Sources
- Jacobson, B. H. et al. (2008). "Grouped comparisons of sleep quality for new and personal bedding systems." Applied Ergonomics, 39(2), 247-254. PubMed 17662962.
- 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. PubMed 29073401.
- Kovacs, F. M. et al. (2003). "Effect of firmness of mattress on chronic non-specific low-back pain." The Lancet, 362(9396), 1599-1604. PubMed 14630439.
Quick Answer: Costco's futon mattress selection is limited and seasonal. They occasionally carry foam futon options online or in-warehouse, but stock varies. For shoppers needing a futon mattress now, or who want to evaluate fill quality and thickness in person, local furniture and mattress stores offer better selection and availability than waiting on Costco to restock.
In This Guide
Reading Time: 5 minutes
A futon mattress serves double duty as both a sitting surface and a sleeping surface, which creates specific construction demands that standard mattresses do not face. A futon folds, bends, and unfolds repeatedly, meaning its fill must maintain integrity under that repeated stress. Understanding what distinguishes a durable futon mattress from one that deteriorates quickly helps whether you buy from Costco or anywhere else.
Futon Mattress Fill Types
| Fill Type | Sitting Comfort | Sleeping Comfort | Fold Durability | Typical Lifespan |
|---|---|---|---|---|
| Cotton only | Firm | Poor (compacts over time) | Good | 2 to 3 years |
| Polyester fill | Soft initially | Poor (loses shape) | Fair | 1 to 2 years |
| Foam core | Good | Good | Fair to Good | 3 to 5 years |
| Foam and cotton blend | Very good | Very good | Good | 4 to 6 years |
| Innerspring | Good (firm) | Good for back sleepers | Good | 5 to 8 years |
Futon Mattress Compression: Cotton fill in futon mattresses compresses under weight and does not fully recover the way foam does. A cotton futon that is 15 cm thick when new can compress to 7 to 8 cm within two years of regular use. Foam cores resist this compression better, though they can develop a fold crease at the hinge point over years of repeated bending.
8 min read
Thickness Guide for Futon Mattresses
| Thickness | Best Use | Notes |
|---|---|---|
| 7 to 10 cm (3 to 4 in) | Decorative / occasional sitting | Not suitable for sleeping adults |
| 12 to 15 cm (5 to 6 in) | Occasional guest sleeping | Acceptable for light use, not primary bed |
| 15 to 20 cm (6 to 8 in) | Regular sleeping use | The minimum for nightly adult use |
| 20 cm+ (8 in+) | Daily sleeping, primary bed | Most comfortable for regular use |
Futon Mattress Sizes
| Futon Size | Dimensions | Frame Fit |
|---|---|---|
| Twin | 99 x 191 cm (39 x 75 in) | Standard twin futon frame |
| Full / Double | 137 x 191 cm (54 x 75 in) | Most common futon frame size |
| Queen | 153 x 203 cm (60 x 80 in) | Larger frames, less common |
Most futon frames sold in Canada are sized for a full/double mattress. Always measure your frame interior before ordering a replacement mattress, as futon dimensions are not always standardized across brands.
What to Avoid in a Cheap Futon Mattress
- Cotton-only fill under 15 cm: Compacts to an unusable state within a year of regular use.
- No density rating on foam models: Low-density foam (under 1.5 lbs/ft³) deforms permanently after repeated folding.
- Covers that cannot be removed: A futon mattress you cannot wash is a hygiene problem within months of use as a sleeping surface.
- No warranty: A futon mattress with no warranty has no quality assurance from the manufacturer.
Mattress Miracle Insight: If you are buying a futon mattress primarily as a guest bed that will be used infrequently, a mid-range foam-core option in the 15 cm range works well. If the futon is going to be a daily sleeping surface for an adult, you are better served by a regular twin or full mattress on a platform bed frame, which will be more comfortable and more durable than any futon construction for that use case.
Costco futon mattresses offer warehouse pricing and bulk purchasing convenience, but the limited selection and inability to test before buying creates a risk of comfort mismatch. Mattress Miracle at 441½ West Street in Brantford carries futon-compatible mattresses that customers can test in the showroom. Dorothy notes that testing a futon mattress before buying eliminates the guesswork that warehouse shopping requires. Call (519) 770-0001 for futon mattress options.
Shop: Futon Beds at Mattress Miracle
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 futon mattresses?
Costco's futon mattress selection is limited and varies by season. They occasionally carry foam-filled futon mattresses online or in-warehouse, but their stock is inconsistent compared to dedicated furniture or mattress retailers.
What size do futon mattresses come in?
Futon mattresses are typically available in twin (99 x 191 cm), full/double (137 x 191 cm), and queen (153 x 203 cm). The most common futon size is full/double, which fits most standard futon frames.
How thick should a futon mattress be?
A futon mattress used regularly for sleeping should be at least 15 cm (6 inches) thick. Thinner futon mattresses work for sitting but are uncomfortable for extended sleeping. Mattresses used primarily for sitting can be 8 to 10 cm thick.
What is the best filling for a futon mattress?
For regular sleeping use, foam-core futon mattresses with a minimum density of 1.8 to 2.5 lbs/ft³ outperform cotton-only or polyester fill models. Foam holds its shape better over repeated folding and offers more consistent support.
Sources
- Consumer Reports, "Futon Mattress Buying Guide," 2024
- Sleep Foundation, "Best Futon Mattresses," 2025
- Canadian Furniture Dealers Association, "Futon Standards," 2024
Visit Our Brantford Showroom
Mattress Miracle carries mattresses for guest rooms and futon setups at our Brantford location. If you are looking for a more comfortable sleeping solution than a traditional futon, come in and we can show you what a thin profile regular mattress on a platform frame looks like as an alternative.
Mattress Miracle , 441½ West Street, Brantford, ON , (519) 770-0001
Hours: Monday to Wednesday 10am to 6pm, Thursday to Friday 10am to 7pm, Saturday 10am to 5pm, Sunday 12pm to 4pm.
Open seven days a week, no membership required.
Shop This Topic at Mattress Miracle
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Or see all our mattresses in our Brantford showroom.