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Bedroom · Size Guide

Bedding Size Chart: Sheet, Comforter and Duvet Sizes for Every Bed

Every bed size in inches and centimeters, with the flat sheet, comforter, duvet cover, set and pillows that go on it, and the two traps that send new bedding back.

By Penny · Size guide · inches and cm · Updated October 2026

Some links here are affiliate links. If you buy through them, I may earn a small commission at no extra cost to you, and I only point to things I'd buy myself.

Bed sheet sizes, the short answer

Bedding sizes follow the mattress: a queen is 60 × 80 inches (152 × 203 cm), a king 76 × 80 (193 × 203 cm), a full 54 × 75 (137 × 191 cm). Your bed is a queen? Buy a queen set. If the mattress plus topper is over 12 inches, check that the fitted sheet "fits up to" your height.

The rule to remember: Buy fitted sheets by your mattress size and height, and a duvet cover by the inches on your insert's label, never by the name of the bed.

For a queen, the whole shopping list fits on a sticky note:

  • a queen comforter set, or a king comforter if you like it to hang low
  • queen sheets deep enough for your mattress
  • two queen pillows
  • two Euro shams to stand behind them

Ready to pick one? Here are the bedding sets I'd buy.

Not a queen? Find your bed in the chart just below, then look for its row in each table after it.

Bed sheet sizes chart (inches and cm)

Sheets are sold by mattress size, so this chart names your sheets too. Don't worry if yours measures an inch off: one that comes out at 59 or 61 inches wide is still a queen, and queen fitted sheets are cut with that slack in mind.

Standard mattress sizes in inches and centimeters
SizeMattressBest for
Twin38 × 75 in97 × 191 cmKids, bunk beds, daybeds
Twin XL38 × 80 in97 × 203 cmDorms, tall teens, split king
Full54 × 75 in137 × 191 cmOne adult, guest rooms
Queen60 × 80 in152 × 203 cmCouples, most bedrooms
King76 × 80 in193 × 203 cmCouples who want room
California King72 × 84 in183 × 213 cmTall sleepers, narrower rooms
Width × length of the mattress itself, not the frame.

A full is only 6 inches narrower than a queen, which is why full sheets look like they might stretch over a queen and never do.

Mattress sizes to scale, in inches and cm38 × 75 in97 × 191 cmTwin38 × 80 in97 × 203 cmTwin XL54 × 75 in137 × 191 cmFull60 × 80 in152 × 203 cmQueen76 × 80 in193 × 203 cmKing72 × 84 in183 × 213 cmCalifornia King1 ft (30 cm), same scale for every bed
Every mattress size drawn to one scale, with pillows at their real size: standard 20 × 26 in, queen 20 × 30 in, king 20 × 36 in.

Bedding size chart: flat sheets and comforters by bed

Flat sheets and comforters come in ranges because brands don't agree. One company's queen comforter is 88 inches square, another's is 96 × 96. Neither is wrong, but on the same bed the second one hangs 4 inches lower on each side. So read the inches on the listing, not just the size name.

Flat sheet and comforter or duvet for each bed
BedFlat sheetComforter
Twin66 × 96 in168 × 244 cm66-68 × 86-90 in168-173 × 218-229 cm
Twin XL66 × 102 in168 × 259 cm66-68 × 90-92 in168-173 × 229-234 cm
Full81 × 96 in206 × 244 cm80-88 × 86-90 in203-224 × 218-229 cm
Queen90-96 × 102 in229-244 × 259 cm88-96 × 88-96 in224-244 × 224-244 cm
King102-108 × 102-114 in259-274 × 259-290 cm102-110 × 88-96 in259-279 × 224-244 cm
California King102-108 × 110-114 in259-274 × 279-290 cm102-110 × 92-98 in259-279 × 234-249 cm
Two numbers in a cell? That is how far brands drift on the same size name.

Comforter and duvet cover sizes: should you size up?

A comforter has to cover the top of the mattress, then fall down both sides. So the width you need is the mattress width, plus twice its height, plus the drape you like.

Take a queen with a 12 inch mattress: 60 + 12 + 12 = 84 inches just to reach the bottom edge. A 90 inch comforter leaves you 3 inches past it on each side. Not much.

Want to hide the box spring or the frame? Size up. A king comforter on a queen bed looks generous, not sloppy. Or keep your size and add a bed skirt.

Duvet covers work the other way: here, sizing up is the mistake. "Queen" covers two different inserts. One measures 88 × 88, another 92 × 96, and a cover cut for one sags or strains on the other. Read the size on the insert's label and match the cover to it, or take one an inch or two smaller for a plumper look. Never bigger, or the insert slides into a lump at the foot of the bed.

Duvet cover and bed skirt for each bed
BedDuvet coverBed skirt (top panel)
Twin66-68 × 86-90 in168-173 × 218-229 cm39 × 75 in99 × 191 cm
Twin XL66-68 × 90-92 in168-173 × 229-234 cm39 × 80 in99 × 203 cm
Full80-88 × 86-90 in203-224 × 218-229 cm54 × 75 in137 × 191 cm
Queen88-92 × 88-96 in224-234 × 224-244 cm60 × 80 in152 × 203 cm
King102-108 × 88-96 in259-274 × 224-244 cm78 × 80 in198 × 203 cm
California King104-110 × 92-98 in264-279 × 234-249 cm72 × 84 in183 × 213 cm
The top panel is the flat part under the mattress. The drop is the part you see, usually 14 to 18 inches: measure from the top of the box spring to the floor.

If you still need the insert itself, here are the budget duvet inserts I'd buy, with their real dimensions.

What's in a bedding set, by size

The size on a set tells you how big the comforter is. The piece count tells you what else is in the bag. A 3-piece set is the comforter and two shams. A 7-piece, or a bed-in-a-bag, adds the flat sheet, the fitted sheet and the pillowcases, and some throw in Euro shams or a bed skirt.

What comes in a bedding set, by bed size
BedComforter setA bed-in-a-bag adds
Twin, Twin XLComforter, 1 standard shamFlat and fitted sheet, 1 pillowcase
FullComforter, 2 standard shamsFlat and fitted sheet, 2 pillowcases
QueenComforter, 2 standard or queen shamsFlat and fitted sheet, 2 pillowcases
King, California KingComforter, 2 king shamsFlat and fitted sheet, 2 king pillowcases

A bed-in-a-bag is the quickest way to make a whole bed match. Check its fitted sheet like any other, though: if its "fits up to" number is lower than your mattress, keep the comforter and shams and buy the fitted sheet on its own. Once you know your size, here are the sets I'd buy.

Fitted sheet sizes: the pocket depth matters more than the name

The reason a brand-new fitted sheet pops off the corner at 3 a.m. is almost always height. Measure your mattress with the topper on, then check the listing.

Standard sheets often fit mattresses up to 12 inches, and many now go to 14 or 15. "Deep pocket" is a label, not a size: brands put it on anything from 14 to 22 inches. Skip the label and find the number. It comes in one of two styles:

  • "Fits up to 16 inches" is the mattress height the sheet takes. Compare it straight with yours.
  • "14 inch pocket" is the fabric itself. It needs about 2 inches more than your mattress, so the elastic can wrap underneath.

So a 12 inch mattress wants a sheet that "fits up to 12 inches", or a 14 inch pocket. Same sheet, two ways of saying it.

Fitted sheets by mattress height, in both listing styles
Mattress + topperListing says “fits up to”Or a pocket of
Up to 12 inUp to 30 cm12 in or more30 cm or more14 in or more36 cm or more
13-16 in33-41 cm16 in or more41 cm or more18 in or more46 cm or more
17-20 in43-51 cm20 in or more51 cm or more22 in or more56 cm or more
Between two rows? Go up one: cotton can shrink a little in the first hot wash.
10 in mattress, 12 in pocket

10 in mattress

12 in pocket: tucks under

25 cm mattress, 12 in (30 cm) pocket

15 in mattress, 12 in pocket3 in

15 in mattress

12 in pocket: pops off

38 cm mattress, 12 in (30 cm) pocket

15 in mattress, 17 in pocket

15 in mattress

17 in pocket: tucks under

38 cm mattress, 17 in (43 cm) pocket

Side view, heights to scale.

Going up a size doesn't help: a king only bunches at the sides.

Bedsure Deep Pocket Queen Sheet Set

Bedsure Deep Pocket Queen Sheet Set

A queen set cut for deep mattresses: the listing says it fits mattresses up to 21 inches tall, so a 15 inch mattress with a 3 inch topper still has room to spare.

Gorilla Grip Fitted Sheet Holders, 4 Pack

Gorilla Grip Fitted Sheet Holders, 4 Pack

If you love the sheets you have and only the corners slip, four adjustable straps clip them together under the mattress for a lot less than new sheets.

Pillow sizes: standard, queen and king

Two queen pillows side by side measure 60 inches, the exact width of a queen. That is why a queen bed looks fuller with them; two standard pillows leave a gap in the middle. Euro shams are the big squares that stand behind the sleeping pillows: two on a full or queen, three on a king. They are what takes a bed from made to finished.

Pillow sizes and how many go on each bed
PillowSizePer bed
Standard20 × 26 in51 × 66 cmTwin: 1, Twin XL: 1, Full: 2
Queen20 × 30 in51 × 76 cmQueen: 2
King20 × 36 in51 × 91 cmKing: 2, California King: 2
Euro sham26 × 26 in66 × 66 cmDecorative, 2 to 3 behind the pillows
Pillowcases and shams are cut a few inches longer than the pillow they fit.

The sizes people mix up: full vs double, California king vs king, and split king

Full and double: the same bed. 54 × 75 inches, two names. Plenty of comforters are sold as "full/queen", generous on a full and just enough on a queen.

California king vs king: not bigger, just different. A Cal king is 4 inches narrower and 4 inches longer, so king sheets bag on it and Cal king sheets won't reach the corners of a king. Cal king sets are rarer in budget lines, so check the size before you fall for a color.

Split king: two twin XLs side by side. They often sit on an adjustable base. Together they make the same 76 × 80 as a king, so you need two twin XL fitted sheets (one per side, so each moves on its own), then one king flat sheet and a king comforter over both.

Twin vs twin XL: 5 inches of length. Twin sheets on a twin XL pull off the foot every night; twin XL sheets on a twin are only loose at the end.

Other mattress sizes: crib, full XL, Olympic queen

A few beds sit between the standards. Their sheets exist, but in fewer colors and rarely in budget sets, so check the size name on the listing word for word.

Other mattress sizes
SizeMattressWhat to know
Crib28 × 52 in71 × 132 cmCrib sheets only; a snug fit is a safety rule
Full XL54 × 80 in137 × 203 cmFull width, queen length; full sheets come up short
Olympic queen66 × 80 in168 × 203 cm6 inches wider than a queen; queen sheets strain
California queen60 × 84 in152 × 213 cmQueen width, Cal king length

How to measure your mattress for sheets

You need a tape measure and two minutes.

  1. Strip the bed down to the mattress. Leave the topper or pad on if you sleep with one, since the sheet has to cover it too.
  2. Measure the width across the top, from side seam to side seam.
  3. Measure the length from the head to the foot.
  4. Measure the height in the middle of one side, from the bottom seam to the top of the topper.
  5. Read it against the charts. Width and length give you the size name. Height is your "fits up to" number, or add 2 inches for a pocket depth.

FAQ

Can I use full sheets on a queen bed?

Not the fitted sheet: it is 6 inches too narrow and 5 inches too short. A full flat sheet covers a thin queen mattress but barely tucks in.

How can I figure out what size bed I have?

Measure the mattress, not the frame, and find its width and length in the first chart. The tag sewn into the side usually prints the size name too.

Why don't my queen sheets fit my queen bed?

Almost always the pocket. Your mattress plus topper is deeper than the sheet was cut for, so the corners ride up overnight. Measure the height and buy the same size with a deeper pocket.

Will bigger sheets fit a deeper mattress?

No. A king is wider, not deeper, so it bunches at the sides and the corners still ride up. Keep your size and buy a deeper pocket.

What is split king bedding?

Two twin XL fitted sheets, one per side, under one king flat sheet and one king comforter.

What size duvet cover do I need?

The size on your insert's label, never the bed's name: two "queen" inserts can differ by several inches. An inch or two smaller looks plumper.

What should a bedding set include?

At least the comforter and its shams. A bed-in-a-bag adds the sheets and pillowcases, which makes it the easy way to change a whole bed at once.

The ranked roundup

You know your size. These are the ten sets I'd buy, from cotton to velvet, and how to spot the thin, shiny ones before they arrive.

See the bedding sets

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