A made bed standing alone on the shore of a still lake at dusk — the quilted Litual topper and its controller catching the last warm light, the water and treeline already cold

For a nervous system that never gets to switch off

Warmth does
the work — not you.

Your work, your people, your worries — they all follow you into bed. Kozy turns that bed into the one place they can't. Deep, permeating warmth, rooted in Korea's centuries-old ondol tradition.

★★★★★  4.9 · 100+ reviews from 28 countries

100 nights to decide. If it isn't this, send it back — no questions.

Made in small batches in Seoul — we confirm your size and region within 48 hours.Small batches, Seoul · confirmed within 48h

How it feels ↓
Lying back on a wide flat rock at dusk, the water and the hills already cold, the stone still warm from the day

The Feeling

It feels like —

the sun-warmed rock you stretch out on after an evening swim. The light gone, the air cool, the stone still holding the day.

  • Laundry straight from the dryer.
  • Lowering yourself into a bath that is exactly, precisely right.
  • Falling asleep warm against someone you love.

Litual brings that moment to the one place you end every day: your bed.

The Thing We Didn't Expect

Not a winter thing.

We assumed people would fold it away in April. They didn't. Nine in ten keep pressing the button in June, in September — and when we asked why, no one said "to get warm." They said something loosens. The shoulders. The jaw. The breath that finally goes all the way down.

That's when we understood what we'd actually made. Not a warm bed. A place the body agrees to let go.

The Collection

The bed. And the one you carry.

The Litual topper on a mattress in morning light — quilted surface, corner strap and the white controller resting on top 01 · The Flagship

Litual

The last ritual of the day

A far-infrared topper that lies under your fitted sheet and turns your mattress into the place your body waits for all day. Instant ease, deeper sleep — without changing a single habit.

  • Deep-sinking warmth — a sun-warmed stone, not an electric blanket
  • Gentle to deep, your side only — dual-zone control, timer, auto shut-off
  • Two seasons, one topper — cloud-soft winter side, airy summer side
  • Made for real life — machine-washable, foldable, fits any mattress

From €790 · Single / Queen / King

100-night no-questions return · 2-year warranty

Reserve your Litual

Takes 30 seconds — size, region, email. We confirm availability within 48 hours.

The Poom wrap open on dark slate in low evening light — the matte black band, its power button lit, and a power bank held in the pocket by its strap 02 · The Emergency Kit

Poom

Warmth where you hold it — 품, the warm space in someone's arms

A matte black warmth wrap for your lower back or belly. For when the pain flares, when the anxiety climbs, when you're lying in a hotel bed that isn't yours. The thing you reach for when Litual can't come with you.

  • Invisible under clothes — unnoticed by everyone but your body
  • Warmth exactly where you need it — back, waist, belly, up to 6cm deep
  • A battery that lasts the day — any USB power bank, up to 6.5 hours
  • Small enough to live in your bag — for travel, for long days, for the moments that arrive without warning

€149

30-day risk-free trial · 2-year warranty

Get your Poom

Night One

Here's how
tonight goes.

8:47 pm

It arrives folded, lighter than you expected. Two minutes to lay it flat under your fitted sheet. That's the whole setup.

10:12 pm

You press the button on your way to brush your teeth. By the time you're back, the bed has been quietly gathering warmth — like the rock holding the afternoon's sun.

10:26 pm

You get in. Cool air on your face, deep warmth along your back. Your shoulders come down. You don't remember deciding to fall asleep.

The Litual topper on a bed under an attic window, snow-covered forest outside, one warm lamp inside
7:15 am

You wake up before the alarm and lie there a moment, doing the math on how long it's been since a morning felt like this.

Morning light on the bed — the duvet folded back over the topper, a cup of tea, a book and reading glasses on the linen

And if 100 nights from now you don't recognize yourself in this — send it back. Full refund, no questions.

The Oldest Warmth Wisdom on Earth

Cool air above.
Warmth below.

For centuries, Korean homes have been built around one quiet idea: don't heat the room — warm the floor where the body rests. Cool air on your face. Deep warmth beneath you. Generations have fallen asleep this way.

Modern sleep science agrees. Keep your bedroom cool; warm the bed, not the air. As warmth reaches the skin, the body eases, softens, and lets sleep arrive on its own.

This isn't heat. Heat clings. Warmth holds.

The science of warmth

Snow falling over a city outside a tall window; inside, the Litual topper on the bed and one warm lamp
온돌 · Ondolcool air above, warmth below

The Kozy Way

You weren't resting wrong.
You just had nothing left to rest with.

Magnesium at 10pm. Breathwork. An app that grades your night. They're not bad tools — but every one of them needs something from you in the moment. And on the nights you're most empty, there's nothing left to give. So you give none of it, and scroll until 2am.

Kozy works on exactly those nights. It's the one that needs nothing from you at all.

Needs something from you

  • Magnesium at 10pm
  • Blue-light glasses
  • An hour-long meditation app
  • Ice baths, cold showers
  • A twelve-step sleep routine
  • And on the emptiest nights, none of it happens

Needs nothing from you

  • Lie down. Press one button.
  • Warmth sinks in, muscle by muscle
  • Your shoulders come down from your ears
  • Your body lets go on its own
  • You drift off without trying
  • You wake up actually rested — having done nothing at all

Far-infrared warmth reaches deep, the way sunlight warms a stone — and once it does, your body remembers how to rest by itself.

100+
reviews · 4.9 average
9 in 10
use it outside winter
89.9%
far-infrared emissivity
30+
years of Seoul craft

Real Stories

The first night
they actually stopped.

★ 4.9 · 100+ REVIEWS ACROSS LITUAL AND POOM

The first night I turned on Litual, I actually cried. It was the first time all day I felt completely held and allowed to just… stop.
Elena R. · Milan · Litual
I used to take one or two hours to fall asleep. Now I'm out in fifteen minutes. No pills, no apps, no routines. Just warmth.
Sebastian M. · Hamburg · Litual
I use it at the office, on the plane, even at a restaurant. Nobody sees it under my clothes.
Marie L. · Lyon · Poom

Read all 63 Litual reviews

Real People · Real Factory · Real Standards

Made properly,
or not at all.

Seoul craft

Made in Seoul by a team with 30+ years in textile manufacturing — people who know how things should be made, not just how they can be.

Trusted at home

Stocked by Evezary (이브자리), Korea's leading bedding retailer, and exported to Japan — markets with the world's highest standards for sleep.

Recognized in Europe

Selected by La French Tech. INSEAD Launchpad at Station F. Exhibited at VivaTechnology Paris.

Safe by design

CE · UKCA · OEKO-TEX® certified. 24V low-voltage system, auto shut-off, ultra-low power. Gentle enough to fall asleep on.

A hotel room at turndown — the Litual topper under the folded-back duvet, one bedside lamp, city lights beyond the window

For Partners

Bring Korean warmth
to the people you care for.

Hotels designing deeper sleep for their guests. Physiotherapists extending their work beyond the table. Postpartum professionals, corporate gifting, senior residences, sports clubs.

Partner with Kozy

You've done enough
today.

Tonight, don't add another step. Lie down. Press one button. Warmth does the work.

100 nights to decide. If it isn't this, send it back.

100-night return · 2-year warranty · Made in small batches in Seoul · CE · UKCA · OEKO-TEX®