Buying the wrong sheet set size is one of the most common bedding mistakes — sheets that are too small pull off the mattress corners, while oversized sheets bunch up uncomfortably. This guide breaks down every standard mattress size in Canada so you can order the right sheet set the first time.
Standard Bed Sheet Sizes Chart
| Size |
Mattress Dimensions |
Fitted Sheet Depth Needed |
| Twin |
39" x 75" |
10–14 inches |
| Twin XL |
39" x 80" |
10–14 inches |
| Full/Double |
54" x 75" |
10–14 inches |
| Queen |
60" x 80" |
12–16 inches |
| King |
76" x 80" |
12–16 inches |
| California King |
72" x 84" |
12–16 inches |
| Split King |
Two 38" x 80" pieces |
12–16 inches |
How to Measure Your Mattress Before Buying
Measure the length, width, and depth (height) of your mattress from edge to edge, including any mattress topper you regularly use. This depth measurement is the most commonly overlooked detail — a fitted sheet with too shallow a pocket will pop off the corners overnight.
Steps to measure correctly:
- Measure width and length across the top of the mattress
- Measure depth from the top surface down to the base/box spring
- Add 1–2 inches to the depth measurement if you use a mattress topper
- Match your numbers to the sizing chart above
Twin vs Twin XL — What's the Difference?
Twin and Twin XL share the same width (39 inches) but differ in length — Twin XL is 5 inches longer, matching most dorm and adjustable bed frames. Buying a regular Twin sheet set for a Twin XL mattress will leave the sheet too short at the foot of the bed.
Queen vs King vs California King
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Queen is the most common size for couples in standard bedrooms, offering a balance of space and room size.
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King is wider than Queen, better suited for couples wanting more shoulder room or families who co-sleep with kids/pets.
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California King is longer and narrower than King, designed for taller individuals who need extra leg room.
Split King Sheet Sets Explained
Split King sheet sets include two separate twin XL–sized fitted sheets instead of one large fitted sheet, designed for adjustable bed frames where each side moves independently. The flat sheet and pillowcases in a split king set are usually standard king-sized to fit the full bed width.
Frequently Asked Questions
How do I know what size sheets to buy for my mattress?
Measure your mattress's length, width, and depth, then match those measurements to the standard sizing chart — depth is especially important if you use a mattress topper.
What's the difference between Queen and King sheet sets?
King sheet sets are wider than Queen sets to fit the extra width of a King mattress, while the length stays the same at 80 inches for both sizes.
Do I need special sheets for a mattress topper?
Yes, if your topper adds more than an inch or two of height, look for "deep pocket" sheet sets with a 14–16 inch fitted sheet depth to avoid the sheet slipping off.
Can I use a Full-size sheet set on a Queen mattress?
No, a Full sheet set is too narrow and short for a Queen mattress and won't fit properly — always match the sheet set size exactly to your mattress dimensions.
What size sheets fit an adjustable bed frame?
Adjustable bed frames typically require Split King or Split California King sheet sets, which include two separate fitted sheets instead of one connected piece.
Is California King the same as King size?
No, California King is longer and narrower (72" x 84") compared to standard King (76" x 80"), designed specifically for taller sleepers.
How much extra room does a King bed have compared to a Queen?
A King mattress is 16 inches wider than a Queen while keeping the same 80-inch length, giving each sleeper significantly more shoulder space.
Bed Sheet Sizes Guide: Twin, Full, Queen, King & California King (Canada 2026)
Buying the wrong sheet set size is one of the most common bedding mistakes — sheets that are too small pull off the mattress corners, while oversized sheets bunch up uncomfortably. This guide breaks down every standard mattress size in Canada so you can order the right sheet set the first time.
Standard Bed Sheet Sizes Chart
How to Measure Your Mattress Before Buying
Measure the length, width, and depth (height) of your mattress from edge to edge, including any mattress topper you regularly use. This depth measurement is the most commonly overlooked detail — a fitted sheet with too shallow a pocket will pop off the corners overnight.
Steps to measure correctly:
Twin vs Twin XL — What's the Difference?
Twin and Twin XL share the same width (39 inches) but differ in length — Twin XL is 5 inches longer, matching most dorm and adjustable bed frames. Buying a regular Twin sheet set for a Twin XL mattress will leave the sheet too short at the foot of the bed.
Queen vs King vs California King
Split King Sheet Sets Explained
Split King sheet sets include two separate twin XL–sized fitted sheets instead of one large fitted sheet, designed for adjustable bed frames where each side moves independently. The flat sheet and pillowcases in a split king set are usually standard king-sized to fit the full bed width.
Frequently Asked Questions
How do I know what size sheets to buy for my mattress?
Measure your mattress's length, width, and depth, then match those measurements to the standard sizing chart — depth is especially important if you use a mattress topper.
What's the difference between Queen and King sheet sets?
King sheet sets are wider than Queen sets to fit the extra width of a King mattress, while the length stays the same at 80 inches for both sizes.
Do I need special sheets for a mattress topper?
Yes, if your topper adds more than an inch or two of height, look for "deep pocket" sheet sets with a 14–16 inch fitted sheet depth to avoid the sheet slipping off.
Can I use a Full-size sheet set on a Queen mattress?
No, a Full sheet set is too narrow and short for a Queen mattress and won't fit properly — always match the sheet set size exactly to your mattress dimensions.
What size sheets fit an adjustable bed frame?
Adjustable bed frames typically require Split King or Split California King sheet sets, which include two separate fitted sheets instead of one connected piece.
Is California King the same as King size?
No, California King is longer and narrower (72" x 84") compared to standard King (76" x 80"), designed specifically for taller sleepers.
How much extra room does a King bed have compared to a Queen?
A King mattress is 16 inches wider than a Queen while keeping the same 80-inch length, giving each sleeper significantly more shoulder space.