Bed linen size guide: sheets, duvet covers and sets

Bed Linen Size Guide: Sheets, Duvet Covers, Sets and Fitted Sheets

Choosing the right size of bed linen seems simple, until you have to buy a duvet cover, a fitted sheet, a flat sheet or a complete set. Between 90x190, 140x190, 160x200, 180x200 beds, thick mattresses, 240x220 or 260x240 duvets, and deep-pocket fitted sheets, it's easy to make a mistake.

The real question is not just what size bed linen to choose, but rather how to choose a size appropriate for your mattress, duvet, sleeping habits, and desired look in the bedroom. A fitted sheet must stay put all night. A duvet cover must properly enclose the duvet. A bed set must contain the right pieces. And a flat sheet must be large enough to be tucked in comfortably.

In this guide, you will find the most common dimensions for adult, children's, and baby bed linen, with concrete advice on how to choose the right size of fitted sheet, duvet cover, flat sheet, pillowcase, bolster, mattress protector, bedspread, and bed linen set.

Table of Contents
  1. The direct answer: what size bed linen to choose?
  2. Complete table of bed linen sizes
  3. What size duvet cover to choose?
  4. What size fitted sheet to choose?
  5. How to choose the pocket depth of the fitted sheet?
  6. What size flat sheet to choose?
  7. What size pillowcase or bolster cover to choose?
  8. What size bed linen set to choose?
  9. Baby and children's bed linen: what dimensions?
  10. Thick mattresses, mattress toppers, adjustable beds: special cases
  11. Mistakes to avoid before buying bed linen
  12. Frequently asked questions
  13. Conclusion

The direct answer: what size bed linen to choose?

To choose the right bed linen size, you need to start with three simple measurements: the width of the mattress, the length of the mattress, and its thickness. These three pieces of information can already help avoid most mistakes, especially for fitted sheets and mattress protectors.

The fitted sheet must be exactly the same size as the mattress. For a 160x200 cm mattress, you need a 160x200 cm fitted sheet. For a 140x190 cm mattress, you need a 140x190 cm fitted sheet. The additional point to check is the pocket depth, which is the height of the corners of the fitted sheet. If the mattress is thick, a standard pocket depth may be too shallow.

The duvet cover, on the other hand, is chosen according to the size of the duvet, not just the size of the mattress. A 160x200 cm bed can accommodate a 240x220 cm or 260x240 cm duvet depending on the desired comfort. The cover must therefore match the duvet used.

The bed set must be checked piece by piece. Some sets contain only a duvet cover and two pillowcases. Others contain a flat sheet, a fitted sheet, or additional pillowcases. The word "set" does not always mean "complete ensemble."

Explanatory diagram showing the main elements of bed linen and how to choose their size.

To remember: the fitted sheet is chosen according to the mattress, the duvet cover is chosen according to the duvet, and the bed set should always be checked in detail. This is the simplest rule to avoid errors.

Complete table of bed linen sizes

This table provides the most common sizes for each mattress dimension. It allows you to quickly choose the appropriate fitted sheet, mattress protector, duvet cover, flat sheet, pillowcases, and bedspread.

Mattress Size Bed Type Fitted Sheet / Mattress Protector Recommended Duvet Cover Recommended Flat Sheet Recommended Pillowcases
60x120 cm Baby bed 60x120 cm Avoid depending on age, sleep sack often preferred Rarely useful Pillow not recommended for infants
70x140 cm Convertible baby bed 70x140 cm 100x140 cm or 120x150 cm depending on age Rarely useful 40x60 cm depending on age
80x160 cm Child bed 80x160 cm 140x200 cm if the child uses a real duvet 180x290 cm 40x60 cm or 50x70 cm
90x190 / 90x200 cm Single bed 90x190 or 90x200 cm 140x200 cm or 140x220 cm 180x290 cm 1 pillowcase 50x70 cm or 65x65 cm
120x190 / 120x200 cm Large single bed 120x190 or 120x200 cm 200x200 cm 240x300 cm 1 to 2 pillowcases depending on use
140x190 / 140x200 cm Standard double bed 140x190 or 140x200 cm 200x200 cm or 240x220 cm 240x300 cm or 270x300 cm 2 pillowcases 50x70 cm or 65x65 cm
160x200 cm Queen Size bed 160x200 cm 240x220 cm or 260x240 cm 270x300 cm or 280x310 cm 2 pillowcases 50x70 cm or 65x65 cm
180x200 cm King Size bed 180x200 cm 260x240 cm or 280x240 cm 280x310 cm or 300x320 cm 2 large pillowcases or 4 decorative pillowcases
200x200 cm Very large bed 200x200 cm 280x240 cm or 300x240 cm 300x320 cm 2 to 4 pillowcases depending on the desired look

This table provides a reliable basis, but it must then be adapted to two important points: the thickness of the mattress for the fitted sheet, and the desired duvet overhang.

Useful tip: if the bed is high or if you like a very enveloping look, choose a larger duvet. If the bed is low or placed in a small room, a shorter overhang may be more practical.

What size duvet cover to choose?

The size of the duvet cover must match the size of the duvet. If your duvet measures 240x220 cm, you need a 240x220 cm duvet cover. If it measures 260x240 cm, you need a 260x240 cm cover. A cover that is too large allows the duvet to move around inside. A cover that is too small compresses it and creates an uneven appearance.

The bed size primarily helps in choosing the right duvet size. For a 140x190 cm bed, a 200x200 cm duvet may be sufficient if you sleep alone or prefer a small overhang. For two people, the 240x220 cm format is often more comfortable. For a 160x200 cm bed, the 240x220 cm is suitable, but the 260x240 cm offers a better overhang.

Bed Size Simple Choice Comfortable Choice Generous Choice Advice
90x190 / 90x200 cm 140x200 cm 140x220 cm 200x200 cm 140x200 cm is sufficient for most single beds.
120x190 / 120x200 cm 200x200 cm 200x200 cm 240x220 cm 200x200 cm remains the most balanced format.
140x190 / 140x200 cm 200x200 cm 240x220 cm 260x240 cm For two, 240x220 cm is often more pleasant.
160x200 cm 240x220 cm 260x240 cm 260x240 cm or more 260x240 cm limits duvet disputes during the night.
180x200 cm 260x240 cm 280x240 cm 300x240 cm 260x240 cm is common, but a larger size provides more overhang.
200x200 cm 280x240 cm 300x240 cm 300x260 cm Very large beds often require less common sizes.
Do not do: choose a duvet cover simply because the bed measures 160x200 cm. You must first know if the duvet is 240x220 cm or 260x240 cm.

Visual comparison showing the overhang of different duvet sizes according to bed size

For a more elegant look, the duvet should slightly overhang on each side of the bed. For a more practical look, especially in a small room or on a low bed, a moderate overhang is perfectly sufficient.

What size fitted sheet to choose?

The fitted sheet is the piece of bed linen that requires the most precision. It must correspond exactly to the size of the mattress. For a 140x190 cm mattress, you need a 140x190 cm fitted sheet. For a 160x200 cm mattress, you need a 160x200 cm fitted sheet. You should not buy a larger size thinking you will gain comfort.

A fitted sheet that is too small pulls at the corners, comes off during the night, and strains the elastic. A fitted sheet that is too large creates wrinkles, moves under the body, and gives the impression of a poorly made bed. The right choice therefore depends on two elements: the exact size of the mattress and the pocket depth.

Mattress Size Fitted Sheet Size Standard Pocket Depth Recommended Pocket Depth for Thick Mattresses
90x190 cm 90x190 cm 25 to 30 cm 35 cm if mattress is thick
90x200 cm 90x200 cm 25 to 30 cm 35 cm if mattress is thick
140x190 cm 140x190 cm 25 to 30 cm 35 to 40 cm if mattress is thick or with mattress topper
140x200 cm 140x200 cm 25 to 30 cm 35 to 40 cm if mattress is thick or with mattress topper
160x200 cm 160x200 cm 30 cm 35 to 40 cm depending on thickness
180x200 cm 180x200 cm 30 cm 35 to 40 cm depending on thickness
200x200 cm 200x200 cm 35 cm 40 to 50 cm if bedding is very thick
Practical tip: if a mattress topper remains permanently on the bed, you must measure the combined height of the mattress and the mattress topper. The fitted sheet must be able to cover both without pulling.

How to choose the pocket depth of the fitted sheet?

The pocket depth of the fitted sheet corresponds to the height of the corners. This is what allows the sheet to cover the mattress. It is also one of the most frequently overlooked points when purchasing. However, a fitted sheet can have the correct width and length, but may not stay on if the pocket depth is too small.

To choose correctly, you need to measure the total thickness of the mattress. If the mattress is 25 cm high, a pocket depth of 30 cm is generally a minimum. If the mattress is very thick or accompanied by a mattress topper, it is better to choose a deep-pocket fitted sheet.

Mattress Height Recommended Pocket Depth For which type of bedding? To remember
10 to 15 cm 20 cm pocket Children's mattress, extra bed, thin mattress A pocket that is too deep can cause wrinkles.
15 to 20 cm 25 cm pocket Standard thin mattress Suitable for simple bedding.
20 to 25 cm 30 cm pocket Standard adult mattress This is the most common choice.
25 to 30 cm 35 cm pocket Thick mattress Safer if the fitted sheet often comes off.
30 to 35 cm 40 cm pocket Very thick mattress or mattress with thin mattress topper Measuring before purchase becomes essential.
35 cm and more 45 to 50 cm pocket Very thick bedding, mattress + mattress topper Choose a deep-pocket fitted sheet.
Common mistake: buying a 160x200 cm fitted sheet for a 160x200 cm mattress without checking the mattress thickness. The size may be correct, but the sheet may still not stay on.

Diagram showing how to choose the fitted sheet pocket depth according to mattress thickness.

What size flat sheet to choose?

The flat sheet must be larger than the mattress, as it needs to be able to be tucked in at the sides and foot of the bed. It can serve as a light layer in summer, a protection between the body and the duvet, or simply give a neater appearance to the bedroom.

Unlike the fitted sheet, the flat sheet is not chosen to exactly match the mattress size. You need to allow sufficient margin. The higher the mattress, the larger the flat sheet needs to be to stay securely in place.

Mattress Size Recommended Flat Sheet Ideal Use Advice
90x190 / 90x200 cm 180x290 cm Single bed Allows proper tucking without excess fabric.
120x190 / 120x200 cm 240x300 cm Large single bed More comfortable if the bed is occasionally used by two people.
140x190 / 140x200 cm 240x300 cm or 270x300 cm Standard double bed 270x300 cm offers more tuck-in room.
160x200 cm 270x300 cm or 280x310 cm Queen Size bed Choose the larger size if the mattress is thick.
180x200 cm 280x310 cm or 300x320 cm King Size bed A generous width prevents the sheet from coming untucked.
200x200 cm 300x320 cm Super King Size bed Check availability depending on brands.
Useful tip: if you like your beds well-tucked, choose the next size up. A slightly larger flat sheet is often more comfortable than one that's too small.

What size pillowcase or bolster cover to choose?

Pillowcases play an important role in comfort and the visual appeal of the bed. The two most common sizes are the 65x65 cm square pillowcase and the 50x70 cm rectangular pillowcase. The choice mainly depends on the pillow used and the desired effect.

The 50x70 cm pillowcase is often preferred for sleeping, as it corresponds to a rectangular pillow that supports the neck well. The 65x65 cm pillowcase is more voluminous and decorative. It gives the bed a plush appearance, especially when placed against the headboard.

Item Common dimensions Use Advice
Children's pillow 40x60 cm Children's bed To be chosen according to age and sleep habits.
Rectangular pillow 50x70 cm Daily sleep Sleek, modern, and comfortable format.
Square pillow 65x65 cm Comfort, reading, decoration Very common in France, perfect for adding volume to the bed.
Bolster 90, 140, 160, 180 or 200 cm Additional support or bed finish Choose a length close to the width of the bed.

For a double bed, the simplest is to plan for two pillows for sleeping. For a more decorative look, it's possible to add two cushions or two square pillows in front of the main pillows.

What size bed linen set to choose?

A bed linen set can refer to several things. This is precisely what causes many errors at the time of purchase. Some sets contain a duvet cover and two pillowcases. Others contain a flat sheet, a fitted sheet, and pillowcases. Still others are sold as complete sets, but their composition varies by brand.

Before buying a set, you must therefore check the size of each piece: duvet cover, fitted sheet, flat sheet, pillowcases, and possibly bolster cover. You must also check the number of pillowcases included, especially for a double bed.

Infographic showing the differences between a duvet cover set, a sheet set, and a complete set.

Set type What it often contains To check For what use?
Duvet cover set 1 duvet cover + 1 or 2 pillowcases Fitted sheet is often absent Ideal if you already have your fitted sheets.
Complete bed linen set Duvet cover + pillowcases + sometimes fitted sheet The exact composition Practical for renewing the entire bed.
Sheet set Flat sheet + fitted sheet + pillowcases Duvet cover may be absent Useful if you use a flat sheet and a blanket.
Children's set Children's duvet cover + 1 pillowcase Duvet and pillow size For children's bed or first "big bed."
What not to do: buy a set just because it says "2-person bed." You need to check if it contains a 200x200, 240x220 or 260x240 cm cover, as the comfort will not be the same.

For a 90x190 or 90x200 cm bed, a set with a 140x200 cm duvet cover and one pillowcase is suitable in most cases. For a 140x190 or 140x200 cm bed, a 240x220 cm set with two pillowcases is often more comfortable for two people. For a 160x200 cm bed, a 260x240 cm set offers a nice drape, especially if the bed is high.

Baby and child bed linen: what dimensions?

For a baby bed, safety and fit are the priority. The fitted sheet must be perfectly adapted to the mattress. It should not be too large, not wrinkle, and not come off easily. For very young children, a sleep sack is often preferred over a duvet, depending on age and usual sleeping recommendations.

For a child's bed, the choice depends on the transition to a big bed. Some children sleep in a 70x140 cm bed, others in an 80x160 cm bed, then in a 90x190 cm bed. At each stage, the fitted sheet must be adapted to the exact size of the mattress.

Bed Fitted sheet Duvet / duvet cover Pillowcase Advice
Baby cot 60x120 cm 60x120 cm Avoid for very young children depending on age Pillow not recommended for babies Prioritize a tightly stretched fitted sheet and a suitable mattress protector.
Evolutive baby bed 70x140 cm 70x140 cm 100x140 cm or 120x150 cm depending on age 40x60 cm depending on age Check that the duvet is not too large.
Child's bed 80x160 cm 80x160 cm 140x200 cm if the child is ready for a large duvet 40x60 cm or 50x70 cm Choose easy-to-wash linen.
Child's bed 90x190 cm 90x190 cm 140x200 cm 50x70 cm or 65x65 cm Practical size, easy to find in stores.

Thick mattresses, mattress toppers, adjustable beds: special cases

Some beds require special attention. Classic charts are useful, but they are not always enough. A very thick mattress, a mattress topper, a storage bed, or an adjustable bed can change the choice of bed linen.

Special case What to choose What to avoid Practical advice
Thick mattress Fitted sheet with deep pocket Standard pocket too shallow Measure the total height of the mattress.
Mattress + topper Fitted sheet with 40 cm or deeper pocket depending on thickness Forgetting the topper in the measurement Add mattress and topper heights.
Storage bed Duvet with moderate drape Bedspread too long that hinders opening Avoid fabrics that get caught in the mechanism.
Low bed Short or medium drape Duvet dragging on the floor A neat finish works better on a low bed.
High bed Larger duvet or generous bedspread Drape too short Choose a larger size if the bed base is visible.
Adjustable bed Two separate fitted sheets if two mattresses A single fitted sheet that pulls when the bed moves Adapt linen to each sleeping area.
Seasonal rental Standard sizes easy to replace Rare or hard-to-find formats Stick to simple dimensions: 90x200, 140x200, 160x200.
Practical tip: for a guest room or a rental, it is better to choose very standard sizes. It's simpler to buy replacement sets and quickly replace a damaged item.

Mistakes to avoid before buying bed linen

Most mistakes come from rushing a purchase. The color is appealing, the material seems nice, the size looks standard, then the linen doesn't fit the bed properly. To avoid this, take a few minutes to check the dimensions.

  • Choosing the duvet cover based only on the mattress: the cover must match the duvet.
  • Forgetting the thickness of the mattress: a fitted sheet might be the right size, but have too small a pocket.
  • Confusing 240x220 and 260x240: both can fit a 160x200 bed, but the look and drape will not be the same.
  • Buying a set without reading the details: the fitted sheet is not always included.
  • Taking a flat sheet that is too small: it might come untucked during the night.
  • Not checking the number of pillowcases: some single bed sets contain only one pillowcase, some double bed sets contain two.
What not to do: rely solely on the term "2-person bed." A 140x190 bed, a 160x200 bed, and an 180x200 bed are all 2-person beds, but they do not require the same bed linen dimensions.

The correct method is to measure the mattress, check the size of the duvet, look at the thickness of the mattress, and then read the exact composition of the set. These four checks prevent almost all errors.

What material to choose once the size is validated?

Once the dimensions are chosen, the material becomes the second important criterion. Cotton remains a safe bet for everyday use. Cotton percale gives a fresher and crisper feel. Cotton sateen provides a smoother and more luminous touch. Washed linen gives a natural, slightly wrinkled look, much appreciated in soft and warm bedrooms. Cotton gauze is more airy, soft, and relaxed.

Material Feel Main advantage For which room?
Cotton Soft, simple, familiar Easy to live with and maintain Adult, child, or guest room
Cotton percale Cool, matte, crisp Very pleasant for a neatly finished bed Elegant room or hotel style
Cotton sateen Smooth, supple, slightly luminous More refined look Chic bedroom or soft ambiance
Washed linen Supple, lively, naturally wrinkled Very beautiful decorative and breathable look Natural, seaside, or chic country bedroom
Cotton gauze Airy, soft, textured Soft and relaxed appearance Cozy bedroom or child's room

Size guarantees support and comfort. Material, on the other hand, provides touch, style, and ease of care. For a bed used every day, it is better to choose pleasant, breathable, and easy-to-wash linen.

Frequently asked questions about bed linen sizes

What size duvet cover for a 140x190 bed?

For a 140x190 cm bed, a 200x200 cm duvet cover may be suitable if sleeping alone or if a small overhang is desired. For two people, a 240x220 cm duvet cover is generally more comfortable.

What size duvet cover for a 160x200 bed?

For a 160x200 cm bed, the 240x220 cm size is standard. For a couple or for a more generous drape, 260x240 cm is often the best choice.

What size fitted sheet for a 160x200 mattress?

You need to choose a 160x200 cm fitted sheet. The width and length must exactly match the mattress. Then you need to check the pocket depth, especially if the mattress is thick.

What is the difference between 240x220 and 260x240?

260x240 cm is larger than 240x220 cm. It offers a better drape on the sides and at the foot of the bed. It is often more comfortable for a 160x200 cm bed used by two people.

How to know if a fitted sheet's pocket is deep enough?

You need to measure the total height of the mattress. For a 25 cm mattress, a pocket depth of 30 to 35 cm is recommended. With a mattress topper, you need to add both heights.

Does a bed linen set always include a fitted sheet?

No. Many sets only contain a duvet cover and one or two pillowcases. You should always read the detailed composition before purchasing.

What size pillowcase to choose: 50x70 or 65x65?

The 50x70 cm format is rectangular and often more practical for sleeping. The 65x65 cm format is square, more voluminous, and widely used to give the bed a soft and decorative look.

What size flat sheet for a 140x190 bed?

For a 140x190 cm bed, a 240x300 cm flat sheet may be suitable. For more ease, especially with a thick mattress, a 270x300 cm size may be more comfortable.

What size to choose for an adjustable bed?

For an adjustable bed with two separate sleeping areas, it is often preferable to use two separate fitted sheets and two separate mattress protectors. This allows each side of the bed to move freely.

Should the duvet cover be chosen according to the bed or the duvet?

The cover should be chosen according to the duvet. The size of the bed helps choose the duvet, but once the duvet is purchased, the cover must have the same dimensions as it.

Conclusion

To choose your bed linen well, you need to remember a simple rule: each piece has its own logic. The fitted sheet must exactly match the mattress. The duvet cover must match the duvet. The flat sheet must be large enough to be tucked in. The pillowcases must match the pillows. And the bed linen set must be checked in detail, as its composition varies depending on the models.

Before buying, measure your mattress, check its thickness, look at the size of your duvet, and choose the desired drape. These few checks prevent sheets that come loose, duvets that are too small, poorly filled covers, and incomplete sets.

Once the correct dimensions are validated, the choice becomes much simpler. All that remains is to choose the material, color, and style that match the ambiance of the bedroom.

To complete your room with suitable pieces, you can discover our selection here: Bed linen.