Calm & stress relief

Calm isn't a personality trait. It's 20 minutes away.

Stress is a nervous-system state — and a PEMF session is the switch. No screen, no substance, no effort.

Which kind of stressed are you?  ↓
Relaxing on the Grooni PEMF mat at home
4.95★ average rating · 95% of reviews are 5 stars

Start with your symptom

Which kind of stressed are you?

The right mat depends on where stress catches you — not on the product.

Wired all day, can't wind down

PEMF Pro — Relax program
PEMF Infrared Mat Pro, 6 & 12 CoresPEMF Infrared Mat Pro, 6 & 12 Cores£677.59£1,015.55 View →

Stress lives in your neck and back

4-in-1 — warmth + red light
PEMF Mat 4-in-1, Red Light & Infrared HeatPEMF Mat 4-in-1, Red Light & Infrared Heat£1,015.55£1,397.55 View →

Stress spikes at your desk

PEMF chair mat
PEMF Infrared Chair Mat ProPEMF Infrared Chair Mat Pro£423.49£762.29 View →

Tense on the road and away from home

PEMF Mini — calm anywhere
PEMF Infrared Therapy Mat MiniPEMF Infrared Therapy Mat Mini£338.79£423.49 View →

How a calmer day works

Reset in the moment. Retrain every evening.

2:00pmIn the moment · 20 min

The midday reset

Stress spikes — you sit back on the chair mat or Mini instead of pushing through it.

8:00pmThe ritual · 20 min

The evening wind-down

Ground program, 7.83 Hz — the same 20 minutes, same time, every day.

All dayResult

A lower baseline

Stress still comes — it just stops sticking. That's what a daily practice buys you.

The science, simply

Why it works

Your nervous system runs on frequencies. PEMF speaks its language — two programs, two jobs.

The evening ritual · Ground, 7.83 Hz

Ground — 7.83 Hz

1
You lie down at the same time each eveningPress start — the mat does the rest for 20 minutes.
2
Pulses tuned to the Schumann resonance7.83 Hz — the Earth's natural frequency, the one our bodies evolved with.
3
Your nervous system learns the routineA repeated downshift, at the same time daily, becomes automatic.

→ Calm becomes your baseline, not an exception.

In the moment · Relax, 10 Hz

Relax — 10 Hz

1
Stress spikes — you sit back for 20 minutesAt the desk on the chair mat, or anywhere with the Mini.
2
Pulses at 10 Hz — the alpha rhythmThe calm-but-alert state: unwound, without feeling sleepy.
3
Your body steps out of fight-or-flightMuscles release, breath slows — the spike passes through you.

→ A real reset — no screen, no substance.

1

Start here · the daily ritual

At home — the practice

Twenty minutes, same time every evening. This is where calm is built.

Pulsed electromagnetic field mat (Also know as PEMF or PMF) with adjustable frequencies and infrared light for relaxation and wellness

PEMF Infrared Mat Pro, 6 & 12 Cores

Ground & Relax programs — your 20-minute evening ritual.

£677.59£1,015.55 View product →
Grooni PEMF Photon Mat profile picture

PEMF Mat 4-in-1, Red Light & Infrared Heat

The ritual plus red light and deep infrared warmth.

£1,015.55£1,397.55 View product →
2

Level up · calm on demand

Anywhere — the reset

For the moments stress actually strikes: your desk, the road, someone else's guest room.

Black chair pemf mat with grid pattern and 'Grooni' branding on a white background

PEMF Infrared Chair Mat Pro

Desk calm — no lying down required.

£423.49£762.29 View product →
PEMF Infrared Therapy Mat Mini - Body Revitalization On The Go - Grooni Earthing

PEMF Infrared Therapy Mat Mini

The travel-sized reset, wherever the day takes you.

£338.79£423.49 View product →

The Grooni evening ritual

Twenty minutes. Same time. Every evening.

Lights low, phone in the other room, press start. Calm isn't something you buy — it's something you practice. The mat just makes the practice effortless.

Begin your evening ritual

No settings to learn — one tap, then lie down.

Backed by science & 50,000+ customers

20 min

One session. That's the whole commitment — most feel the shift before the timer ends.

Don't take our word for it

The research behind the ritual

Peer-reviewed studies on PEMF — read them yourself.

PEMF Double-blind RCT: 70% of insomnia patients reported substantial or complete relief with low-frequency PEMF — a downshift strong enough to measure Pelka, Jaenicke & Gruenwald · Advances in Therapy, 2001 ↗ PEMF Randomized study: PEMF therapy improved fatigue and pain scores with daily use — the physical load stress leaves behind Randomized controlled study · PubMed, 2015 ↗ PEMF RCT: PEMF significantly reduced pain and stiffness in knee osteoarthritis — the kind of tension that keeps a body braced Bagnato et al. · Rheumatology, 2016 ↗

Individual results vary. More studies and summaries on Grooni Research →

Still curious?

Calm questions, answered

Which program should I use for calm — Ground or Relax?
Relax (10 Hz, alpha) when you need to unwind but stay clear-headed — the midday reset. Ground (7.83 Hz, the Schumann resonance) for your evening ritual, when the goal is settling all the way down. Both are one-tap presets; no settings to learn.
How is this different from a meditation app?
It doesn't ask anything of you. No focusing, no breathing technique, no streak to maintain — you lie down, press start, and the mat runs the session. Many customers use both: the mat handles the body, the practice handles the mind.
Will I feel calmer after one session?
Most people notice they feel more relaxed during sessions early on, with the bigger shift — a lower everyday baseline — building over a week or two of daily use. That's exactly why there's a 60-day window to try it yourself.
When is the best time for a session?
Whenever stress hits, plus one anchored ritual — most choose the evening. Just save the Restore program (3 Hz) for right before bed; Relax and Ground are your daytime and wind-down settings.
Is it safe to use every day?
Yes. PEMF is non-invasive and considered safe for daily use, with no known side effects for most people. If you have a pacemaker or are pregnant, check with your doctor first.
Can it replace medication or therapy?
No — it's a wellness tool, not a medical treatment. If you're managing a diagnosed condition, keep working with your doctor; the mat can sit alongside whatever they recommend.
Can I pay with HSA/FSA?
Yes — Grooni partners with Truemed so eligible buyers can use pre-tax HSA/FSA funds at checkout, saving an average of around 30%.
What's the return policy?
Try it for 60 days. If it's not for you, send it back for a full refund — plus every mat carries a 2-year warranty.

Your 20 minutes are waiting

Try it for 60 days

If you're not feeling calmer within 60 days, send it back for a full refund.

Calm is one door. Restless nights the real problem? Explore Sleep →