A couple sleeping in a zero disturbance mattress

Zero Disturbance Mattress Technology & How It Stops Partner Disturbance

Zero Disturbance® is Koala's proprietary motion isolation technology. It uses responsive Kloudcell® foam to soak up partner movement at the source so it doesn't travel across the bed, meaning you sleep soundly no matter how much your partner tosses and turns. Combined with targeted support zones for spinal alignment, Zero Disturbance® is featured in all Koala mattress models. Below we cover what it actually is, how the fast-response foam mechanism works, how it compares to standard foam and spring motion transfer, and whether it's worth it for couples.

Key Takeaways

  • Zero Disturbance® is Koala's motion isolation technology that uses responsive Kloudcell® foam to absorb partner movement at the source, so movement doesn't travel across the bed

  • Fast-responding Kloudcell® foam reacts instantly to movement (unlike slow-response traditional memory foam), which is what makes the motion absorption work

  • Zero Disturbance® is featured in all 5 Koala mattress models (SE, Koala, Plus, Polar+, and Luxe), paired with 3, 5 or 7 targeted support zones for alignment

  • The comfort layer absorbs motion at the source, so a partner rolling over on one side doesn't disturb the other

  • Best for couples with different sleep schedules, restless partners, light sleepers, and new parents where partner movement affects sleep quality

What Zero Disturbance Motion Isolation Actually Is

Zero Disturbance® is Koala's proprietary motion isolation technology, designed to absorb partner movement at the source so it doesn't travel across the bed. It uses responsive Kloudcell® foam as the mechanism, and it's featured in all Koala mattress models paired with targeted support zones for spinal alignment.

Key features of Zero Disturbance®:

  • Trademark Koala technology: Zero Disturbance® is a proprietary Koala name for our motion isolation approach, engineered specifically around our Kloudcell® foam

  • Built into all 5 Koala mattress models: the Koala SE, Koala Mattress, Koala Plus, Koala Polar+, and Koala Luxe all feature Zero Disturbance®

  • Uses responsive Kloudcell® foam: the same open-cell foam that delivers Kloudcell® cooling also provides the fast-response required for motion absorption

  • Motion absorbed at the comfort layer: rather than transferring across the mattress structure

  • Paired with targeted support zones: 3 zones in the SE and Koala Mattress, 5 zones in the Plus and Polar+, 7 zones in the Luxe

Per our own AU product description: "Zero Disturbance® technology uses responsive Kloudcell® foam to soak up movement at the source so it doesn't travel across the bed." This is the core mechanism the technology is built around.

How It Stops You Feeling Your Partner Move

Zero Disturbance® stops you feeling your partner move by absorbing movement at the comfort layer, where your partner is compressing the foam, before the compression can travel across the mattress to your side. The key is fast-response foam: Kloudcell® reacts instantly to compression and returns to shape, while slow-response traditional memory foam creates lingering compression that transfers energy sideways.

The mechanism step-by-step:

  • Fast-responding Kloudcell® foam reacts instantly when compressed by movement, so the compressed area springs back before the compression wave can travel across the mattress

  • Motion is absorbed at the source: the compressed area on your partner's side handles the movement locally rather than distributing it

  • No spring transfer: unlike traditional coil-spring mattresses where linked springs transfer motion through the entire structure, Kloudcell® absorbs compression at the point of contact

  • Multi-layer support underneath doesn't amplify motion: the support core is designed to hold shape rather than transfer movement

  • Zone construction further contains movement: 3, 5 or 7 targeted support zones (depending on model) mean the movement is contained within the compressed zone

The practical outcome: your partner tossing, turning, sitting up, or getting out of bed doesn't create the "bed-bouncing" or "ripple" effect common on cheap foam or traditional continuous-coil spring mattresses. As we put it on our product pages: "Unlike slow-response memory foam, this fast-responding foam reacts instantly when you move, making it easier to change positions with less disturbance."

Zero Disturbance vs Standard Foam & Spring Motion Transfer

Motion transfer varies significantly by mattress construction. Traditional coil-spring mattresses transfer the most motion; fast-response open-cell foam mattresses (like our Koala range with Zero Disturbance®) transfer the least. Here's how the common construction types compare in one table.

Mattress Type

Motion Transfer Level

How It Handles Motion

Impact on Partner Sleep

Koala Zero Disturbance® (fast-response Kloudcell®)

Very low

Fast-responding open-cell foam absorbs motion at the comfort layer

Partner movement rarely felt

Traditional memory foam (slow-response)

Low, but ripples

Slow foam creates lingering compression that transfers slightly

Some ripple felt during partner movement

All-foam mattress (standard polyurethane)

Medium

Foam absorbs some motion but responds slower

Noticeable movement during partner shifts

Pocket spring mattress (individually wrapped)

Low to medium

Individual springs isolate motion better than continuous coils, but still transfer some

Some movement felt, less than continuous coils

Traditional coil-spring mattress (continuous coils)

High

Linked springs transfer motion across the entire mattress

Every partner movement felt across the bed

Hybrid (foam + pocket springs)

Medium to low

Foam layer absorbs some motion; springs isolate rest

Depends on foam depth; better with thicker foam layer on top

Latex mattress

Low

Natural latex is responsive and absorbs motion at contact

Partner movement barely felt

The takeaway: for genuine partner-disturbance reduction, fast-response open-cell foam (like our Kloudcell® with Zero Disturbance®) sits at the top of the motion-isolation stack. Traditional coil-spring mattresses sit at the bottom and should be avoided if partner disturbance is your main concern.

Which Koala Mattresses Have Zero Disturbance

All 5 Koala mattresses feature Zero Disturbance® technology as a range-wide feature: the Koala SE, Koala Mattress, Koala Plus, Koala Polar+, and Koala Luxe. It works in combination with targeted support zones for spinal alignment, so you get both motion isolation and correct sleep-position support.

The Zero Disturbance® + zoned support pairing across the range:

  • Koala SE Mattress: 5 cm Kloudcell® comfort layer + 3-zone support with Zero Disturbance®

Modern bedroom with light grey bedframe and mattress, wooden legs, grey armchair, round ottoman, floor lamp, and light grey rug.

  • Koala Mattress: 7 cm flippable Kloudcell® comfort layer + 3-zone charcoal marble dyed support with Zero Disturbance®

 

Wooden bed frame with a light green mattress, grey and white pillows, and a beige blanket. Artwork and lamps decorate the room.

 

  • Koala Plus Mattress: 8 cm Cooling Gel Kloudcell® flippable comfort layer + 5-zone support with bamboo charcoal edge support and Zero Disturbance®

Modern bedroom with a wooden bed frame, green mattress, and decorative cushions. A side table with a lamp and minimalist decor complete the setting.

  • Koala Polar+ Mattress: 8 cm Cooling Gel Kloudcell® flippable comfort layer + 5-zone support with PolarBands® and Zero Disturbance®

Modern bedroom with a wooden bed frame, dark green mattress, and striped pillows. Light grey walls, wooden side table, and decor accents.

  • Koala Luxe Mattress: 9 cm Copper Kloudcell® comfort layer + 7 targeted high-density support zones with Zero Disturbance®

Koala Luxe Mattress in King on walnut bed frame in modern bedroom with teal stripe detail

All 5 models deliver Zero Disturbance® effectively. The more Kloudcell® in the mattress (up to 9 cm in the Luxe), the more comfort-layer capacity there is to absorb motion, but even the entry-tier Koala SE delivers the same core Zero Disturbance® benefit.

Is Zero Disturbance Worth It for Couples?

Yes, Zero Disturbance® is worth it for couples if either partner is a light sleeper, works shift work, tosses and turns often, gets up during the night, or is affected by the other partner's movement. It's less critical for couples who both sleep heavily, sleep in a split king setup, or already sleep in separate beds.

Best fit for:

  • Couples with different sleep schedules: shift workers, early risers with late-night partners

  • Light sleepers who wake at any bed movement

  • Restless partners: one partner who tosses and turns

  • Frequent getters-up: bathroom trips, checking on kids, work calls

  • New parents: partner movement during night feeds

  • Pet owners with pets on the bed: dogs or cats that move around

  • Couples where one partner is a stomach sleeper: stomach position typically involves more shifting

Less critical for:

  • Couples who both sleep heavily: rare movement + heavy sleep = motion isolation matters less

  • Split king setups: already have physical separation between the two mattresses

  • Solo sleepers: motion isolation is a partner-related benefit, not applicable

For couples where either partner is a light sleeper or restless mover, Zero Disturbance® can materially improve sleep quality by reducing wake-ups from partner movement. If both partners already sleep deeply and don't wake from each other, the value is more about future-proofing (new baby, health changes, ageing sleep patterns).

Explore Our Range with Zero Disturbance® Motion Isolation

All 5 of our Koala mattresses feature Zero Disturbance® technology, so you sleep soundly no matter how restless your partner is. All models feature Kloudcell® open-cell foam, CertiPUR-US® certified foam, our 120-night trial, and 10-year warranty. Explore the range:

  • Koala Mattress: flippable Firm/Medium-Firm, 25 cm total with 7 cm Kloudcell® (40% more than SE), zip-off topper with carbon-zero TENCEL™ Lyocell ticking, and 3-zone charcoal marble dyed support with Zero Disturbance®.

  • Koala Plus Mattress: flippable Medium-Firm/Medium, 28 cm total with 8 cm Cooling Gel Kloudcell® (60% more), reversible summer/winter topper, and 5-zone support with bamboo charcoal edge support and Zero Disturbance®.

Browse our Queen mattresses and King mattresses collections for couple-sized options, or our full premium mattress range to compare all Koala models with Zero Disturbance®.

 

Frequently Asked Questions ( FAQs )

What is motion isolation in a mattress?

Motion isolation in a mattress is the mattress's ability to absorb movement in one area without transferring it to other areas of the bed. Good motion isolation means your partner tossing, turning, or getting up doesn't create a bounce or ripple effect that wakes you. It's delivered through fast-responding foam materials (like our Kloudcell® with Zero Disturbance®), individually wrapped pocket springs, or specific zoned construction. Motion isolation is one of the most important features for couples where either partner is a light sleeper or the two partners have different sleep schedules.

What mattress has no motion transfer?

No mattress has literally zero motion transfer because physics doesn't allow it, but the closest performers are fast-responding all-foam mattresses like our Koala range with Zero Disturbance®, high-density memory foam mattresses, and pocket-spring hybrids with substantial foam layers on top. Traditional continuous-coil spring mattresses have the highest motion transfer and should be avoided if partner disturbance is your main concern. Our Zero Disturbance® technology absorbs motion at the comfort layer using responsive Kloudcell® foam, so partner movement rarely reaches your side of the bed.

Is Zero Disturbance worth it for light sleepers?

Yes, Zero Disturbance® is particularly worth it for light sleepers because it addresses the most common cause of partner-related wake-ups: motion transfer through the mattress. Light sleepers benefit from every reduction in movement they can feel across the bed, and Zero Disturbance® uses fast-responding Kloudcell® foam to absorb movement at the comfort layer before it can travel. For genuine light sleepers sharing a bed, this is one of the most impactful mattress technologies you can invest in, alongside a properly sized mattress (Queen minimum, King preferred for couples) and quality bedding.

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