Comfort IQ™ · Scored on what actually matters
CHIROFOAM™ XF 10″ Extra-Firm Memory Foam 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 CHIROFOAM XF 10″ surprises with a 9.0 / 10 edge — rare for an all-foam bed. Its extra-firm 11 / 10 build stays solid and supportive right out to the perimeter, and the same dense foams earn a near-perfect 9.7 durability. This is a deliberately rigid, no-sink platform for back, stomach and heavier sleepers who want a strict, level surface that lasts. If you want a firm, all-foam bed with a stable edge and standout longevity, the Chirofoam XF is built to hold up year after year.
Performance Scores
An exceptionally firm, long-lasting foam platform with a standout edge for its category; cooling and plush pressure relief are its honest soft spots.
Durability9.7
High-density foams hold the firm feel for years
Edge Support9.0
Holds the rim firmer than the typical foam bed
Responsiveness8.4
Firm platform that still releases when you move
Spinal Support8.2
Extra-firm core holds the spine dead level
Motion Isolation7.9
Foam absorbs a partner's movement, no springs to carry it
Cooling6.7
Neutral rather than cool; treat it as a warm sleeper
Pressure Relief5.8
Shallow cradle — the honest trade for extra-firm
Off-Gassing 8.5 Brand 5.5 Sleep Trial 10.0 Value 5.2
In National Mattress's in-house Comfort IQ analysis, the Chirofoam XF scores: Overall 7.7/10, Cooling 6.7/10, Pressure Relief 5.8/10, Motion Isolation 7.9/10, Edge Support 9.0/10, Responsiveness 8.4/10, Spinal Support 8.2/10, Durability 9.7/10.
Best For
Sleepers who want a genuinely firm bed — at 11 / 10 this is one of the firmest foam mattresses on the floor, with almost no give.
Back and stomach sleepers — the rigid platform and 8.2 spinal support hold the hips from sinking and keep the spine flat.
Anyone who sleeps and sits near the edge — the 9.0 edge support is unusually confident for an all-foam build.
Buyers who want a bed that lasts — the 9.7 durability comes from high-density foam, the layer that wears first.
Considerations
Firm pressure relief (5.8) — only an inch of memory foam sits over a dense core, so dedicated side sleepers may find the shoulder and hip relief too taut.
Runs neutral, not cool (6.7) — an all-foam core holds more body heat than a coil bed; hot sleepers should treat it as neutral.
Extra-firm is a strong preference — at 11 / 10 this is firmer than most sleepers want; if you are unsure between firm and medium, sleep on it during the trial.
How It Performs — The Measured Detail
Feel & Firmness · 11/10 Extra Firm
The Chirofoam XF is built rigid. A single inch of memory foam tops a dense support core, so the surface stays taut and on-top rather than cradling — you lie on this bed, not in it. That extra-firm character is the whole design intent: a no-sink platform for sleepers who actively want maximum support.
Cooling 6.7
Temperature is one of this bed's softer points, and the Chirofoam XF runs a touch warm. Peak surface temperature lands in the 30.2-33.0 °C range with a rise over baseline of 8.2-11.0 °C, settling back into the 25.2-29.4 °C range overnight — respectable for an all-foam build but not a specialty cooling pick. With no spring layer venting air through the middle, the breathable cotton-topped cover and the foam itself carry the whole cooling load. Hot sleepers should treat this one as neutral.
Pressure Relief 5.8
This is an extra-firm mattress, and pressure relief is its most honest trade-off. Sinkage stays in the 1.30-2.31 inch range, on the shallow side, because only an inch of conforming memory foam sits over a dense support core, so the surface spreads load rather than enveloping you. The result is a balanced cradle — noticeable contour but a gentle one — that suits back and stomach sleepers and anyone who dislikes sinking. Dedicated side sleepers may find the shoulder and hip relief firmer than they would like.
Motion Isolation 7.9
Share this bed with a partner who tosses and turns and an all-foam build is the best architecture for keeping their movement off your side. Peak acceleration reads in the 2.00-3.65 m/s² range and motion settles in the 0.50-0.71 second window, comfortably inside the better band and miles ahead of spring beds that broadcast every shift. With no coils to act as a transmission line, the dense foams absorb a roll or a getting-up jostle right where it happens, and the surface stops moving quickly rather than rippling on.
Edge Support 9.0
Here is the pleasant surprise for an all-foam bed. Edge sinkage lands in the 2.50-4.56 inch range, with this build holding at the firm end of it — firmer than the typical foam edge and a genuine strength on the Chirofoam XF. Lying-support near the perimeter tests as good, so the full width is usable for sleep. The extra-firm foam simply does not collapse as readily when you sit or sleep right on the border. You will still feel more give than a coil-edged bed at the very rim, but among foam mattresses this is one of the more confidence-inspiring edges going.
Responsiveness 8.4
Do not expect a springy push from this extra-firm foam bed; the feel is steady and grounded. Total bounce travel lands in the 6.00-10.73 inch range, consistent with foam doing the work rather than coils. The reassuring number is recovery: complete response time settles in under 3.55 seconds and mostly-settled in under 1.70 seconds, so while you get a firm, supportive platform underfoot rather than a trampoline, the foam still releases promptly when you reposition. Changing sleep positions never feels like fighting quicksand.
Off-Gassing 8.5
The Chirofoam XF is built on CertiPUR-US certified foams, independently tested for low VOCs, and manufactured right here in Ontario rather than shipped compressed from overseas. Because it is made locally and reaches you within days instead of sitting boxed for months, the off-gassing period clears in 12-24 hours against a field that typically needs far longer. Initial odor rates low, and the cotton-topped cover keeps the build breathable. Unbox it in a ventilated room and any faint new-foam scent fades within a day or so.
Sleep Position & Body Weight Fit
The extra-firm 11 / 10 feel is built for back and stomach sleepers, and for heavier sleepers who sink too far into softer beds — the rigid core holds the spine neutral where a plush mattress would let the hips drop. Average and heavier sleepers get assertive, no-sag support. Side sleepers, especially lighter ones, will likely find it too firm at the shoulder and hip, since there is little foam to give way at the pressure points.
At a Glance
Type · Foam Firmness · 11/10 Extra Firm Height · 10″ Comfort layer · 1″ Fiberglass-free CertiPUR-US certified Made in · Canada Trial · 365 nights Delivery · Free on orders over $199
Full construction, per-size dimensions and coil counts are in the product description above. View 365-night trial details.
Frequently Asked
How firm is the Chirofoam XF really?
Very — it rates 11 / 10, one of the firmest foam beds on the floor. A single inch of memory foam tops a dense support core, so you lie on the surface rather than sinking in. It is built for sleepers who actively want a rigid, no-sink platform.
Does the Chirofoam XF have good edge support?
Yes, and it is a standout for an all-foam bed — 9.0 / 10. Edge sinkage lands in the 2.50-4.56 inch range at the firm end, so the extra-firm foam holds the rim better than most foam mattresses. You can sit or sleep right by the seam without much give.
Is the Chirofoam XF good for side sleepers?
Less so. It scores 5.8 / 10 for pressure relief because only an inch of memory foam sits over a dense core, so the shoulder and hip cushioning is firm. Back, stomach and heavier sleepers will love the support; dedicated side sleepers usually want a softer model.
Can I try the Chirofoam XF at home before committing?
Yes. It comes with a 365-night sleep trial — a full year, which matters on an extra-firm bed because adjusting to a firmer feel takes weeks. If it is not right, return it for a refund or exchange it for a different model. Delivery is free on orders over $199.
How long will the Chirofoam XF last?
It scores 9.7 / 10 for durability. The comfort layer is genuine high-density foam rather than the cheap low-density material that ruts within a couple of years, over a high-density support core engineered not to break down. Chirofoam backs it with a 10-year warranty.
