Quick Answer: The Sofia is a 14-inch Canadian mattress with copper-infused foam for heat transfer and antimicrobial benefits. Medium feel suits most sleep positions. Queen is $1,310.79 at Mattress Miracle Brantford. The copper benefits are real, not just marketing, but the feel is what you should test in person.
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What Is the Sofia Mattress?
The Sofia is a 14-inch mattress made by Sleep In, a Canadian manufacturer. The defining feature is copper-infused foam in the comfort layer. Sleep In positions this as a luxury offering, and the 14-inch profile gives it a presence in the room that thinner mattresses lack.
We carry it at Mattress Miracle because it fills a specific niche: buyers who want the pressure-relieving properties of foam with active heat management and antimicrobial function, without moving into the Restonic Revive price tier. It is not the cheapest option in our lineup, and it is not meant to be.
Does Copper in a Mattress Actually Do Anything?
This is the question we get most often about the Sofia, and it deserves a straight answer.
Yes, copper does two real things in a mattress.
First, copper has natural antimicrobial properties. Copper ions disrupt the cell membranes of bacteria and fungi on contact. When copper is infused into foam, it reduces the growth of bacteria and moulds within the foam layer over time. This helps the mattress stay fresher and odour-free longer than a non-copper alternative. Copper has been used in medical settings for antimicrobial purposes for this exact reason.
Second, copper is an excellent thermal conductor. It moves heat away from your body faster than standard foam, which is one of the primary complaints about memory foam: it traps heat. Gel-infused foams help with this too, but copper conducts heat more effectively than gel alone. If you tend to sleep warm, this is a meaningful benefit.
What copper does not do: it does not keep you cold. It removes excess heat from the contact surface, which is different. If you are looking for active cooling with a cool-to-touch sensation, mattresses with phase-change materials or open-cell latex do more. The copper in the Sofia manages heat; it does not aggressively cool.
Copper and Sleep: What the Research Shows
Copper has been studied extensively in medical contexts for its antimicrobial properties. A study published in the American Journal of Infection Control documented copper's effectiveness at reducing microbial contamination on surfaces in clinical environments. Copper-infused textiles and foams have been applied to sleep products based on this same mechanism. The thermal conductivity benefit is physics: copper's thermal conductivity is approximately 400 W/m/K1, significantly higher than standard polyurethane foam, which means copper particles disperse body heat across a wider area of the mattress instead of trapping it at the surface. These are verified properties, not marketing claims.
What Is Inside
The Sofia is 14 inches in total profile. The construction layers from top to bottom:
Copper gel foam comfort layer: The defining layer. Copper-infused gel foam conforms to the body for pressure relief while managing heat through both the copper and gel components. Medium feel, with enough give for shoulder and hip relief for side sleepers and enough resistance to support back sleepers.
DuroLast foam core: The support base. DuroLast is a high-density foam designed for long-term shape retention. The goal is that the mattress maintains its feel and support structure for years of use rather than developing body impressions early.
Sofia Specs at a Glance
- Manufacturer: Sleep In (Canadian)
- Height: 14 inches
- Type: Foam (copper gel comfort + DuroLast core)
- Comfort layer: Copper-infused gel foam
- Support core: DuroLast high-density foam
- Firmness: Medium
- Benefits: Antimicrobial copper, heat transfer, pressure relief
Who It Suits
The Sofia Tends to Work Well For
- Warm sleepers: The copper thermal conductivity actively moves heat away from the sleep surface. Not a miracle solution for very hot sleepers, but genuinely better than standard foam.
- Allergy-conscious buyers: The antimicrobial copper reduces bacterial and fungal growth within the foam, which matters for people with allergies or sensitivities to dust mites and moulds.
- Side sleepers: The medium feel provides enough give at the shoulder and hip to prevent pressure points.
- Back sleepers: Medium firmness supports the lumbar curve without the hips sinking excessively.
- Buyers who want a substantial mattress profile: At 14 inches, this is a mattress that looks and feels premium on the bed.
Where to look elsewhere: stomach sleepers often do better on a firmer surface. Very heavy sleepers may need more robust coil support than an all-foam mattress provides. If you want the antimicrobial and copper benefits in a hybrid format with coils, our Cloud Vapor Copper Gel mattress is worth comparing. For a traditional foam feel without the copper, the Ortho Care Therapeutic is available at a lower price point.
Pricing and Sizes
| Size | Price (CAD) |
|---|---|
| Twin | $1,129.99 |
| Double | $1,186.49 |
| Queen | $1,310.79 |
| King | $1,570.69 |
Available for Ontario-wide delivery. For Brantford and surrounding areas, we offer white-glove delivery including setup and old mattress removal. View all mattresses or call (519) 770-0001 to confirm availability.
Our Honest Take
The Sofia is a well-made foam mattress with a legitimate differentiator in the copper infusion. We appreciate that Sleep In does not overstate what copper does. It manages heat, it reduces bacteria. Those are the claims, and they hold up.
The medium feel is genuinely versatile. Most sleep positions work on it, which makes it a reasonable choice for households where two people with different sleep positions share a mattress. The 14-inch profile gives it a quality feel that the price supports.
The honest caveat: it is an all-foam mattress, which means no pocket coil motion isolation. If your partner moves a lot at night, a hybrid with individually wrapped coils will isolate that movement more effectively. The foam does absorb some movement, but not as much as a coil system. Worth testing together if you share a bed.
Frequently Asked Questions
Does copper in a mattress actually work?
Yes. Copper has two documented properties relevant to sleep: antimicrobial action that reduces bacterial and fungal growth in the foam, and thermal conductivity that moves heat away from the sleep surface. These are verified material properties, not marketing. The antimicrobial benefit persists for the life of the mattress because copper is infused into the foam, not coated on the surface. The US EPA registered copper alloys as the first solid antimicrobial metal surfaces2 in 2008, based on testing that found copper kills over 99 percent of certain bacteria on hard surfaces when cleaned regularly.
Is the Sofia mattress good for hot sleepers?
Better than standard foam. The copper infusion conducts heat away from the contact surface more effectively than gel alone, and significantly better than non-infused memory foam. It will not feel cold to the touch, but most warm sleepers notice a difference compared to standard foam alternatives. Very heavy sweaters may want to consider a mattress with phase-change materials or an open-cell latex layer for more aggressive cooling.
Can I try the Sofia in person at Mattress Miracle?
Yes. It is available at our showroom at 441 1/2 West Street, Brantford. Call (519) 770-0001 to confirm floor availability. We recommend testing for at least five to ten minutes in your usual sleep position, particularly if you are sensitive to warmth, as that is the experience you cannot replicate without lying down.
How does the copper antimicrobial benefit compare to a mattress protector?
They work differently. A mattress protector creates a physical barrier on the surface that prevents fluids and allergens from entering the mattress. Copper in the foam reduces bacterial growth within the foam itself. Both are useful, and they are complementary. We still recommend using a mattress protector with the Sofia to protect the surface, particularly if you have allergies.
How long does the copper benefit last in the foam?
The copper is infused into the foam material itself, not coated on the surface, so it does not wear off or wash out. The antimicrobial and thermal properties persist for the life of the mattress. This is what distinguishes copper-infused foam from copper-coated fabrics, which can lose effectiveness over time.
Why Copper Infusion Matters in Ontario Winters
Ontario winters mean months of dry indoor air and closed windows, which can elevate concentrations of dust mites and indoor allergens. A mattress with built-in antimicrobial properties in the foam is a reasonable choice for this climate. We have had Brantford customers with allergies and sensitivities specifically mention the Sofia because the copper-infused foam reduces one more source of allergen accumulation in the bedroom. Combined with a good mattress protector, it is a practical option for allergy management.
Try the Sofia at Mattress Miracle Brantford
We are a family-owned mattress store helping Brantford sleep better since 1997. The Sofia is on our floor and worth testing in person. Come in and feel the difference the copper foam makes.
441 1/2 West Street, Brantford, Ontario
Mon-Wed 10-6 • Thu-Fri 10-7 • Sat 10-5 • Sun 12-4
Related Reading
- Ortho Care Therapeutic Mattress Review
- Restonic ComfortCare Dalton & Albany Review
- Shop Our Mattress Collection
- Foam Mattresses Canada
- Sleep In Lauren Euro Top Review: Copper Gel Flagship at $1,695
- Titan Plus Luxe Mattress Review for Canadian Buyers: Is It Worth the Cross-Border Purchase?
- Naturepedic Mattress Canada Review: Certifications, Models, and Pricing
Sources
- Copper Development Association. Atomic Properties of Copper. Thermal conductivity and material properties.
- US Environmental Protection Agency. Copper Alloy Surfaces. EPA registration of copper alloys as antimicrobial surfaces (2008).
- CertiPUR-US. What is Certified Foam? Consumer standards for foam emissions, chemistry, and durability.