Compare Twin, Twin XL, Double, Queen, King and split king mattress dimensions in inches and centimetres. Find space for better sleep—and room to live.
These are common nominal North American dimensions used in Canada. Actual dimensions can vary by brand and model; Twin widths may be listed as 38 or 39 inches. Confirm the exact product measurements before ordering, especially for an existing frame or adjustable base.
| Mattress size | Inches | Centimetres, approx. | Consider it for |
|---|---|---|---|
| Twin / Single Shop Twin ↗ |
38 × 75 | 97 × 191 | A compact choice for one sleeper. |
| Twin XL Shop Twin XL ↗ |
38 × 80 | 97 × 203 | Extra length for one sleeper; one half of a split king. |
| Double / Full Shop Double ↗ |
54 × 75 | 137 × 191 | More width for one sleeper in a smaller room. |
| Queen Shop Queen ↗ |
60 × 80 | 152 × 203 | A balance of sleeping space and room footprint. |
| King Shop King ↗ |
76 × 80 | 193 × 203 | More width for couples who want extra space. |
| Split King Explore split-king bases ↗ Shop Twin XL mattresses ↗ |
76 × 80 | 193 × 203 | Two 38 × 80 in Twin XL mattresses side by side. |
Mattress dimensions do not include the bed frame, headboard or footboard. Not every model is available in every size. Reference: standard mattress size overview.
Two nominal 38 × 80 inch Twin XL mattresses placed side by side make a 76 × 80 inch split king—the same footprint as a standard king.
Pair them with two compatible Twin XL adjustable bases so each person can raise or lower their side independently. Choose adjustable-compatible mattresses and confirm the dimensions and features of the complete setup with our team.
Two standard Twins make a nominal 76 × 75 inch surface. That is five inches shorter than a standard king, so they are not a standard split-king substitute.
A split king typically uses a Twin XL fitted sheet on each mattress. Check sheet depth against mattress thickness and ask about bedding that suits independent adjustment.
Both offer a compact width. Twin XL adds five inches of length, useful if a standard Twin feels too short. Check the frame length too.
A Queen is six inches wider and five inches longer than a Double. Consider both sleeping space and the room needed to walk around the bed.
A standard King is sixteen inches wider than a Queen, with the same nominal length. Measure the larger frame footprint and your delivery route.
Measure the frame’s usable mattress opening, width and length. Check support requirements, height limits and the manufacturer’s size specifications.
Include the frame, bedside tables and open drawers. Leave comfortable walking space and clearance for doors, closets and an adjustable base’s movement.
Measure doorways, stair turns, hallways and elevator openings. Tell our team about tight access before scheduling delivery.
RV, boat, three-quarter and other custom beds may differ from standard dimensions. Measure the actual space, including corner cuts, curves and maximum thickness. Send a sketch or photo for a personalized quote.
Zeds Beds is 100% Island owned and operated. Our Dreamlife mattresses are Canadian made, manufactured in British Columbia.
Visit us for help choosing your size, comfort and complete sleep setup.
Victoria · 941 Fort Street ↗
Langford · 113–2854 Peatt Road ↗
Yes. Full and Double commonly refer to the same nominal 54 × 75 inch mattress size.
Yes. Two nominal 38 × 80 inch Twin XL mattresses side by side form a 76 × 80 inch split king. Confirm actual mattress and base dimensions before ordering.
No. A California King is nominally 72 × 84 inches, while a standard King is 76 × 80 inches. Frames and bedding must match. Contact us to confirm model availability or custom options.
Thickness does not change nominal width or length, but it affects fitted-sheet depth, bed height, frame fit and adjustable-base compatibility. Check all three dimensions.
Yes. Bring your measurements to our Victoria or Langford showroom. Call 250-894-9337 to confirm a particular model or size on display before visiting.
BC-made mattresses. Local advice. Factory-direct value.
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