What’s Actually Inside Your Mattress Pad? (The Zero EMF Promise)

The Truth About Mattress Pads

Most sleep technology brands don’t want you to ask what’s inside your mattress pad. They market “smart sleep” with glossy visuals, but rarely explain the engineering choices that affect your health. At Oak Sleep, we believe in radical transparency. If you’re about to spend $1,800+ on sleep technology, you deserve to know exactly what’s under you every night.


Hydronic vs. Electric: The Core Difference

There are three main approaches to temperature regulation in mattress pads:

  • Electric Pads: These use resistive heating wires or embedded electronics directly under your body. While effective for heat, they generate electromagnetic fields (EMF) and can create uneven hot spots.
  • Hydronic Pads (Oak Sleep): These circulate water through micro‑channels in the pad. Water is the most efficient medium for transferring heat, delivering smooth, even cooling and heating across the entire surface. With no electronics in the pad, Oak Sleep ensures zero EMF exposure while you sleep.
  • Hydronic Pads with Embedded Sensors (e.g., US Market Leaders): These combine water circulation with electronic sensors inside the pad to track heart rate, breathing, and movement. While this enables advanced data collection, it also introduces higher EMF exposure directly under your body, increases complexity and cost, and often requires ongoing subscriptions to access the data.

The Zero EMF Promise

When designing Oak Sleep HUB 2, we made a deliberate choice: keep all electronics out of the mattress pad.

  • The pad contains only water channels — no wires, no sensors, no electronics.
  • All pumps, sensors, and controls are housed in the HUB unit, safely positioned away from your body.
  • This design ensures zero EMF exposure where it matters most: directly under you while you sleep.

For customers who care about long‑term health, this isn’t just a feature — it’s a promise.


Why We Keep Sensors Out of the Pad

Competitors often embed sensors in the mattress pad to track heart rate, breathing, or movement. While this sounds impressive, it comes with trade‑offs:

  • Higher EMF exposure from electronics under your body.
  • Reduced durability — sensors and wires are more prone to wear and tear.
  • Increased cost — subscriptions are often added to justify the data collection.

Oak Sleep takes a different approach:

  • We measure water temperature in/out and ambient room temperature from the HUB.
  • We use 20 million hours of sleep data to optimise recovery without needing sensors under you.
  • The result: better sleep, lower EMF, higher reliability, and no subscription fees.

Transparency in Design

If you opened up an Oak Sleep pad, here’s what you’d see:

  • Micro‑channel water pathways woven into the fabric.
  • Durable, medical‑grade materials designed to withstand years of use.
  • No wires, no electronics, no hidden surprises.

We encourage customers to look closely. Static close‑up photos of our pad show exactly how the hydronic channels are structured — proof that Oak Sleep is engineered for health first, performance second, and marketing last.


The Oak Sleep Promise

We are not here to claim we’re “better than Eight Sleep.” They are the best in the world.

Oak Sleep exists for those who want the best value sleep technology available in Australia today — engineered with transparency, tested for reliability, and designed with health in mind.

No EMF. No subscriptions. Just proven science and deeper sleep.

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