acknowledgment |
Beginner
30 G at sleeping height · 60× the Earth's field
The place to start. A gentle, steady unipolar field your body adapts to over the first months. Most sleepers begin here.
$8,880
or $370/mo over 24 months with financing†
| Field at sleeping height | 30 G, certified |
|---|---|
| Size | Twin XL (one sleeper) or King (two arrays) |
| Geometry | Unipolar, Bio-North facing the sleeper |
| Frame | Solid wood, brass hardware, no steel |
| Installation | By our team, included; 15 numbered slats |
| Base | Solid wood blocks, included [height from Truth] |
| Sleeping surface | About 10 in of metal-free latex and foam |
| Weight, magnet grade | [from Truth] |
Not for anyone with a pacemaker, defibrillator, insulin pump or other implanted electronics, or during pregnancy. Read the safety page.
What you receive
Every bed arrives with its solid wood base and is installed and certified by our team. The Sleep Surface completes the certified setup.
Also with every bed: a full-colour EarthField booklet on magnetism (its history, the science of the field, caring for your bed) and a welcome letter signed by Truth Calkins.
Advanced
60 G at sleeping height · 120× the Earth's field
For experienced users ready for a stronger nightly field. Our most powerful home bed, delivered with installation and a five-point certificate.
$8,880
or $370/mo over 24 months with financing†
| Field at sleeping height | 60 G, certified |
|---|---|
| Size | Twin XL (one sleeper) or King (two arrays) |
| Geometry | Unipolar, Bio-North facing the sleeper |
| Frame | Solid wood, brass hardware, no steel |
| Installation | By our team, included |
| Base | Solid wood blocks, included [height from Truth] |
| Screening | Signed safety acknowledgment before shipping |
| Weight, magnet grade | [from Truth] |
Not for anyone with a pacemaker, defibrillator, insulin pump or other implanted electronics, or during pregnancy. Read the safety page.
What you receive
Every bed arrives with its solid wood base and is installed and certified by our team. The Sleep Surface completes the certified setup.
Also with every bed: a full-colour EarthField booklet on magnetism (its history, the science of the field, caring for your bed) and a welcome letter signed by Truth Calkins.
Also with every bed: a full-colour EarthField booklet on magnetism (its history, the science of the field, caring for your bed) and a welcome letter signed by Truth Calkins.
The certified setup · add-on
$1,480 Twin XL
King (two surfaces): $2,960
Every EarthField bed is certified at sleeping height, and the sleeping surface decides that height. The Sleep Surface is the layering Truth sleeps on: high-density memory foam over natural latex, entirely metal-free, at the thickness our certificates assume.
| Size | Twin XL; King = two Twin XL surfaces |
|---|---|
| Top layer | High-density memory foam [thickness] |
| Base layer | Natural latex [thickness] |
| Total height | [from Truth], sets your body at certified height |
| Metal | None: no springs, coils, wire or metal fire barrier |
| Cover | [from Truth] |
Compatibility check
Three questions. If your mattress passes, our installer measures at its real height and the certificate records it.
No metal on or under the bed: no innerspring, pocket coil or hybrid mattress, no metal frame, box spring or adjustable base, no electric blanket or heated pad. Foam, latex, wool, cotton and futon are all fine. The EarthField platform replaces your bed frame; it rests on solid wood blocks we supply and set in place.
The thicker the mattress, the lower the field at your body. Readings at different heights: [chart from Truth's measurements].
Home / Learn
Every living thing on this planet formed inside a magnetic field. Most of us now spend our nights cut off from it.
The Earth is a magnet. Its field runs from pole to pole and, in the Northern Hemisphere, passes downward through everything standing on the ground. At the surface it measures between about 0.25 and 0.65 gauss, depending on where you are.
Nerves fire by moving charged ions across cell membranes. The heart keeps time with an electrical signal. Sleep itself is a sequence of electrical rhythms in the brain. Researchers such as Robert O. Becker, author of The Body Electric (1985), spent careers documenting how much of the body's growth and repair is organised by electrical currents.
The geomagnetic field has weakened by about 9% over the last two centuries, according to the European Space Agency. Indoors the loss is larger in practice: steel framing, rebar, spring mattresses and electrical wiring bend and distort the field around the bed.
EarthField places a steady, one-directional field under the sleeper, the same kind the planet provides, at 60 to 120 times its strength, and certifies the reading at the height where you sleep.
Home / Learn
Most magnetic products put both poles near the body. EarthField is built so you lie in the field of one pole only.
Both poles sit close to the body. The field loops back within inches, so you sleep in a field that keeps reversing direction.
Seventy magnets set as one continuous face. Their fields merge from about nine inches up into a single field that runs one way through the body.
The planet's field runs one way. The unipolar school of biomagnetics, from Albert Roy Davis in the 1970s to William Philpott's clinical work, holds that the two poles act differently on living tissue, and that the negative pole (Bio-North) is the one to rest in for long periods. EarthField is built on that principle: every magnet faces the same way, and every magnet's label confirms it.
Close to the magnet faces, each magnet's own field loops back on itself. Higher up, the fields merge into one smooth field. EarthField's sleeping surface sets your body about 10.5 inches above the array, inside the merged field, and that is where we measure.
Home / Learn
People already pay to concentrate what nature provides. Heat becomes a sauna. Cold becomes a plunge. Sunlight becomes red light therapy. EarthField does the same for the Earth's magnetic field.
Each of those practices takes a stimulus the body already knows and delivers more of it, in a controlled way, on a schedule. EarthField delivers the geomagnetic field at 60 or 120 times its strength, for the eight hours you already spend in bed.
The unipolar school holds that the benefit of a one-directional field rises with its strength: that a stronger field does more of what the Earth's field does. That is the school's position, built on decades of practitioner experience. Large controlled trials of nightly unipolar fields at these strengths have not been done. We say so plainly, and we let you see the number for yourself.
That is why we make two beds. Most people begin on the EarthField 30 and move to the 60 after they have slept on a field for a while.
Fall asleep sooner and spend more of the night in deep, restorative sleep.
Supports cellular energy production, so you wake clear-headed.
Supports overnight recovery of muscles and connective tissue after training.
Supports healthy blood flow and oxygen delivery through the night.
Supports a relaxed nervous system and lower everyday stress.
Nightly renewal, night after night, for decades.
If you track your sleep with a ring or a band, record two weeks before your bed arrives and compare the first month after. Deep sleep, resting heart rate and heart-rate variability are the numbers to watch.
EarthField beds are wellness products for sleep. They are not intended to diagnose, treat, cure or prevent any disease. Talk to your physician if you have a medical condition.
Home / Learn
People have used magnets on the body for as long as they have known magnets existed. The science of measuring the field is much younger.
Greek and Chinese writers describe lodestone, naturally magnetic magnetite, more than two thousand years ago. Healers in both traditions apply it to the body.
William Gilbert publishes De Magnete and argues that the Earth itself is a great magnet, which is why compasses point north.
Franz Anton Mesmer draws crowds in Vienna and Paris. A French royal commission that includes Benjamin Franklin investigates in 1784 and finds no evidence for his claims. Magnet therapy falls into disrepute for a century.
Carl Friedrich Gauss makes the first absolute measurement of the Earth's magnetic field. The unit of field strength is later named after him. Systematic records begin.
Albert Roy Davis and Walter Rawls publish Magnetism and Its Effects on the Living System (1974), proposing that the two poles act differently on living things. In Japan, physician Kyoichi Nakagawa describes symptoms he attributes to a lack of magnetic field.
Orthopedic surgeon Robert O. Becker publishes The Body Electric, documenting the electrical currents that guide growth and healing.
William H. Philpott, MD, sets out the clinical use of the negative pole in his Biomagnetic Handbook, and the first unipolar sleep pads appear in North America, delivering 5 to 20 gauss under the mattress.
Data from the European Space Agency's Swarm satellites show the Earth's field has weakened by about 9% over two centuries.
EarthField builds the unipolar bed to 30 and 60 gauss at sleeping height, and certifies every reading in the customer's own room.
Home / Learn
The physician who set out, in clinical terms, the rule EarthField is built on: rest in the negative pole.
William H. Philpott was an American physician with training and experience in psychiatry, neurology, nutrition, electroencephalography and toxicology. Over a long career he moved from studying how food and environment affect the brain to studying how magnetic fields affect the body.
His Biomagnetic Handbook is a practical manual on applying static magnets to the body. He later co-wrote Magnet Therapy, and with Dwight K. Kalita wrote Brain Allergies, republished by McGraw-Hill in 2000 with the subtitle The Psychonutrient and Magnetic Connections.
Philpott held that the two poles of a magnet act differently on living tissue. In his framework the negative pole (which EarthField calls Bio-North) is calming and supports the body's own restoration, and is the pole to rest in for long periods. The positive pole he regarded as stimulating, to be used only briefly and with care.
Every magnet in an EarthField array faces its negative pole toward the sleeper, and no positive pole sits near the body. The unipolar design, the labels on every magnet and the five-point measurement all follow from the principle Philpott spelled out.
This page describes Dr. Philpott's views and published work. EarthField beds are wellness products for sleep and are not intended to diagnose, treat, cure or prevent any disease.
Home / Learn
An honest account of what is known, what is claimed, and what is still open.
The Earth has a magnetic field of roughly half a gauss, it is weakening, and steel structures distort it indoors. The body runs on electrical signalling. Static magnetic fields at the strengths EarthField uses are widely regarded as low-risk for people without implanted electronics.
That the two poles act differently on living tissue, that a one-directional field is the natural one to rest in, and that a stronger field of that kind supports sleep, energy and recovery. These positions come from decades of practitioner and clinical experience, from Davis and Rawls to Philpott and the sleep-pad pioneers of the 1990s.
Most published studies of static magnets used small bipolar magnets, short sessions and mixed designs, and their results are mixed. Large controlled trials of nightly unipolar fields at 30 to 60 gauss have not been done. Until they are, we make no medical claims, and we give you the one thing we can prove: the measured field.
Home / Learn
Strong static fields interfere with implanted electronics. Every order is screened before it ships.
Do not use
Keep credit cards, hard drives, mechanical watches and phones off the bed: the field can damage magnetic media. Metal plates, screws and joint replacements without electronics are generally not affected, but ask your surgeon if in doubt.
Magnet slats attract one another strongly. Only our installers assemble and take apart an EarthField bed. Do not remove slats yourself.
If you have a medical condition, talk to your physician before using an EarthField bed.
Home / Help
Most people start on the EarthField 30. The 60 is for people who have already slept on a magnetic field and want a stronger one. The chooser on the beds page will suggest one.
Delivery, installation by our team, the wood base, your field certificate, the EarthField booklet and Truth's signed letter are all included. Sales tax is not included: it is calculated at checkout from your delivery address.
A Twin XL array is sized for one sleeper. A King is two Twin XL arrays side by side, so each partner lies centred in a field of their own, and each side can be 30 or 60 G.
Yes. The 60 is the 30 with a second array. We add it in your home and re-certify: $6,480 per array, installed.
At 10.5 inches above the magnet faces, where your body lies on a 10 inch sleeping surface, at five points along your body line. Measured at the magnet face the number would be higher. We publish the figure you actually sleep in.
It is what biomagnetic practitioners call the negative pole. Every magnet is checked with a compass before it is labelled, and every one faces that pole toward the sleeper.
No. A static magnetic field does not block radio frequencies. If EMF concerns you, keep devices out of the bedroom and switch Wi-Fi off at night.
Yes, if it has no metal springs, coils or frame. Steel distorts the field. Run the compatibility check: if your mattress passes, our installer measures at its actual height and the certificate records it. Or choose the EarthField Sleep Surface, the setup every bed is certified on.
Yes. Book our relocation service: our team takes the bed apart, it travels by road, and we reassemble and re-certify it in your new home. $1,480 within our service region.
No. EarthField beds are wellness sleep products. They are not intended to diagnose, treat, cure or prevent any disease.
Home / Lectures
A free lecture series on the magnetic field, sleep and long life, taught by Truth Calkins. New episodes every month.
Your teacher
[Bio from Truth: his training, how long he has been designing and building unipolar beds, and why he started EarthField. Three to four sentences.]
Home / About
EarthField was founded by Truth Calkins and [co-founder name] to build the strongest honest magnetic bed in America.
The best-known magnetic sleep pads top out at 20 gauss. We wanted a bed built to a higher standard: stronger, unipolar by design, made without steel, and proven in the room where it sleeps.
Every EarthField bed is measured after installation, at five points, at sleeping height, with a calibrated meter. The lowest reading goes on your certificate. No marketing number, no measurement at the magnet face.
Truth Calkins designs and builds the beds and teaches the lecture series. [Co-founder name] runs operations, quality and customer care. [Founder bios and photos to add.]
Home / About
Every bed is measured in your room, after installation. Here is exactly how.
0.4 → 60.8 G
Example values.
Before the bed goes in, the installer measures your room's own field at sleeping height and records it.
After assembly, readings are taken at head, chest, hips, knees and feet, 10.5 in above the magnet faces, with the probe perpendicular to the bed.
The certificate headline is the lowest of the five readings, so any check you make will meet or beat it.
Your bed's serial number; the gaussmeter's model, serial number, calibration date and calibrating lab; the room baseline; the five readings; the installer's name and signature; the date; and a photo of the installed bed.
Home / About
Layout preview Sample reviews. Replace with verified customer reviews before launch.
Home / Help
Questions about which bed, safety, delivery or the science. A specialist answers every message.
[phone number]
[support email]
[Hours and time zone]
After you order, you complete a short safety questionnaire. The EarthField 60 also requires a signed acknowledgment.
Your bed ships by ground freight in boxes one or two people can carry. [Lead time to confirm.]
Our installer assembles the bed, measures your room and the bed at five points, and hands you the signed certificate.
Every EarthField bed is installed by our team: platform, solid wood base, magnet slats and the five-point measurement. We do not sell self-assembly. Moving house? Our relocation service takes the bed apart and reinstalls it.
[Delivery area to confirm.]
[Length and coverage: magnets, frame, hardware.]
[Trial length, return shipping terms and restocking fee, if any.]
[Proposed: if any certified reading falls below the stated figure during the warranty, we come back, re-measure and correct it.]