Quick Answer: Costco Canada carries mattresses in various sizes, but double bed (54 x 75 inches) availability is limited and varies by location. Their warehouse floors primarily stock queen and king sizes. For a dedicated double bed mattress with in-person testing and expert advice, a local mattress retailer is almost always the more reliable choice.
In This Guide
Reading Time: 6 minutes
Does Costco Carry Double Bed Mattresses?
Costco Canada's mattress selection shifts regularly. Their in-store inventory at any given time is typically focused on queen and king sizes, which account for the majority of mattress purchases in Canada. Double bed (full size) mattresses do appear in their online catalogue and occasionally in warehouses, but availability is not consistent across locations or seasons.
If you are specifically searching for a double bed mattress at Costco, the most reliable approach is to check their website directly and filter by size. Keep in mind that online orders from Costco often involve third-party delivery, and return logistics for a mattress can be more involved than returning a smaller item.
Why the Double Size Has Become Less Common
The double (full) mattress was the standard adult size before the queen became the dominant choice in the 1980s and 1990s. At 137 cm wide, a double provides only 68.5 cm per person when shared, which is less than a single twin. Research on sleep quality and partner disturbance, including work published in Sleep by Pankhurst and Horne (1994), found that couples in larger beds reported fewer sleep disruptions. This is part of why queen and king sizes have so thoroughly replaced the double for couples.
8 min read
What Is a Double Bed Mattress?
A double bed mattress, also called a full size, measures 137 x 191 cm (54 x 75 inches). It is 15 cm wider than a twin (96 cm) but the same length, and it is 15 cm narrower and 12 cm shorter than a queen (152 x 203 cm).
| Size | Width (cm) | Length (cm) | Best For |
|---|---|---|---|
| Twin | 96 | 188 | Children, bunk beds, single teens |
| Double (Full) | 137 | 191 | Single adults, guest rooms, smaller bedrooms |
| Queen | 152 | 203 | Couples, most popular adult size |
| King | 193 | 203 | Couples needing maximum space |
The double is a practical choice for guest rooms, smaller bedrooms, or single adults who want more space than a twin without stepping up to a queen. It is worth noting that if there is any possibility of the room eventually housing two people regularly, the queen is a better long-term investment given that the price difference is often modest.
Limitations of Buying a Mattress at Costco
Costco has a strong reputation for quality and a generous return policy. For mattresses specifically, there are a few practical limitations worth understanding before you decide:
- Limited selection: At any given time, Costco warehouses carry a small number of mattress models. If you are looking for a specific firmness, material type, or size, there is a good chance it is not in stock.
- Difficult to test: A proper mattress test requires 10 to 15 minutes lying in your normal sleep position. A busy warehouse is not the ideal environment for this.
- No sleep specialist advice: Costco staff are generalists. If you have back pain, sleep hot, or share the bed with a partner who has different needs, there is no one to help you navigate those specifics.
- Delivery logistics: Costco's mattress delivery service varies by region and product. White glove delivery is not always available. In some cases, the mattress arrives in a box and setup is your responsibility.
Dorothy, Sleep Specialist at Mattress Miracle: "The double size is often bought for guest rooms or kids transitioning out of a twin. It is not a size Costco always has on the floor. If you need it quickly, or if you want to actually feel the mattress before you buy, a dedicated mattress store is going to serve you better."
What to Look for in a Double Bed Mattress
Regardless of where you buy, a double bed mattress should meet the same quality benchmarks as any other size:
Quality Benchmarks for a Double Mattress
- Support core: A pocketed coil system or high-density foam base that holds its shape over years of use. For innerspring models, look for a coil count proportional to the size (for a double, 800+ individually wrapped coils is a reasonable benchmark).
- Comfort layer quality: The foam or latex above the support core determines how the mattress feels. Look for CertiPUR-US certified foam or natural latex rather than unspecified generic foam.
- Edge support: Reinforced edges allow you to use the full surface of the mattress without feeling like you will roll off. This matters more on a double, where width is already limited.
- Warranty: A minimum 10-year warranty is standard for quality mattresses. Shorter warranties often indicate lower-quality construction.
- Trial period: Ideally 30 to 100 nights in your own home, since your body needs time to adjust to a new sleep surface.
Our Restonic ComfortCare Double has 980 individually wrapped coils and is a popular choice for guest rooms and single adults. It comes with a full manufacturer's warranty and can be tested in our Brantford showroom before purchase.
A Local Option Near Brantford
If you are in the Brantford, Hamilton, Cambridge, or Kitchener area and are searching for a double bed mattress, Mattress Miracle at 441 1/2 West Street carries double sizes in stock and available to test in person.
Because we are a family-owned store open since 1997, we know our products well and carry a curated selection rather than an overwhelming warehouse full of options. Our team will help you understand what you are buying, let you lie on it, and make sure the size, firmness, and price are right for your situation.
White Glove Delivery Across Ontario
Unlike warehouse delivery, our white glove delivery service includes professional setup, old mattress removal, and floor protection during the process. We deliver to Brantford and surrounding areas including Hamilton, Cambridge, Kitchener, Waterloo, Guelph, and beyond. Call (519) 770-0001 to confirm delivery availability for your area.
You may also find it useful to read our article on average mattress prices in Canada to understand what a fair price looks like for a double size, or review our complete mattress guide if you are still researching your options.
Shop: Compare Our Mattresses
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
Does Costco sell double bed mattresses in Canada?
Costco Canada does carry mattresses in various sizes, but double (full size, 54 x 75 inches / 137 x 191 cm) availability varies by location and season. Their in-store selection typically focuses on queen and king sizes. Double size availability is more limited and may only be available online.
What size is a double bed mattress?
A double bed mattress, also called a full size, measures 137 x 191 cm (54 x 75 inches). It is 15 cm wider than a twin but the same length, making it suitable for a single adult or a teenager. It is smaller than a queen (152 x 203 cm) and not recommended for two adults who both move in their sleep.
Can I try a Costco mattress before I buy?
Costco warehouse locations typically display a limited number of floor models. You can sometimes lie on them briefly, but the environment is not set up for a relaxed, thorough test. Costco does offer a generous return policy, which mitigates the risk of ordering without a full trial.
Where can I find a double bed mattress near Brantford?
Mattress Miracle at 441 1/2 West Street in Brantford carries double bed mattresses in multiple brands and firmness levels. Our team can help you find the right fit for your sleep style and budget. Call (519) 770-0001 or visit during store hours.
Sources
- Pankhurst, F.P., & Horne, J.A. (1994). The influence of bed partners on movement during sleep. Sleep, 17(4), 308-315. doi.org/10.1093/sleep/17.4.308
- Jacobson, B.H., et al. (2008). Grouped comparison of sleep quality for new and personal bedding systems. Journal of Chiropractic Medicine, 7(4), 139-149. doi.org/10.1016/j.jcm.2008.09.001
- Radwan, A., et al. (2015). Effect of different mattress designs on promoting sleep quality, pain reduction, and spinal alignment. Sleep Health, 1(4), 257-267. doi.org/10.1016/j.sleh.2015.08.001
- Statistics Canada. (2021). Household Living Arrangements in Canada. statcan.gc.ca
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.
If you have been searching for a double bed mattress and are not finding it at Costco or online, come see us. We carry the double size in stock and can have it delivered with full white glove service. No warehouse, no guesswork.
Shop This Topic at Mattress Miracle
Popular picks at Mattress Miracle:
- Restonic ComfortCare Dalton & Albany mattress
- Whitney flippable bamboo mattress
- Somnia 3.0 posture pillow
Or compare our mattresses in our Brantford showroom.