Brad, Owner, 40+ years of experience: "We have been helping Brantford families sleep better since 1997. Every customer gets personal attention, honest advice, and the kind of follow-up service you just do not get from big box stores."
Does your king mattress have enough coils to actually support a king-size sleeping surface? Most people buy a king for the space. But if the internal construction was designed for a smaller mattress and simply stretched wider, that space comes with compromised support.
Novaform makes several king mattresses available at Costco, and they are among the most affordable kings you will find. Dorothy at Mattress Miracle hears the appeal: "Customers tell us they got a king from Costco for under $800. That is impressive for the size. But when we show them the coil-per-square-inch math, they understand why their back started hurting after six months."
Novaform King Models at Costco
| Model | Type | King Price (CAD) | Coils |
|---|---|---|---|
| Novaform ComfortGrande | All-foam | $700 - $800 | None |
| Novaform DuoComfort | All-foam | $600 - $700 | None |
| Novaform SoFresh Hybrid | Hybrid | $900 - $1,100 | ~800 - 1,000 |
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The all-foam models rely entirely on layered foam for support. The SoFresh hybrid adds pocketed coils, but the count is modest for such a large surface area.
The King Size Math Problem
A king mattress is 76 inches wide and 80 inches long. That is 6,080 square inches of sleeping surface. A queen is 60 by 80, or 4,800 square inches. The king is 27% larger than the queen.
The Coil Density Gap
- Novaform SoFresh hybrid king: ~900 coils across 6,080 sq in = 0.148 coils per sq inch
- Restonic ComfortCare king: 1,440 coils across 6,080 sq in = 0.237 coils per sq inch
The Restonic has 60% more coil density across the same king surface. That difference determines how precisely the mattress responds to your body.
When coils are spread thinner, each one bears more weight. More weight per coil means faster fatigue. Faster fatigue means the support you feel in month 1 is noticeably different from what you feel in month 12. Brad at Mattress Miracle sees this with customers regularly: "They tell us the mattress felt great at first. It did. But 900 coils supporting a king is like having half the staff running a full restaurant. Everything works harder and wears out sooner."
Why All-Foam Kings Are Risky
The Novaform ComfortGrande and DuoComfort kings have zero coils. The entire support system is layered foam. For a king-size mattress, that creates specific problems:
- No zoned support: Foam compresses uniformly. Your heavier hips sink at the same rate as your lighter shoulders, creating spinal misalignment.
- Heat buildup: Without coils creating airflow channels, a king-sized foam mattress traps significantly more body heat than a queen because of the larger surface area in contact with your body.
- Motion transfer: In a king bed (which usually means two sleepers), an all-foam mattress transfers movement across the entire surface. Coils isolate motion because each one moves independently.
- Faster sag: Foam density determines how long the material resists compression. At 2.5 to 3.5 lbs/ft3, Novaform foam shows body impressions within 12 to 18 months of regular use on a king.
The Hybrid's Limitations
The Novaform SoFresh hybrid is the better choice among the Novaform king options. But even with coils, it has limitations at king size:
Talia's Assessment
"The SoFresh hybrid is genuinely better than the all-foam models. But at king size, 800 to 1,000 coils is entry level. You need at least 1,200 coils in a king to get proper zoned support. The Restonic ComfortCare king at 1,440 coils is in a different category entirely."The hybrid also uses shorter coil heights than the Restonic, which reduces airflow and limits the coil system's ability to respond to different body weights. Taller coils have more travel, meaning they can compress and rebound more effectively for heavier sleepers.
Restonic King: Built for the Size
| Feature | Novaform SoFresh King | Restonic ComfortCare King |
|---|---|---|
| Coil Count | ~800 - 1,000 | 1,440 pocketed |
| Coils/sq inch | ~0.148 | 0.237 |
| Foam Density | 2.5 - 3.5 lbs/ft3 | 4.0+ lbs/ft3 |
| Lumbar Zone | Not specified | Reinforced lumbar coils |
| King Price (CAD) | $900 - $1,100 | $1,455 |
| Delivery | Box, self-setup | White glove, room of choice |
↔ Scroll to see full table
The price difference is $355 to $555 between the Novaform hybrid king and the Restonic ComfortCare king. Over a 10-year lifespan, that is $36 to $56 per year for 440 to 640 additional coils, denser foam, and professional delivery.
Frequently Asked Questions
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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.
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Call 519-770-0001How much is a Novaform king mattress at Costco?
Novaform king mattresses at Costco range from $600 to $1,100 CAD depending on the model. The all-foam ComfortGrande king typically runs $700 to $800, while the SoFresh hybrid king costs $900 to $1,100.
Is a Novaform king mattress good for couples?
The Novaform king provides ample space (76 x 80 inches), but the all-foam models transfer motion between partners. The hybrid model performs better for couples, though its coil count is modest for king size. A mattress with 1,440 coils isolates partner movement more effectively.
Does Novaform make a California king?
Novaform availability in California king varies by Costco location. The standard king (76 x 80) is more consistently stocked than the California king (72 x 84). Check your local Costco or Costco.ca for current availability.
How long does a Novaform king last?
Most owners report significant comfort decline in 3 to 5 years. The all-foam models tend to develop body impressions faster than the hybrid. Two sleepers on a king accelerate wear because the mattress supports more total weight nightly.
What king mattress has the most coils at Costco?
Among Costco king options, the Beautyrest hybrid typically has the highest coil count at around 1,000 pocketed coils. The Restonic ComfortCare king at Mattress Miracle offers 1,440 pocketed coils, which is 44% more than the best Costco option.
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Phone: (519) 770-0001
Hours: Mon-Wed 10-6, Thu-Fri 10-7, Sat 10-5, Sun 12-4
Our team has 38 years of experience helping customers find the right sleep solution. Call ahead or walk in any day of the week.
Sources
- Radwan A, Fess P, James D, et al. Effect of different mattress designs on promoting sleep quality, pain reduction, and spinal alignment in adults with or without back pain. Sleep Health. 2015;1(4):257-267. DOI: 10.1016/j.sleh.2015.08.001
- Verhaert V, Haex B, De Wilde T, et al. Ergonomics in bed design: the effect of spinal alignment on sleep parameters. Ergonomics. 2011;54(2):169-178. DOI: 10.1080/00140139.2010.538725
- Okamoto-Mizuno K, Mizuno K. Effects of thermal environment on sleep and circadian rhythm. J Physiol Anthropol. 2012;31(1):14. DOI: 10.1186/1880-6805-31-14
- Cary D, Briffa K, McKenna L. Identifying relationships between sleep posture and non-specific spinal symptoms in adults: A scoping review. BMJ Open. 2019;9(6):e027633. DOI: 10.1136/bmjopen-2018-027633
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