KOZ-E Sleep: Cooling & Heating Water-Powered Mattress Pad (No EMF)

30 September 2025 | Marissa Long
matras koeler

Do you wake up sweaty at night—or lie there shivering, waiting to finally get warm? With KOZ-E Sleep you don’t have to choose. This water-powered under-blanket gives you the best of both worlds: cooling sleep on warm nights and warming sleep when it’s cold. Setting your sleep temperature is quick and precise—so your bed feels exactly the way you like it.

Why temperature matters so much for your sleep

Your body naturally cools down to enter deep sleep. If your bed is too warm, you sweat; if it’s too cold, you keep tossing and turning. That costs energy and disrupts sleep cycles. By cooling or warming your bed at the right moment, you reach the comfort zone faster and sleep through the night—with fewer wake-ups.

How KOZ-E Sleep works: smart, safe, and hassle-free

KOZ-E Sleep uses a  water circuit in a thin, comfortable layer beneath your sheet. Water transfers heat much more evenly than air: that means no “hot spots” like with some electric blankets, and no dry, blowing air like with AC. The result is a calmer skin feel and a consistent temperature across the entire sleeping surface.

  • Cool your mattress topper without making the surface clammy.

  • Warm the bed with enveloping, gentle comfort.

  • Set your sleep temperature in one-degree steps—choose what feels right.

Cooling sleep in summer

Summer nights and heat waves call for more than an open window or a fan. With KOZ-E Sleep you can cool the bed so your body heat is subtly carried away. That gives a fresh, dry feel—ideal if you suffer from night sweats or restless heat spikes.

Perks for hot sleepers:

  • Less perspiration and sticky bedding

  • Constant, even cooling (no cold shock or draft)

  • Calmer heart rate and easier time sleeping through

Warming sleep in winter

Cold evenings? Simply switch to warming sleep. The water under-blanket builds warmth evenly, with no stiff wires or pinpoint heat. You slip into a cozy bed that relaxes your muscles and helps you drift off faster.

Great in winter:

  • Warm quickly without heavy layers of blankets

  • Steady comfort—no peaks and dips

  • Comfortable for sensitive backs and shoulders

Quiet and efficient: comfort without compromise

Good sleep needs quiet. KOZ-E Sleep is designed to be whisper-quiet at ~30 dB (about a soft whisper), so the system fades into the background. And because you condition the space right where your body is, energy-efficient sleep comes naturally: you’re not heating or cooling the whole room—just the bed. That’s both more efficient and more comfortable.

KOZ-E vs. alternatives: what’s the difference?

  • AC/fan: cools the room, dries the air, and can cause drafts. KOZ-E cools inside your mattress layer—without dry air or drafts.

  • Electric blanket: often creates hot spots and can feel too warm. KOZ-E distributes heat evenly and can actively cool as well.

  • Gel or foam topper: passive cooling is limited and warms up from body heat. KOZ-E keeps actively regulating.

For couples with different preferences

One likes it fresh, the other cozy warm—sound familiar? With KOZ-E, cooling and warming are possible at the same time in a dual-zone setup. Everyone sets their own sleep temperature—relationship peace restored.

Installation and maintenance: very easy

Place the KOZ-E layer on your mattress or topper, connect the unit, and fill the water tank. Then set your preferred temperature with a single press. Maintenance is simple: occasionally top up water and add conditioner periodically as instructed. That keeps the system fresh and performing at its best.

Who is KOZ-E ideal for?

  • Hot sleepers who wake up sweaty at night

  • Cold sleepers who struggle to warm up

  • Shift workers who need cooler “daytime” sleep

  • Couples with different temperature preferences

  • Anyone seeking comfort without dry air or noise

In short: one system for every season

KOZ-E Sleep is a smart, quiet climate layer built right into your bed. Cool your topper when it’s hot, warm the bedwhen it’s cold, and always set the sleep temperature your body needs now. Sleeping becomes naturally comfortable—night after night.

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