Gel Memory Foam vs Regular Memory Foam, What's the Difference?

Gel memory foam and regular memory foam are both viscoelastic foams that contour to your body, but gel memory foam has cooling gel infused into or layered onto the foam to draw heat away from the body during the first few hours of sleep. The gel is typically added as beads, swirls, or a top layer designed to reduce the heat retention that traditional closed-cell memory foam is known for. Below we cover what each foam actually is, how they compare on cooling and feel, whether gel foam truly sleeps cooler over a full night, and how our Cooling Gel Kloudcell® approach compares.

Key Takeaways

• Gel memory foam is regular memory foam with cooling gel added (as beads, swirls, or a surface layer) to draw heat away from the body

• Regular memory foam contours deeply but can trap heat because the closed-cell structure limits airflow

• Gel memory foam provides initial cooling for the first 2 to 3 hours of sleep; over a full night, the difference vs regular memory foam narrows as the gel reaches thermal equilibrium

• Our Cooling Gel Kloudcell® (used in the Koala Plus and Polar+) combines cooling gel technology with an open-cell foam structure, so you get both the gel's heat draw-down and airflow that closed-cell gel memory foam lacks

• For genuine all-night cooling, look for open-cell foam plus gel plus additional cooling technology (like reversible summer/winter ticking or PolarBands®), not gel alone

What Is Regular Memory Foam?

Regular memory foam is a viscoelastic polyurethane foam that softens under body heat and pressure to contour to your body shape, then slowly returns to its original shape when pressure is removed. It was originally developed by NASA in the 1960s and became a mainstream mattress material in the early 2000s thanks to its pressure-relief and motion-isolation properties.

Key characteristics of regular memory foam:

• Contouring: softens under body heat and weight; cradles pressure points at hips, shoulders and lower back

• Slow response: 3 to 5 seconds to return to original shape after pressure is removed

• Motion isolation: absorbs partner movement effectively, so one person moving doesn't disturb the other

• Density: quality memory foam typically 50 to 80 kg/m³ (higher than standard polyurethane support foam)

• Trade-off: closed-cell structure limits airflow, so traditional memory foam can retain body heat during sleep

• Common in: mid-market to premium mattresses, often layered on top of a firmer support foam core

Regular memory foam suits sleepers who want deep contouring, pressure relief and strong motion isolation, and who don't run hot at night or who use additional cooling accessories (breathable ticking, mattress protector, room cooling).

What Is Gel Memory Foam?

Gel memory foam is regular memory foam with cooling gel added to reduce heat retention, either as gel beads mixed into the foam during manufacture, gel swirls integrated through the foam, or a gel layer bonded to the top surface. The gel is engineered to draw heat away from the body during the initial hours of sleep and provide a cooler-to-touch feel than standard memory foam.

Three main methods manufacturers use to integrate gel:

• Gel beads: small gel-filled beads distributed evenly through the foam during manufacture. Consistent cooling across the surface

• Gel swirls: gel patterns swirled through the foam, creating cooling channels visible in the foam cross-section

• Gel surface layer: a distinct gel layer bonded to the top of the foam, closest to the sleeper. Delivers the most immediate cool-touch feel but only cools the top surface

Benefits and trade-offs:

• Benefit: initial cool-touch feel and 2 to 3 hours of active cooling as the gel absorbs body heat

• Trade-off: once the gel reaches thermal equilibrium with body temperature, active cooling stops

• Trade-off: gel infusion alone doesn't solve airflow; the underlying foam can still be closed-cell

• Best when combined with open-cell foam construction (like our Kloudcell®) for both heat draw-down and airflow through the foam layers

Gel Memory Foam vs Regular Memory Foam

Regular memory foam and gel memory foam share the same viscoelastic contouring, motion isolation, and support properties. The differences sit in cooling, initial feel, and price. Here's how they stack up across the factors most Australian buyers actually care about.

The takeaway: gel doesn't change how the foam supports your body; it changes how the foam handles heat. If you don't sleep hot, gel doesn't add much value. If you do sleep hot, gel helps but only for the first few hours unless paired with other cooling technology.

Does Gel Memory Foam Actually Sleep Cooler?

Gel memory foam does sleep cooler than regular memory foam for the first 2 to 3 hours of sleep, but the difference narrows significantly across a full 7 to 8 hour night. The gel reaches thermal equilibrium with body temperature within a few hours, after which active cooling stops. For genuinely cool sleep across the whole night, gel infusion alone isn't enough; you also need airflow through the foam, a breathable cover, and ideally additional cooling technology.

What actually happens across a night:

• First 2 to 3 hours: measurable cooling difference vs regular memory foam. Gel actively draws heat away from the body

• Hours 3 to 8: cooling effect narrows as the gel warms to body temperature. Sleeper temperature approaches what you'd feel on regular memory foam

• Marketing overclaims to watch for: many gel memory foam mattresses market "all-night cooling" but the physics of gel doesn't support continuous cooling from a single layer

• What actually delivers whole-night cooling: open-cell foam construction (for constant airflow) plus gel (for initial cooling) plus additional cooling elements like reversible summer ticking or targeted heat-release technology

Our Cooling Gel Kloudcell® (used in the Koala Plus Mattress) combines cooling gel with an open-cell foam structure, so you get both the gel's initial heat draw-down and the open-cell airflow that keeps working after the gel has equalised. For genuinely hot sleepers, our Koala Polar+ adds PolarBands® (graphite strips engineered for 8+ hours of continuous heat release) on top of Cooling Gel Kloudcell® for multi-technology night-long cooling.

Which One Should You Choose?

Choose regular memory foam if you're a cool sleeper who wants contouring and motion isolation without paying for cooling you don't need. Choose gel memory foam if you're a warm sleeper who overheats on traditional memory foam or if you want the cool-touch feel when getting into bed. For genuinely warm sleepers, Australian summers, or all-night temperature regulation, look beyond gel-only options to multi-technology cooling stacks.

Match the technology to how you sleep:

• Cool sleepers or budget-conscious buyers: regular memory foam works, or our standard Kloudcell® in the Koala SE or Koala Mattress delivers open-cell airflow without the gel premium

• Warm sleepers wanting initial cool-touch and 2 to 3 hours of cooling: gel memory foam works, or our Cooling Gel Kloudcell® in the Koala Plus adds open-cell airflow to the gel benefit

• Hot sleepers wanting all-night cooling: look for multi-technology cooling stacks. Our Koala Polar+ combines Cooling Gel Kloudcell® with PolarBands® for 8+ hour continuous heat release

• Premium plush cooling for luxury builds: our Koala Luxe takes a different approach with Copper Kloudcell® and Phase Change Material for luxury-plush temperature regulation

The choice isn't gel vs regular in isolation; it's picking the cooling approach that matches how hot you actually sleep and how long you need cooling to last through the night.

Explore Our Cooling Kloudcell® Mattress Range

Our Koala mattress range spans four different cooling technologies across 5 models, from standard airflow-focused Kloudcell® to specialist multi-layer cooling stacks. All feature Kloudcell®, a durable, high-density open-cell foam, plus CertiPUR-US® certified foam, Zero Disturbance® technology, our 120-night trial, and 10-year warranty. Explore the range:

• Koala Plus Mattress: flippable Medium-Firm/Medium, 28 cm total height with 8 cm Kloudcell® (60% more than SE), Cooling Gel Kloudcell® flippable comfort layer, reversible summer/winter topper (CoolThread™ / Organic Cotton), and 5-zone support with bamboo charcoal edge support. Our gel-cooling option.

• Koala Mattress: the flippable Firm/Medium-Firm original, 25 cm total height with 7 cm Kloudcell® (40% more), zip-off topper with carbon-zero TENCEL™ Lyocell ticking, 3-zone charcoal marble dyed support. Open-cell airflow without gel infusion.

• Koala SE Mattress: our entry option, Medium firmness, 23 cm total height with 5 cm Kloudcell® and TENCEL™ Lyocell breathable cover.

• Koala Luxe Mattress: our plushest, 31 cm total height with 9 cm Kloudcell® (80% more), 3 cm zip-off quilted topper with Australian Cashmere blend and Phase Change Material, Copper Kloudcell® comfort layer, and 7 targeted high-density support zones. A different premium cooling approach.

Browse our full premium mattress range for all firmness levels and cooling technology options.