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Bedding Sizes and Layering Guide

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Bedding Sizes and Layering Guide

A bedding sizes guide with sheet, duvet, comforter, and sham measurements by mattress size, plus the order of layers for a bed that looks made every morning.

Most bedding is sized to your mattress, so the first thing to know is your mattress size; from there the sheets, duvet, and comforter follow standard dimensions. One catch trips people up: top covers don't always match the bed name. A queen duvet and a queen comforter aren't the same size, and many people deliberately size up a duvet for a fuller drape. As for layering, the order is simple and never changes — fitted sheet, flat sheet, then your duvet or comforter, then pillows back to front, with an optional throw across the foot. Get the sizes and the order right and the bed looks made even when you've only half-made it.

Here are the size charts by mattress, the duvet-versus-comforter distinction, and the layering order step by step.

Mattress sizes (the starting point)

Everything else is measured against these.

Size Mattress (W × L)
Twin 38 × 75 in.
Twin XL 38 × 80 in.
Full / Double 54 × 75 in.
Queen 60 × 80 in.
King 76 × 80 in.
California King 72 × 84 in.

If you're still choosing the mattress itself — firmness, type, and how to buy one online — start with our mattress buying guide.

Sheet sizes by mattress

Fitted sheets are sized to the mattress; the number that matters most is the pocket depth, which must clear your mattress (plus any topper). Flat sheets run a bit larger than the mattress so they tuck.

Mattress Fitted sheet (mattress dim.) Pocket depth to check Flat sheet (approx.)
Twin 38 × 75 in. 7–21 in. 66 × 96 in.
Twin XL 38 × 80 in. 7–21 in. 66 × 102 in.
Full 54 × 75 in. 7–21 in. 81 × 96 in.
Queen 60 × 80 in. 7–21 in. 90 × 102 in.
King 76 × 80 in. 7–21 in. 108 × 102 in.
Cal King 72 × 84 in. 7–21 in. 102 × 110 in.

Pocket depth matters more than people expect. Standard pockets fit mattresses up to about 14 inches; deep-pocket sheets handle 15 to 21 inches, which you'll want with a pillow-top or a topper. A sheet that won't reach the corners pops off all night.

Duvet vs. comforter (and why sizing differs)

These two get used interchangeably, but they're different items, and they're sized differently.

  • A comforter is a finished, all-in-one top layer — quilted fill with a sewn outer. You use it as-is. Comforters are usually cut wider than the mattress so they drape over the sides without a cover.
  • A duvet is a plain insert that goes inside a removable duvet cover (like a giant pillowcase). You wash the cover instead of the whole thing. Insert and cover should match in size.

The key point: comforters and duvets in the same "size" name are often different dimensions, because comforters are built to drape and duvet sizes can be sized up for a fuller look.

Bed Comforter (typical) Duvet insert / cover (typical)
Twin / Twin XL 66–68 × 86–90 in. 64–68 × 86–90 in.
Full / Queen 86–88 × 96–100 in. 88 × 88–92 in.
King / Cal King 102 × 86–94 in. 104 × 88–92 in.

Sizing tip — go up a size for drape. On a deep mattress, or if you simply like more fabric falling over the sides, use the next size up: a king duvet on a queen bed, for example, gives a generous, hotel-style hang. Match the duvet cover to the insert, not to the bed name.

Pillow and sham sizes

Sleeping pillows and the shams or cases that cover them come in their own standard set. Decorative shams (Euro) layer behind your sleeping pillows.

Pillow / sham Size
Standard pillow / sham 20 × 26 in.
Queen pillow / sham 20 × 30 in.
King pillow / sham 20 × 36 in.
Euro sham (decorative) 26 × 26 in.
Lumbar / decorative 12 × 20 in. or 14 × 22 in.

How many of each, by bed:

Bed Sleeping pillows Euro shams (back layer)
Twin 1 standard 1
Full / Queen 2 standard or queen 2
King / Cal King 2 king 3

How to layer a bed (the order never changes)

A well-layered bed is just the right pieces in the right order. From the mattress up:

  1. Mattress protector (optional but worth it) — fitted, washable, guards the mattress.
  2. Fitted sheet — sized to the mattress, with a pocket deep enough to grip.
  3. Flat sheet — patterned or contrasting if you want; tuck the sides and foot, fold the top down over the duvet later.
  4. Blanket or coverlet (optional) — a lightweight layer for warmth and texture, folded across the lower third in warmer months.
  5. Duvet or comforter — the main visual layer. Pull it up most of the way, then fold the flat sheet's top edge back over it for a crisp line.
  6. Pillows, back to front:
  • Euro shams standing upright against the headboard,
  • sleeping pillows (in shams or cases) in front,
  • one or two decorative squares,
  • a lumbar at the very front.
  1. Throw blanket (optional) — folded in thirds or draped at an angle across the foot of the bed for that finished, layered look.

The classic queen "made bed": fitted sheet, flat sheet, comforter or duvet, two Euro shams, two sleeping pillows, a decorative square, and a throw at the foot. Descending pillow heights from back to front are what give the bed depth.

Quick fixes for a better-looking bed

  • Iron or steam the duvet cover and flat sheet once — crisp linens read as "made" more than anything else.
  • Size the duvet up if the drape looks skimpy; it's the cheapest upgrade to the whole bed.
  • Layer textures, not just colors — a percale sheet, a chunky knit throw, and a matte coverlet feel richer than three smooth layers.
  • Fold the throw in thirds and lay it across the lower third of the bed; a throw flung on flat looks like an afterthought.

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The short version

Start from your mattress size; sheets, duvets, and comforters follow it — but check fitted-sheet pocket depth (15–21 inches for thick mattresses) and remember that comforters and duvets in the same "size" often differ, with many people sizing duvets up for a fuller drape. Layer in a fixed order: fitted sheet, flat sheet, duvet or comforter, then pillows back to front, with an optional throw at the foot. Right sizes, right order, one steam of the linens, and the bed looks made every morning.

Build the bed from the sheets upShop Bed & Bath.

Frequently asked questions

What size duvet do I need for a queen bed?

A standard queen duvet insert and cover run about 88 × 90 inches. For a fuller drape over the sides — especially on a deep mattress — many people size up to a king duvet (about 104 × 90 inches) on a queen bed.

What's the difference between a duvet and a comforter?

A comforter is a finished, all-in-one quilted top layer used as-is. A duvet is a plain insert that slides into a removable, washable cover. Comforters are usually cut wider to drape; duvet inserts and covers should match each other in size.

Why won't my fitted sheet stay on?

Almost always a pocket-depth mismatch. Standard fitted sheets fit mattresses up to about 14 inches; if you have a thick mattress, pillow-top, or topper, you need deep-pocket sheets (15–21 inches) so the corners reach.

What's the right order to layer a bed?

Mattress protector, fitted sheet, flat sheet, optional blanket or coverlet, then the duvet or comforter, then pillows from back to front (Euro shams, sleeping pillows, decorative squares, lumbar), finished with a throw at the foot.

How many pillows go on a made bed?

A queen bed typically uses two Euro shams as the back layer, two sleeping pillows, a decorative square, and a lumbar — five or six pieces in descending height. A king adds a third Euro sham; a twin scales down to one of each.

Do sheets come in California King?

Yes. California King is narrower but longer than a standard King (72 × 84 vs. 76 × 80 inches), so it has its own sheet, duvet, and comforter sizes. Buy bedding labeled Cal King specifically — standard King won't fit the extra length.