How Big is My Bed? Standard Bed Size Comparison –

How Big is My Bed? Standard Bed Size Comparison

How Big is My Bed? Standard Bed Size Comparison

When it comes to updating a room in your home, there’s probably no greater challenge than picking out a new bed frame and mattress; not only does the bedroom set need to match your aesthetic, the mattress must be good enough to ensure a good night’s sleep for years to come. Admittedly, the search for a new bed can be overwhelming, considering the sheer number of style options available to you.  

To make things even more difficult, standard sizing and the naming conventions you may be used to (King, Queen, Double, etc.) differ from one part of the world to the next. This guide intends to make this process easier for the Canadian shopper by shedding some light on the various bed sizes available.

Standard Bed Size Comparison in Canada

There are probably more bed sizes than you realize, and that’s okay. Most of us grow up using a Twin or Single bed as a child and only graduate to a Queen or King sized bed as we transition to adulthood. You might be surprised to learn that there are a number of different sizes that you may not have heard of before, and one of those sizes could  be just what you’re looking for!

Mattress Size and Dimensions Chart

Consult the table below to quickly see how each mattress size matches up to the rest.

How big / wide is a Twin or Single size bed?

Twin/Single: 39” x 75” (97 cm x 191 cm)

How big / wide is a Full / Double size bed?

Full/Double: 54” x 75” (135 cm x 191 cm)

How big / wide is a Queen size bed?

Queen: 60” x 80” (152 cm x 203 cm)

How big / wide is a King size bed?

King: 76” x 80” (193 cm x 213 cm)

How big / wide is a California King size bed?

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

How big / wide is a Single L or Twin XL size bed?

Single L/Twin XL: 39” × 80” (99 cm × 203 cm)

How big / wide is a three Quarters size bed?

Three Quarters: 48” x 75” (122 cm x 191 cm)

How big / wide is a Full XL size bed?

Full XL: 54” x 80” (135 cm x 203 cm)

Mattress Size



39” x 75” (97cm x 191cm)

Twin XL

39” x 80” (99cm x 203cm)


54” x 75” (135cm x 191cm)

Full XL

54” x 80” (137cm x 203cm)


60” x 80” (152cm x 203cm)


76” x 80” (193cm x 203cm)

California King

72” x 84” (183cm x 213cm)

As you can see, the name of a particular bed may infer a much greater size, (the difference between a Full/Double bed and a Full XL is a mere 5 inches (12.7 cm), so it’s important to remember that the difference in cost may not translate to an appreciable difference in size).

Things to Consider

Even if the variations don’t look like much, they can make all the difference in the quality of your nightly sleep. Of course, there’s no accounting for personal preference, but all else considered, there are a few general rules of thumb that should be observed.

If you’re 5’9” (180 cm) or taller, the extra length offered by a Queen or King sized bed will give you more room to stretch out. For those that are 5’6” (170 cm) or shorter, the extra length will not be advantageous. The term “Double” might infer that it is twice the size of a Single bed, but that isn’t the case. While there is no difference in length between the two, the difference in width is less than a foot and a half (46 cm). A Double may also infer that it is big enough to accommodate two people, but it is generally recommended that if you’re sharing a bed with someone else and space permits, a Queen sized mattress is a much better option.