Quick Answer: Polysleep and Sleep In are both genuinely Canadian manufacturers. Polysleep makes its own antimicrobial foam in-house in Montreal; Sleep In builds flippable hybrids with 1,322 pocket coils. The choice is construction philosophy: all-foam with antimicrobial certification (about $1,299 queen) or a dual-sided coil hybrid ($1,099 to $1,499 queen). Both come from independent Canadian companies.
In This Guide
Reading Time: 9 minutes
Two Canadian Paths
Most of the brands in our Sleep In comparison series are American companies, private equity acquisitions, or subsidiaries of multinational corporations. Polysleep is none of those things, and that deserves acknowledgement.
In 2016, Jeremiah Curvers was diagnosed with a double herniated disc that left him immobile for three months. Spending that much time in bed, uncomfortable and frustrated, he decided to build a better mattress. He founded Polysleep in Montreal, and by 2018 had left his digital agency career to run the company full time.
Polysleep grew 882% between 2017 and 2019, earning the 42nd spot on the 2020 Canadian Startup List. The company became the third-largest foam mattress brand in Quebec. All manufacturing happens in Montreal, and Polysleep produces its own foam in-house rather than sourcing from third-party suppliers.
That is a legitimate Canadian success story, and we are not going to pretend otherwise.
Sleep In took a different path. Rather than specializing in foam production, Sleep In focused on hybrid construction: combining individually pocketed coils with foam comfort layers in a flippable, dual-sided design. Both companies are Canadian. Both are independent. They simply disagree about the best way to build a mattress.
Brad, Owner, 40+ years of experience: "I like when I can compare two Canadian companies honestly. Polysleep is doing something real in Montreal. They make their own foam, they control their supply chain, and they are not owned by a hedge fund or a multinational. The comparison here is not about who is more trustworthy. It is about foam versus hybrid construction, and which engineering approach gives you a better mattress for your money."
8 min read
The Antimicrobial Question
Polysleep's signature claim is antimicrobial foam tested to ISO 20743:2013 standards. The company states this foam "significantly reduces the growth of bacteria, germs, and dust mites" compared to standard polyurethane foam.
ISO 20743 is a real international standard for measuring antimicrobial activity in textile products. This is not a made-up certification, and Polysleep deserves credit for referencing an actual testing standard rather than inventing marketing language.
The question worth asking is whether antimicrobial foam changes your sleep experience in a meaningful way.
Antimicrobial Treatments in Mattresses: A 2021 review in the International Journal of Environmental Research and Public Health examined antimicrobial treatments in bedding products. The review found that while antimicrobial agents can reduce bacterial colonization on treated surfaces, the clinical significance for healthy sleepers is limited. Mattress hygiene, the review concluded, is more effectively maintained through regular cleaning, mattress protectors, and proper ventilation than through antimicrobial material treatments. For individuals with compromised immune systems or severe dust mite allergies, antimicrobial mattress materials may offer measurable benefits.
For most healthy sleepers, a quality mattress protector (which creates a physical barrier against moisture, bacteria, and dust mites) provides comparable or superior hygiene benefits to antimicrobial foam treatment. A mattress protector also has the advantage of being washable and replaceable, while antimicrobial foam treatments diminish over the life of the mattress as the agent breaks down.
This does not make Polysleep's antimicrobial foam worthless. It makes it a feature that matters more for some sleepers than others. If you have dust mite allergies or immune system concerns, the antimicrobial treatment is a meaningful differentiator. If you are a healthy sleeper who uses a mattress protector, the benefit is smaller than the marketing suggests.
Foam-Only vs Hybrid Construction
This is the fundamental divide between Polysleep and Sleep In, and it matters more than any other specification on the page.
Polysleep builds all-foam mattresses. The company produces its own viscoelastic hybrid foam (hybrid referring to the foam blend, not a coil system) with ventilation channels for airflow. There are no pocketed coils, no innersprings, no metal support system of any kind. The foam does everything: comfort, support, temperature management, and edge stability.
Sleep In builds hybrid mattresses with 1,322 individually pocketed coils in every queen, combined with foam comfort layers on both sides of a flippable design. The coils handle structural support and airflow. The foam handles comfort and pressure relief. Each system does one job well instead of one system doing every job.
What This Means for Durability
Foam compresses under sustained load. This is physics, not opinion. Your body applies roughly the same pressure to the same areas of the mattress every night. Over months and years, foam develops permanent impressions where your shoulders and hips rest. In an all-foam mattress, once the foam in the support layer compresses, there is nothing below it to maintain the mattress profile.
In a hybrid, the pocketed coil system retains its structural integrity independently of the foam layers above it. Even as comfort foam shows some impression over years of use, the coils continue holding the mattress shape and supporting your weight. The support system does not fatigue at the same rate as the comfort system.
Sleep In's flippable design doubles this advantage. Two sleeping surfaces mean half the compression cycles on each side. A single-sided foam mattress absorbs 3,650 nights of body weight over ten years. A flippable hybrid distributes that across two surfaces and a coil system that does not compress the way foam does.
Dorothy, Sleep Specialist: "I have had customers come in who love the idea of Polysleep because it is Canadian and the antimicrobial feature sounds appealing. I tell them both of those things are legitimate. Then I ask them to lie on a Sleep In and feel the coil support underneath the foam. Most of them immediately notice the difference. Foam on top of coils feels different from foam on top of more foam, and for most body types, the coil version provides better long-term support."
What In-House Foam Production Actually Means
Polysleep produces its own foam in its Montreal facility. This is genuinely unusual. Most mattress companies, including many large brands, purchase foam from third-party suppliers like FXI, Carpenter, or Woodbridge. Producing foam in-house gives Polysleep direct control over foam formulation, density, and quality.
That control is valuable. It means Polysleep can adjust foam density, firmness, and antimicrobial treatment without negotiating with external suppliers. It also means the company has a deeper understanding of its own materials than a brand that simply specifies foam grades from a catalogue.
Sleep In does not produce its own foam. It specifies foam from suppliers, which is the standard approach in the hybrid mattress industry. What Sleep In does control is the complete assembly: the coil system, the foam layering, the dual-sided construction, and the overall build quality. The coil system itself, which is the structural core of a Sleep In mattress, represents a different kind of manufacturing investment than foam production.
Both approaches have merit. Polysleep's in-house foam production gives it control over a critical material. Sleep In's hybrid approach gives it a structural system (pocketed coils) that foam production alone cannot replicate.
Side-by-Side Specifications
| Feature | Polysleep (Queen) | Sleep In Hybrid (Queen) |
|---|---|---|
| Construction | All-foam (proprietary blend) | Hybrid (foam + pocketed coils) |
| Coil Count | 0 | 1,322 |
| Antimicrobial | Yes (ISO 20743 certified) | No (use mattress protector) |
| Flippable | No | Yes (dual-sided) |
| Price (Queen) | $1,299 CAD | $1,099 - $1,499 CAD |
| Made In | Montreal, Quebec | Canada |
| Foam Production | In-house | Third-party sourced |
| Warranty | 10-year limited | Manufacturer warranty |
| Company Status | Independent Canadian (Montreal) | Independent Canadian |
| Direct Sales (2026) | Discontinued (retailer-only) | Through authorized retailers |
The 2025 Availability Shift
Something important happened in 2025: Polysleep stopped selling mattresses directly through its website. The company shifted to a retailer-only distribution model, meaning you now need to find an authorized third-party retailer to purchase a Polysleep mattress.
This is a significant change for a brand that built its reputation as a direct-to-consumer company. The shift may reflect business model adjustments, margin pressures, or a strategic pivot to brick-and-mortar retail. Whatever the reason, it changes the buying experience for Canadian customers who previously valued Polysleep's direct online ordering.
For Brantford-area shoppers, this means you need to check which local retailers carry Polysleep. Sleep In is available at Mattress Miracle, 441 1/2 West Street, where you can test it any day of the week. The Dream Catcher is one of the flippable models on the floor to compare.
Testing in the Brantford Area: As of early 2026, Polysleep's authorized retailer network in southwestern Ontario is limited compared to its Quebec home base, where the brand has stronger distribution. If you are specifically interested in Polysleep, check their website for the nearest authorized retailer. Sleep In is available at Mattress Miracle in Brantford, where our family team can walk you through the hybrid construction and let you test both sides of the flippable design.
Who Each Mattress Actually Suits
This is one of the few comparisons in our series where both brands deserve genuine respect. Polysleep is a real Canadian manufacturer doing interesting work with foam technology. Sleep In is a real Canadian manufacturer doing proven work with hybrid construction. Neither company is a subsidiary of a multinational. Neither went through bankruptcy. Neither has an F BBB rating.
The choice is about engineering philosophy, not about corporate integrity.
Polysleep Might Be Right If You:
- Specifically want antimicrobial foam (dust mite allergies, immune system concerns)
- Prefer an all-foam feel with no coil sensation at all
- Value in-house foam production and material control
- Live in Quebec where Polysleep retail availability is strongest
- Weigh under 180 pounds (foam-only support works best for lighter sleepers)
- Want to support a Montreal-based manufacturer specifically
Sleep In Makes More Sense If You:
- Want 1,322 pocketed coils for structural support beneath foam comfort layers
- Want a flippable mattress with two sleeping surfaces
- Weigh over 150 pounds and need the long-term support that coils provide
- Sleep hot and need airflow through the mattress (coil layer creates air channels)
- Want to test the mattress in person at a Brantford-area retailer
- Prefer starting at $1,099 instead of $1,299
Talia, Showroom Specialist: "When someone asks me about Polysleep, I do not say anything negative about the company. They are Canadian, they make their own foam, and they have a loyal customer base in Quebec. What I do explain is the structural difference between all-foam and hybrid. If you weigh over 160 pounds and you want a mattress that holds its shape for a decade, coils do that job better than foam. It is not about brand loyalty. It is about physics."
Two Good Options, One Engineering Difference
If every brand comparison in this series had the same level of integrity as Polysleep vs Sleep In, we would have a healthier mattress industry. Both companies are Canadian. Both are independent. Both control meaningful parts of their manufacturing process. Neither relies on private equity debt or multinational ownership to exist.
The difference is construction. Polysleep believes in foam, produces it in-house, and adds antimicrobial treatment that meets a real international standard. Sleep In believes in the combination of foam and pocketed coils, built into a flippable design that doubles usable surface life. As one example of that hybrid formula, the Elena hybrid layers latex and gel over a pocket-coil base.
For most sleepers over 150 pounds who want long-term support, we recommend the hybrid approach. For lighter sleepers who specifically value antimicrobial properties or who prefer a pure foam feel, Polysleep is a reasonable Canadian-made alternative.
Come try the Sleep In at our Brantford showroom. If Polysleep is the right mattress for you, we will tell you that honestly too.
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Find Your Perfect Mattress at Mattress Miracle
We are a family-owned mattress store in Brantford, helping our community sleep better since 1997. Come try mattresses in person and get honest, no-pressure advice.
441 1/2 West Street, Brantford, Ontario
Call 519-770-0001Frequently Asked Questions
Is Polysleep really made in Canada?
Yes. Polysleep manufactures its mattresses in Montreal, Quebec, and produces its own foam in-house. This is one of the few mattress companies in Canada that controls its own foam production rather than sourcing from third-party suppliers. Sleep In is also manufactured in Canada, making both brands genuine Canadian products.
Does antimicrobial foam make a real difference?
Polysleep's antimicrobial foam is tested to ISO 20743:2013 standards, which is a legitimate international certification. For sleepers with dust mite allergies or compromised immune systems, antimicrobial treatment offers measurable benefits. For healthy sleepers, research suggests that a quality mattress protector provides comparable hygiene benefits with the added advantage of being washable and replaceable.
Can I still buy Polysleep online?
As of 2025, Polysleep discontinued direct website sales and shifted to a retailer-only distribution model. You need to find an authorized third-party retailer to purchase a Polysleep mattress. Check polysleep.ca for the nearest authorized retailer in your area.
Which is better for heavier sleepers, Polysleep or Sleep In?
For sleepers over 200 pounds, a hybrid mattress with pocketed coils generally provides better long-term support than an all-foam mattress. The coil system maintains structural integrity independently of the foam layers, which means the mattress resists sagging more effectively under heavier loads. Sleep In's 1,322 pocketed coils are specifically designed for this kind of sustained support.
Where can I try a Sleep In mattress near Brantford?
Sleep In mattresses are available at Mattress Miracle, 441 1/2 West Street in Brantford. You can test the flippable design, compare firmness levels, and feel the difference between the coil-supported sleeping surface and a foam-only mattress. We are open Monday through Saturday with Sunday hours from 12 to 4. Call (519) 770-0001 with any questions.
Sources
- Polysleep founding (2016) and Jeremiah Curvers background: Polysleep.com, "The Polysleep Story"; Vincenzo Cutrone podcast interview
- Polysleep 882% growth and 2020 Startup List ranking: Canada NewsWire, "Polysleep Named Canada's Fastest-Growing Retail Company" (2020)
- ISO 20743:2013 antimicrobial testing standard: International Organization for Standardization
- Antimicrobial treatments in bedding products review: International Journal of Environmental Research and Public Health, Volume 18, Issue 5 (2021)
- Polysleep in-house foam production and Montreal manufacturing: Polysleep.ca product documentation
- Polysleep direct sales discontinuation (2025): Mattress-reviews.com, Polysleep review update (2026)
Visit Our Brantford Showroom
We are located at 441½ West Street in downtown Brantford. Free parking available. Our team does not work on commission, so you get honest advice based on your needs.
Mattress Miracle, 441½ West Street, Brantford, ON, (519) 770-0001
Hours: Monday–Wednesday 10am–6pm, Thursday–Friday 10am–7pm, Saturday 10am–5pm, Sunday 12pm–4pm.
Whether you are comparing Polysleep's foam approach to Sleep In's hybrid construction, or you just want to feel what 1,322 pocketed coils actually do underneath foam comfort layers, come in and test the Sleep In yourself. Our showroom team can explain the structural differences in about five minutes, and you will leave understanding which construction style matches your body and your budget.
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