Mattress Sizes Chart Canada: Every Size in Inches and Centimetres (2026)

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Buying a mattress starts with knowing the measurements. That sounds obvious, but the number of people who order a queen when they need a double (or vice versa) is higher than you might expect. Brad, our owner, has been fitting mattresses since 1997, and he still gets calls from customers who assumed "full" and "double" were different sizes. They are the same thing.

For detailed dimensions and comparison tables, see our single beds measurements.

This guide covers every mattress size available in Canada, from crib to Alaskan King, with measurements in both inches and centimetres. We have also included room size recommendations, weight capacity notes, and practical advice for choosing between sizes that look similar on paper but feel very different in your bedroom.

Mattress Sizes in Inches: Complete Chart

Here is the full mattress sizes chart with dimensions in inches and centimetres. These measurements follow Canadian and North American standards. Note that actual mattress measurements can vary by up to one inch depending on the manufacturer, materials, and how long the mattress has been in use.

Standard Canadian Mattress Dimensions

Canadian mattress dimensions follow the same sizing as the United States. If you are shopping from a Canadian retailer, the measurements below are what you should expect. European and UK sizes are different and not interchangeable.

Twin / Single: 38 x 75 inches (97 x 191 cm)

The twin mattress is the smallest standard adult size. At 38 inches wide, it gives one person enough room to sleep comfortably but not much more. The 75-inch length works for anyone under about six feet tall.

Best for: children transitioning from a crib, teenagers, single adults in small rooms, bunk beds, daybeds, and guest rooms where space is tight.

At Mattress Miracle, our Restonic ComfortCare Twin has 690 individually wrapped coils, which is a high count for a twin. Most budget twins use 300 to 400 coils or low-density foam.

Twin XL: 38 x 80 inches (97 x 203 cm)

The Twin XL adds five inches of length compared to a standard twin, making it 80 inches long. That extra length makes a real difference for taller teenagers and adults. Twin XL is the standard mattress size in Canadian and American university dormitories.

Best for: taller teenagers, university students, adults who want a narrow bed with full length, and split king configurations (two Twin XLs side by side equal a king).

Double / Full: 54 x 75 inches (137 x 191 cm)

The double mattress (also called a full) measures 54 inches wide and 75 inches long. A double bed is 54 inches wide, which gives each person in a couple only 27 inches of personal space. That is less than a standard crib mattress width. For this reason, most sleep experts recommend a double only for single sleepers who want more room than a twin.

Best for: single adults who want extra width, teenagers who have outgrown a twin, guest rooms, and smaller bedrooms where a queen will not fit.

Queen: 60 x 80 inches (152 x 203 cm)

The queen is the most popular mattress size in Canada. At 60 inches wide and 80 inches long, it provides enough room for two adults while fitting in most standard bedrooms. A queen bed gives each person 30 inches of width, which is adequate for most couples.

How many inches is a queen bed? The answer is 60 inches wide by 80 inches long, or roughly five feet by six feet eight inches.

Best for: couples, single adults who want room to spread out, master bedrooms, and guest rooms where you want flexibility for one or two sleepers.

Our Restonic ComfortCare Queen is our best-selling model at $1,619. It has 1,222 individually wrapped coils, which provides excellent motion isolation for couples. That coil count is significantly higher than what you will find in most online mattress-in-a-box brands at the same price point.

King / Eastern King: 76 x 80 inches (193 x 203 cm)

The king mattress measures 76 inches wide and 80 inches long. It is the widest standard mattress size, giving each person in a couple 38 inches of personal space. That is the same width as an entire twin mattress per person.

Best for: couples who want maximum personal space, co-sleeping families with young children, people who share the bed with pets, and anyone whose bedroom is at least 12 x 12 feet.

Our Restonic ComfortCare King has 1,440 individually wrapped coils at $2,051. The higher coil count compared to the queen means better weight distribution across the larger surface area.

California King: 72 x 84 inches (183 x 213 cm)

The California King is four inches narrower than a standard king but four inches longer. At 84 inches (seven feet) in length, it is the longest standard mattress size available. Despite having almost identical surface area to a regular king (42.0 vs 42.2 square feet), the Cal King feels quite different because of the proportions.

Best for: tall sleepers (over six feet two), narrow bedrooms where a standard king is too wide, and anyone who needs the extra length more than the extra width.

Specialty and Oversized Mattress Measurements

Beyond the six standard sizes, several specialty and oversized mattress dimensions exist for specific needs. These are not carried by most retailers and typically require custom ordering.

Full XL: 54 x 80 inches (137 x 203 cm)

The Full XL is the same width as a standard double but adds five inches of length, matching the length of a queen. This is a niche size that works well for taller single adults who prefer the narrower width of a double. Finding sheets and fitted bedding for a Full XL can be more difficult than for standard sizes.

Olympic Queen: 66 x 80 inches (168 x 203 cm)

The Olympic Queen adds six inches of width to a standard queen, making it 66 inches wide. This gives each person in a couple 33 inches of personal space, which is a noticeable improvement over the standard queen's 30 inches per person. The Olympic Queen is relatively rare in Canada, and finding bed frames and sheets can be challenging.

Split King: 76 x 80 inches (193 x 203 cm)

A Split King is two Twin XL mattresses placed side by side on a king-sized bed frame. The total dimensions are identical to a standard king (76 x 80 inches), but each side is independent. This is the preferred configuration for adjustable bed bases because each person can raise or lower their side without affecting their partner.

At Mattress Miracle, we pair Split King configurations with adjustable bases regularly. Brad can walk you through the setup and explain how the two mattresses connect with a bridge foam or strap system to prevent the gap from being noticeable.

Wyoming King: 84 x 84 inches (213 x 213 cm)

The Wyoming King is a perfect square measuring 84 inches on each side. It provides 49 square feet of sleeping surface, about 16 percent more than a standard king. This size is popular with co-sleeping families and couples who share the bed with large dogs.

Texas King: 80 x 98 inches (203 x 249 cm)

The Texas King is 80 inches wide and 98 inches long, making it the longest rectangular mattress commonly available. At over eight feet in length, it accommodates extremely tall sleepers. This is a specialty order item and requires custom sheets and bed frames.

Alaskan King: 108 x 108 inches (274 x 274 cm)

The Alaskan King is the largest mattress size manufactured, measuring nine feet by nine feet. It has 81 square feet of sleeping surface, nearly double a standard king. The Alaskan King is a custom-order product that requires a very large bedroom and custom bedding. It is typically chosen by families who want the entire family in one bed.

Mattress Size Names Explained

Mattress size names can be confusing because different regions and retailers use different terminology for the same dimensions. Here is a guide to every mattress size name you might encounter in Canada.

Names That Mean the Same Thing

The most common source of confusion is the double/full naming. In Canada, "double" is the more common term. In the United States, "full" is more widely used. They are identical in size: 54 x 75 inches. If you see a bed frame listed as "full size" from an American retailer, it will fit a Canadian double mattress perfectly.

Types of Mattresses by Size Category

Mattress types (innerspring, hybrid, memory foam, latex) are available in all standard sizes. The type of mattress refers to the construction and materials, not the dimensions. Here is how size and type intersect:

Weight matters when you are moving a mattress up stairs or through narrow hallways. A king-sized hybrid mattress can weigh over 150 pounds. This is one reason our white glove delivery service includes carrying the mattress to your bedroom and setting it up on your frame.

How to Choose the Right Mattress Size

Choosing between mattress sizes is not just about bedroom dimensions. Your sleep habits, body size, partner preferences, and future plans all factor into the decision.

Single Sleeper Decision Guide

If you sleep alone, the minimum recommended width is 38 inches (a twin). But "minimum" and "comfortable" are different things. Here is a practical breakdown:

Couples Decision Guide

For two people sharing a bed, width per person is the critical measurement. Here is how each size divides between two sleepers:

Height Considerations

If you are taller than six feet, mattress length matters as much as width. Standard twin and double mattresses are 75 inches long (six feet three inches). That sounds like enough for someone who is six feet tall, but your pillow takes up six to eight inches at the top, which means your feet may hang off the end.

For anyone over five feet ten, we recommend the 80-inch length found in queen, king, Twin XL, and Full XL sizes. For sleepers over six feet four, a California King (84 inches) provides the most length in a standard size.

Room Size Requirements for Each Mattress

A mattress that fits your body also needs to fit your room. The general rule is to leave at least 24 inches of clearance on each side and at the foot of the bed for walking paths. Here are the minimum and recommended room sizes for each mattress:

Clearance for Bed Frames and Headboards

Your bed frame adds to the total footprint. A basic metal frame adds about two to four inches on each side. A platform bed with side rails can add four to six inches. An upholstered headboard or footboard adds even more. When calculating room requirements, add the frame dimensions to the mattress dimensions, not just the mattress alone.

Stairwell and Doorway Considerations

Getting a mattress into your bedroom requires moving through hallways, staircases, and doorways. Standard interior doors in Canadian homes are 30 to 32 inches wide. A queen mattress (60 inches wide) needs to be tilted and maneuvered through these openings. King mattresses (76 inches wide) can be particularly difficult in older homes with narrow staircases.

Mattress-in-a-box brands solve this problem by compressing the mattress into a box that fits through any doorway. Traditional mattresses require careful maneuvering. Our delivery team handles this every day and knows the tricks for getting large mattresses up tight staircases.

Canadian vs International Mattress Sizes

If you are ordering a mattress or bedding from outside North America, be aware that sizing standards differ significantly. A "double" in the UK is not the same as a "double" in Canada.

The biggest difference is with king sizes. A UK "king" is the same size as a North American queen. A UK "super king" is still narrower and shorter than a North American king. If you are importing a bed frame from Europe or the UK, check the exact centimetre dimensions rather than relying on the size name.

Mattress Thickness and Profile

Mattress size charts typically show width and length, but thickness (also called profile) matters too. Mattress thickness ranges from six inches for basic models to over 15 inches for premium hybrid mattresses.

Thickness affects sheet fit. Standard fitted sheets accommodate mattresses up to about 12 inches thick. If your mattress is 14 or 15 inches thick, you will need deep-pocket fitted sheets. Our bedding accessories collection includes deep-pocket options sized for thicker mattresses.

Mattress Sizes and Weight Capacity

Larger mattresses generally support more total weight because the load is distributed across a greater surface area. However, the weight capacity depends more on the mattress construction than the size.

Our Restonic ComfortCare King has 1,440 coils compared to 1,222 in the queen. That extra coil count is not just about the larger size. It means more support points per square inch, which translates to better weight distribution for heavier sleepers and couples.

When to Size Up Your Mattress

There are several situations where upgrading to a larger mattress makes practical sense:

When Sizing Down Makes Sense

Not everyone needs the biggest mattress possible. Downsizing from a king to a queen makes sense if you are moving to a smaller home, if the bedroom closet or door placement makes the king awkward, or if one partner has moved out. A queen is easier to move, costs less for sheets and protectors, and still provides plenty of room for one or two sleepers.

Mattress Sizes for RV and Specialty Applications

Recreational vehicles, boats, and custom-built beds often use non-standard mattress sizes. Here are the most common specialty dimensions:

RV mattresses are shorter than standard mattresses to fit the compact sleeping areas in motorhomes and trailers. An RV queen is five inches shorter than a standard queen, which means standard queen sheets will be too long and bunch up at the foot. You need RV-specific bedding for a proper fit.

Price Comparison by Mattress Size

Larger mattresses cost more because they use more materials. Here is how pricing typically scales across sizes at Mattress Miracle:

The price difference between a queen and king is typically 20 to 30 percent across all brands. That extra cost gets you 27 percent more sleeping surface (42.2 vs 33.3 square feet). For couples, the per-person cost increase is modest when you consider the comfort improvement.

Once you know your mattress dimensions, finding the right blanket is the next step. Our blanket measurements guide covers every blanket size from crib to California king, with drape calculations for different mattress depths.