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- 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
- Kovacs FM, Abraira V, Peña A, et al. Effect of firmness of mattress on chronic non-specific low-back pain: randomised, double-blind, controlled, multicentre trial. Lancet. 2003;362(9396):1599-1604. DOI: 10.1016/S0140-6736(03)14792-7
Quick Answer
Costco Canada carries 3 to 6 double mattress options at any given time, priced from $349 to $799. Selection is limited compared to queen and king sizes. You cannot test them before buying. Restonic ComfortCare double offers 980 coils at $950 with in-store fitting. Visit Mattress Miracle at 441 1/2 West Street, Brantford or call (519) 770-0001.
Are you searching for a double mattress at Costco Canada and finding the options surprisingly thin? You are not imagining it. The double size gets the least attention at warehouse retailers, and understanding why helps you decide whether Costco is the right place to shop for this particular size.
Talia on our team at Mattress Miracle hears this regularly from customers: "I went to Costco to get a double and there were only three options." The double mattress sits in a strange market position that affects what ends up on Costco's floor and what gets left out entirely.
Costco Canada Double Mattress Selection
Costco Canada's double mattress inventory is significantly smaller than their queen or king selection. At any given time, a typical warehouse location carries 3 to 6 double mattress options. Online availability through Costco.ca may add 2 to 4 additional options, though these rotate frequently.
The brands you are most likely to find include:
- Novaform: Costco's house brand. All-foam construction (no coils). Typically the lowest price point at $349 to $499.
- Sealy: Warehouse-exclusive models with coil construction. Mid-range pricing at $499 to $699. Model numbers differ from Sealy's direct retail lineup.
- Casper: Available intermittently, usually online only. All-foam or hybrid construction at $599 to $799.
- Beautyrest: Appears during promotional periods. Coil construction with limited comfort layering at $549 to $799.
Why Double Selection Is Limited
The double mattress represents roughly 15 percent of total mattress sales in Canada. Queen accounts for nearly 50 percent, and king takes about 25 percent. Costco operates on volume, and every square foot of warehouse floor needs to generate maximum revenue.
Dorothy from our team explains the practical impact: "When a warehouse has room for 15 mattress SKUs, they will stock 6 to 8 queens, 4 to 5 kings, and whatever space remains goes to twins and doubles. The double gets squeezed."
This volume-driven selection creates three problems for double mattress shoppers:
Three Drawbacks of Limited Selection
- Fewer firmness options. With only 3 to 6 doubles available, you might find one soft, one medium, and one firm. Your preferred comfort level may not exist in the selection.
- Fewer construction types. You may find all-foam and basic coil options but no hybrid, latex, or flippable models in the double size.
- No comparison shopping within the store. Testing queen and king models side by side is easy with 10+ options. With 3 to 6 doubles (none of which can be tested anyway), meaningful comparison is impossible at the warehouse.
Online vs. Warehouse Availability
Costco.ca often shows more double mattress options than your local warehouse. This seems like a benefit until you consider the trade-offs.
Warehouse purchase advantages: You can see the packaging, check the weight, read the label specifications. You can take it home the same day. Returns happen at the membership desk.
Online purchase challenges: No physical inspection. Delivery takes 5 to 14 business days. The mattress ships compressed in a box, and the off-gassing period can last 48 to 72 hours. Returns require scheduling a pickup, which can take additional days to arrange.
Brad notes that the online experience for a double mattress is identical to ordering from any bed-in-a-box company: "You are buying based on a website description and hoping the firmness level matches what you expected. The Costco name is on the checkout page, but the buying experience is the same as ordering from any online mattress company."
Double Mattress Size Guide for Canadian Homes
Before comparing specific models, it helps to understand how the double size fits into Canadian living spaces.
Double Mattress Dimensions
| Measurement | Double/Full | Queen (comparison) |
|---|---|---|
| Width | 54 inches (137 cm) | 60 inches (152 cm) |
| Length | 75 inches (191 cm) | 80 inches (203 cm) |
| Sleep Surface | 4,050 sq inches | 4,800 sq inches |
| Minimum Room Size | 10 x 10 feet | 10 x 12 feet |
| Best For | Solo sleeper or tight spaces | Couples or spacious rooms |
↔ Scroll to see full table
In older Canadian homes, especially in cities like Brantford, Hamilton, and Kitchener, many bedrooms were built to accommodate double beds. These rooms measure 10 by 10 or 10 by 11 feet, making a queen a tight fit with other furniture. The double remains the practical choice for these spaces.
Specification Comparison Table
Double Mattress Options Compared
| Feature | Costco Novaform | Costco Sealy | Restonic ComfortCare |
|---|---|---|---|
| Price | $349-$499 | $499-$699 | $950 |
| Construction | All-foam (0 coils) | 400-600 coils | 980 coils |
| Support Type | Foam density | Bonnell or pocketed | Individually wrapped, zoned |
| Edge Support | None | Basic | Reinforced |
| Try Before Buying | No | No | Yes |
| Delivery | Self-transport or basic ship | Self-transport or basic ship | White glove delivery |
| Professional Fitting | No | No | Included |
↔ Scroll to see full table
The Costco Canada Buying Experience
Buying a double mattress at Costco Canada follows the same process as any other warehouse purchase, with some mattress-specific wrinkles worth knowing.
In-warehouse: Walk to the mattress section. Pick up the boxed mattress from the pallet display (weights range from 50 to 90 pounds). Put it in your cart. Check out. Load it into your vehicle. A double mattress box typically measures about 42 by 18 by 18 inches when compressed, which fits in most SUVs and minivans.
No testing. The mattress is sealed in its packaging. You cannot lie on it, feel the surface, or assess the firmness. Your decision is based on the brand name, the box description, and whatever reviews you read online.
No guidance. Costco staff are general retail workers, not sleep specialists. They cannot assess your sleep position, body weight distribution, or spinal alignment needs. The buying decision is entirely yours.
Setup is yours. Once home, you unbox the mattress, place it on your frame, and wait 24 to 72 hours for off-gassing (for compressed models). There is no in-home setup service, no old mattress removal, and no adjustment if the firmness is wrong.
Restonic ComfortCare Double: Point-by-Point Comparison
The Restonic ComfortCare double at $950 costs more than any Costco Canada double mattress. Here is what that price difference buys:
What $950 Gets You
- 980 individually wrapped coils: Each coil responds independently to your body. Costco's best double options have 400 to 600 coils. More coils means better contouring and longer-lasting support.
- Zoned support system: Firmer coils under your hips and lumbar, softer coils under shoulders. Costco doubles use uniform gauge wire throughout.
- Professional fitting: Brad, Dorothy, or Talia assess your sleep position, body type, and any pain issues. They match you to the right firmness from our Restonic lineup.
- In-store testing: Spend 15 to 20 minutes lying on the actual mattress before you buy. Your body tells you more in 15 minutes than any review can.
- White glove delivery: We deliver to your room, set up the mattress, and remove your old one. No loading, unboxing, or waiting for off-gassing.
Brad's take: "Double mattress shoppers at Costco are usually making a practical choice for a smaller room. Practical does not mean you should settle for fewer coils or skip the fitting process. A double that does not support you properly creates the same back problems as an undersized king."
Test a 980-Coil Double in Person
Before settling for a warehouse double you cannot try, come feel the Restonic ComfortCare double at our Brantford showroom. We will help you find the right support for your sleep style.
Mattress Miracle
441 1/2 West Street, Brantford, Ontario N3R 3V9
Phone: (519) 770-0001
Mon-Wed 10-6 | Thu-Fri 10-7 | Sat 10-5 | Sun 12-4
White glove delivery to Hamilton, Burlington, Mississauga, Toronto, Kitchener, Waterloo, Guelph, Cambridge, St. Catharines, Niagara Falls, London, Barrie, and Oshawa.
Frequently Asked Questions
What double mattress brands does Costco Canada carry?
Costco Canada's double mattress selection typically includes Sealy, Casper, Novaform (Costco's house brand), and occasionally Beautyrest. Selection varies by warehouse location and rotates throughout the year. Online exclusives may include additional brands not found in-store.
How much do double mattresses cost at Costco Canada?
Double mattresses at Costco Canada range from $349 to $799 at regular pricing. Sale events can drop prices to $249 to $549. The range reflects differences in construction type, coil count, and comfort layer materials across available models.
Does Costco Canada deliver double mattresses?
Online purchases from Costco.ca include shipping to your door. In-warehouse purchases require you to transport the mattress yourself. Neither option includes in-home setup, old mattress removal, or professional fitting. The mattress arrives compressed in a box or wrapped in plastic.
Can I return a double mattress to Costco Canada?
Yes. Costco Canada has a satisfaction guarantee on mattresses. You can return a mattress at any time if unsatisfied. However, for online purchases, you must contact Costco to arrange a pickup. In-store returns require bringing the mattress back to the warehouse.
Is a double mattress the same as a full mattress at Costco?
Yes. Double and full refer to the same mattress size: 54 inches wide by 75 inches long. Costco Canada may use either term depending on the brand. Check the dimensions on the product label to confirm, as there is no size difference between the two names.
Why does Costco Canada have fewer double mattress options than queen or king?
Double mattresses represent a smaller portion of total mattress sales in Canada. Costco's buying model prioritizes SKUs with the highest sales volume. Queen and king sizes outsell doubles significantly, so Costco allocates more shelf space and online listings to those sizes.