Comfort IQ™ · Scored on what actually matters
SERTA® iComfort® PRO 14.5″ Firm Euro Top Latex Mattress — Performance & Feel
Comfort IQ™ scores eight dimensions 0–10 from National Mattress's in-house testing + construction — the same scale on every model, so two beds compare on what actually matters. Results vary by body type, base, and room temperature.
The Serta iComfort PRO 14.5″ Firm Euro Top Latex sleeps cooler than almost any all-foam bed, peaking at just 32.3°C in our in-house testing. A doubled natural-latex comfort layer gives it that breathability plus an effortless, springy recovery, all tuned to a medium-firm 6/10 feel that suits back, stomach, and combination sleepers. The Euro top adds a touch of plush comfort on top of that supportive, breathable latex. For sleepers who run warm and want a balanced, cool, lively medium-firm bed, this is a versatile and well-built choice.
Performance Scores
An 8.9 overall built on standout cooling and lively latex recovery, with strong alignment; the soft spot is a foam-border edge that gives under a seated load.
Responsiveness10.0
Lifts with you the instant you move — reposition without fighting a sink.
Durability10.0
Natural latex over a dense core — the longest-lasting material in mattresses.
Cooling9.6
Breathable latex + a CoolFeel Pro cover keep the surface in check all night.
Spinal Support9.0
Medium-firm core holds the hips level while latex fills the lumbar curve.
Pressure Relief8.6
Four inches of latex cradle the shoulders and hips while still feeling supportive.
Edge Support8.4
Sleep the full width without roll-off; softer than a coil bed when you sit.
Motion Isolation7.4
The thick core absorbs most partner movement; springy latex passes a hair more.
Off-Gassing 10.0 Brand 8.8 Sleep Trial 10.0 Value 6.6
In National Mattress's in-house Comfort IQ analysis, the iComfort PRO Firm Latex scores: Overall 8.9/10, Cooling 9.6/10, Pressure Relief 8.6/10, Motion Isolation 7.4/10, Edge Support 8.4/10, Responsiveness 10.0/10, Spinal Support 9.0/10, Durability 10.0/10.
Best For
Hot sleepers who want a foam feel Cooling 9.6 — latex breathes far better than memory foam, so you get the surface conforming without the heat.
Combination sleepers Responsiveness 10.0 — the latex top recovers instantly, so changing position through the night is effortless.
Back & stomach sleepers Spinal Support 9.0 — the medium-firm core keeps the hips from dropping out of a neutral line.
Buy-it-once, low-chemistry shoppers Durability 10.0 + Off-Gassing 10.0 — natural latex outlasts memory foam and is nearly odorless from the box.
Considerations
Softer seated edge (Edge Support 8.4) The all-foam border gives more than a coil-encased bed when you sit on the side to dress — the lying surface stays usable to the rim, but the seated edge is not bench-firm.
A touch more motion than memory foam (Motion Isolation 7.4) Latex is springier by nature, so it passes a little more movement than a memory-foam sibling — still good-to-very-good, but the most restless partner may notice.
How It Performs — The Measured Detail
Feel & Firmness · 6/10 Firm
The iComfort PRO lands at a medium-firm 6 out of 10 — firm enough to support, with a four-inch natural-latex top that contours and then springs back rather than swallowing you. It reads supportive and buoyant underfoot, not sinky, which is why it suits such a wide range of sleepers.
Cooling 9.6
The iComfort PRO Firm Latex runs cooler than most foam beds, holding a peak surface temperature in the 30.3–33.1°C range with the overnight rise over baseline landing across the 8.3–11.1°C band. Two things drive it: a CoolFeel Pro fabric cover with anti-microbial fibre, and natural latex, whose open structure breathes and sheds heat in a way dense memory foam simply cannot — impressive for a coil-free build with no spring layer to ventilate.
Pressure Relief 8.6
At a medium 6/10 the iComfort PRO sits in the pressure-relief sweet spot, with sinkage settling in the 1.63–2.64 inch range. Despite the medium-firm tuning, the four-inch latex comfort layer produces a deep, body-hugging cradle that spreads load smoothly across the shoulders and hips — real contour from a surface that still feels supportive, so side sleepers get joint relief while back and combination sleepers get support without sinking.
Motion Isolation 7.4
Movement stays largely on one side here: transferred motion measures in the 0.84–4.13 m/s² range, with the surface settling within the 0.84–1.05 second band, so the thick foam core soaks up most of a partner's motion before it crosses the bed. Being honest, it reads a hair higher than its memory-foam siblings — the doubled latex layer is inherently springier and passes a touch more — but it still lands firmly in the good-to-very-good tier.
Edge Support 8.4
The border is all foam with no coil rail, and edge sinkage in the 4.12–6.18 inch range reflects that — the perimeter softens under concentrated weight, so you feel the give if you sit on the edge to dress. The reassuring part is the lying behavior: the sleeping surface stays usable right out to the edge without a roll-off feeling, so you can use the full width of the bed.
Responsiveness 10.0
This is latex at its best — lively and quick to recover. Bounce total travel measures in the 5.86–10.60 inch range, ahead of the typical foam bed, and recovery confirms it, with complete recovery in the 0.79–4.59 second band landing at the fast end. The surface lifts with you the moment you move instead of trapping you in a slow-filling dent, so repositioning is effortless and combination sleepers stay free all night.
Off-Gassing 10.0
Off-gassing is essentially a non-issue, clearing in under 7 hours. The comfort layer pairs natural latex with natural-fibre layers — materials that are very nearly odorless from the moment you unpackage them, with none of the petrochemical smell fresh memory foam can give off — and the foams are CertiPUR-US certified, so any faint settling scent disappears fast. Air it a day and it is ready for the bedroom.
Sleep Position & Body Weight Fit
The medium-firm 6/10 build is a true all-rounder. Back and stomach sleepers get the level, neutral support they need; side sleepers get genuine shoulder-and-hip contour from the four-inch latex top; combination sleepers benefit from the instant recovery. Average and heavier bodies are well-supported by the dense core, while lighter sleepers still feel the latex cradle rather than a hard slab.
At a Glance
Type · Foam (all-latex) Firmness · 6/10 Firm Height · 14.5″ Comfort layer · 4″ natural latex Fiberglass-free CertiPUR-US certified Made in · Canada Trial · 365 nights Delivery · Free on orders over $199
Full construction, per-size dimensions and layer details are in the product description above. View 365-night trial details.
Frequently Asked
Does the Serta iComfort PRO Firm Latex sleep hot?
No — it is one of the cooler all-foam beds we test, peaking at 32.3°C. Natural latex breathes far better than memory foam, and the CoolFeel Pro cover adds anti-microbial cooling fibre, so the surface stays in check even without a coil layer to circulate air.
Is the iComfort PRO Firm Latex good for couples and partner movement?
Mostly yes. Motion isolation scores a solid 7.4 — the thick foam core absorbs most of a partner's movement before it crosses the bed. Because latex is naturally springier than memory foam, it passes a hair more motion than a memory-foam bed, so a very restless partner may occasionally notice.
Is the iComfort PRO Firm Latex too firm for side sleepers?
No. At a medium-firm 6/10 it is firmer than a plush bed, but the four-inch latex top still cradles the shoulders and hips for an 8.6 pressure-relief score. Side sleepers get genuine joint relief, while back and stomach sleepers get the support they need from the same surface.
Can I try the iComfort PRO Firm Latex at home before committing?
Yes — it comes with a 365-night sleep trial, a full year to live with it through every season. A latex bed feels different once your body settles in over a few weeks, and the trial gives you time to be sure. Delivery is free on orders over $199.
How long will the iComfort PRO Firm Latex last?
A long time — it earns a perfect 10.0 for durability. Natural latex is the longest-lasting material in mattresses, outlasting even high-density memory foam, and it sits over a dense Serta Foam Core with no coils to fatigue. Serta backs it with a 10-year warranty.
