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Duvet Sizes and Dimensions Guide

Tyler Joseph (TJ) Thomas


Adding a duvet to your bedroom may be all you need to make night time more enjoyable. Duvets are a warm and fluffy lightweight alternative to a basic comforter. Not to mention, duvets are incredibly versatile, as a duvet cover makes it easier to change your bedding style.

If you are thinking about including a duvet in your bedroom set up, it may be challenging to find the right size. In this article, we discuss duvet sizes compatible with your mattress and some factors you should consider before your next purchase.

What is a Duvet?

The word ‘duvet’ is French for ‘down,’ a fine coating layer found under geese’s exterior feathers. Originally, duvets were European styled comforters, featuring a soft flat bag filled with down. At first, people sought out down for its usefulness as a thermal insulator; but now, duvets contain other fills, such as wool or feathers. Though these fills are natural, they are not the best choice for those with allergies. It’s common for down, or feather fills to trigger allergic symptoms such as sneezing, coughing, or a runny nose. However, allergy-sufferers can turn hypoallergenic fillings made with synthetic materials to help alleviate these symptoms.

Duvets are often confused with the standard comforter. Though the words are sometimes used interchangeably, the two items have distinct differences. Comforters have less filing and tend to feel a lot flatter than duvets. Additionally, duvets are a bit plain but are usually purchased with decorative covers. Duvets covers protect against stains and spills, and they’re washing-machine friendly.

Note: Even if you don’t buy a duvet, a cover can still be a good investment for your comforter. Not only do these covers keep your comforter clean, but they also add flair to your bedding.

Duvet Sizes

When purchasing a duvet, we suggest choosing one measuring 12 inches longer and 16 inches wider than your bed. Keep in mind, you don’t want to choose an overly-large duvet because it will hang too far below your bed frame and drag on the floor. Ideally, your duvet should drape over the sides of your bed and hide your mattress foundation.

Following this rule may work for some, but you’ll want to consider a larger size if you have a taller bed. Measuring your mattress’s height and bed frame before shopping will guide you in selecting the proper size.

Typically, duvets come in twin, full, queen, and king sizes. The height and thickness of your mattress will determine the duvet size you need. Thicker mattresses may require a larger sized duvet to cover the bed’s entirety.

For example, a twin bed with a depth over 15 inches may be compatible with a full sized duvet. Plus, some standard king or queen duvets are too short and expose the sides of your bed. As a solution, manufacturers offer jumbo sizes to pair better with extra-thick mattresses. In the next section, we discuss the different duvet sizes to help you choose your bed’s best fit.

Duvet SizeDimensions (IN)Dimensions (CM)
Twin64 inches by 89 inches to 68 inches by 88 inches162.56 cm by 226.06 cm to 172.72 cm to 223.52 cm
Full80 inches by 89 inches to 90 inches by 94 inches203.2 cm by 226.06 cm to 228.6 cm to 238.76 cm
Queen88 inches by 90 inches to 90 inches by 94 inches223.52 cm by 228.6 cm to 228.6 cm to 238.76 cm
Jumbo Queen102 inches by 100 inches259.08 cm by 254 cm
King104 inches by 90 inches to 104 inches by 94 inches264.16 cm by 228.6 cm to 264.16 cm by 238.76 cm
Jumbo King114 inches by 100 inches to 116 inches by 100 inches289.56 cm by 254 cm to 294.64 cm to 254 cm

Twin Size

A twin size duvet ranges from 64 inches by 86 inches to 68 inches by 88 inches. Twin duvets are compatible with twin size mattresses and most twin XL beds up to 15 inches high. Twin XL’s are typically used by taller adults and children who need more space to move around while asleep. These beds are 5 inches longer than the standard twin, so twin duvets don’t pair well with twin XL mattresses; instead, you’ll need a larger size to cover the entirety of your bed.

Full Size

Full (or double) size duvets range from 80 inches by 89 inches to 90 inches by 94 inches. These duvets are a better option for twin and twin XL mattresses thicker than 15 inches and are compatible with most full size beds. Full size mattresses are frequently used as guest beds and are an ideal purchase for a single adult. They are slightly wider than twin beds, measuring 54 inches by 75 inches, providing additional room to stretch out.

Queen Size

Duvets for queen mattresses start at about 88 inches by 90 inches and can be as large as 90 inches by 94 inches. Queen beds are usually purchased for couples, as they provide enough space for both individuals to sleep peacefully. A typical queen mattress measures at 60 inches by 80 inches and can have a mattress depth of about 12 inches.

Jumbo Queen

A jumbo size queen duvet is 12 to 14 inches wider and longer than queen duvets, measuring 102 inches by 100 inches. These duvets are an excellent option for those who have thick pillow-top mattresses. These mattresses have extra padding, so you’ll need a size larger than the standard queen. It’s best to take note of the thickness of your bed before you make your purchase. In many cases, mattresses with a depth of over 12 inches require a jumbo size.

King Size

King size duvets range from 104 inches by 90 inches to 104 inches by 94 inches. Most kings sized beds or California king beds pair up nicely with these duvets. The size of a standard king bed is 72 inches by 84 inches, while California kings are a bit longer, measuring at 72 inches by 84 inches.

Cal kings and standard kings are the largest mattresses on the market. King mattresses are perfect for couples who need extra room at night and make excellent family beds if your little ones sleep with you now and again.

Jumbo King Size

Just like a queen mattress, king beds vary in height and need larger sized duvets. Jumbo king duvets are a solution for king beds taller than 14 inches and Cal king beds taller than 16 inches. The dimensions of these duvets range between 114 inches by 100 inches to 116 inches by 100 inches.

What to Consider Before Purchasing a Duvet

Before purchasing a duvet, you should consider what will make you most comfortable. Duvets come in different materials and fillings to offer more or less warmth and appeal to a variety of sleep needs. In this next section, we highlight some of the more popular duvet cover fabrics and common duvet fillings.

Type of Materials

Heavy duvet materials, like down and feathers fillings, offer heat to keep you cozy throughout the night. If you do not like warm temperatures when you sleep, you need a lightweight duvet. It’s best to look at different fill materials and the cover fabric to determine what will keep you cold or warm at night.

The materials of the fill and cover fabric can also determine whether or not what you’re purchasing qualifies as a hypoallergenic duvet.

Cover Fabric

Duvets typically feature a shell material made from cotton. Cotton-based covers are lightweight and will keep you from getting too hot at night. These duvets are not only a budget-friendly option, but they also are easy to maintain. Additionally, there are natural materials like silk, designed to provide better airflow for sleepers. However, silk items may come with a higher price tag.

A few types of cover fabrics your duvet may feature include:

  • Pima, Supima Cotton: A high-quality long-staple fabric. Pima is planted in the Southwestern part of the U.S. These long, silky fibers produce a luxuriously soft fabric. The material is incredibly strong and is resistant to fraying, tearing, and fading.
  • Egyptian Cotton: An extra-long-staple cotton produced in Egypt. Egyptian Cotton has softer fibers and a thinner compound, making the material more porous. Air moves easily through these sheets, so you’ll be free of feeling stuffy or too warm at night.
  • Flannel: A fabric blend of wool and cotton. This cover fabric comes from soft, durable material, perfect for warming you up on a cold winter night. Not to mention, it is washer and dryer friendly, making for easier maintenance.
  • Silk: A natural fiber produced from the cocoons of mulberry silkworms. Silk duvets are expensive to buy and maintain as they must be dry cleaned. However, they have breathable qualities, making them a suitable option for sleepers who prefer a cooler environment.
  • Bamboo: An organic fabric made from bamboo fibers. It is a soft hypoallergenic fabric and is excellent for allergy-sufferers or those who have skin sensitivities. Bamboo is also a highly-sustainable resource and is growing in popularity due to its versatility and eco-friendliness.
  • Polyester: A petroleum-based synthetic fiber. Polyester is human-made and is less expensive than natural alternatives. Additionally, polyester is a wrinkle-resistant material and requires low maintenance.

Thread Count

A material’s thread count refers to the number of threads per square inch. Duvets shells require a thread count between 200 to 600. Generally, a higher thread count is an indication of the material’s softness and durability. However, if the material is made with short, low-quality thread, feather or down fillings can poke through.

We recommend purchasing a duvet with a 300 thread count cotton—preferably with 100 percent long-staple cotton. Duvets with longer staples have more durable threads, making them less likely to fray or wrinkle.

Inside Fill

Duvets can have either synthetic or natural fill materials. Synthetic fills accommodate people with allergies, while natural fills contain feathers or wool to provide you with warmth and comfort. In the next section, we outline each fill’s quality to help you find what works best for you.

Down Filling: Down feathers come from the underbelly of ducks and geese. Down feathers serve to keep these birds warm during the winter months, and this material is known for being ultra-cozy. Since soft fluffy fibers are effective in trapping and holding heat, they’re more insulating than exterior feathers.

When looking at duvets with down filling, consider the loftiness of a product. Loft measures fluffiness, and it specifically refers to the number of cubic inches one ounce of down fills. A down duvet’s loft can range from about 300 to 800 cubic inches per ounce. The higher the loft in the duvet typically means a higher percentage of whole down clusters. Items with more down clusters last longer and provide comfortable warmth.

Feather Filling: Feathers are the rigid plumes found on the outside of ducks and geese. They are much bulkier than down but, the fill material holds onto less air, allowing you to keep warm, but not too warm.

These duvets are a more affordable option than down, but they may require you to incur the added expense of a cover to keep feathers from slipping through the fabric. It’s rather common for feather quills to poke through duvet shells with low thread counts, so if your duvet’s outside fabric is lightweight, the extra layer of material provided by a cover will prevent those quills from poking you while you sleep.

Wool Filling: The structure of the wool is water-resistant, making it efficient in wicking away moisture from the skin. These duvets provide a comfortable environment for those who sweat or feel too warm while asleep. Wool is also hypoallergenic, making it an all-natural choice for buyers who struggle with night-time allergies.

Most wool comforters are machine washable, but you should wash wool on a cold cycle and use wool detergent when washing your duvet. Also, remember to look at the manufacturers washing directions to make sure there are no additional care requirements.

Synthetic Filling: Duvets with synthetic fill materials are another option for people with allergies. They are more affordable than natural duvets, with prices ranging between $35 to $140. Additionally, the synthetic material is lightweight and can be easily washed or dried without damage to the duvet.

Synthetic duvets are typically made from microfiber and hollow fiber material. Both options resemble the lofty qualities of natural fillings,  keeping sleepers warm cozy at night.

Microfiber Filling: Microfiber fillings are made from polyester fibers. The fibers are silky and are intended to be the human-made equivalent to natural down. Microfiber has the same lightweight fluffiness as down does, just at a more affordable price.

Typically, you can find a quality microfiber duvet for under $100, Some of the pricer duvets are upwards of $200. However, expensive microfiber comforters tend to resemble the high qualities of down more than cheaper ones.

Hollow Fiber Filling: Hollow fiber duvets are similar to the microfiber since they’re made with polyester, as well. However, each strand of fiber is hollow (hence the name “hollow fiber”) to provide sleepers with more breathability.

The hollow fiber material is washing machine-friendly and low maintenance as it is also easy to dry. The fiber-filling does not bunch up like some down and feather products do, so you won’t have to worry about fluffing your duvet. You can remove it from the dryer and place it on your bed without any hassle.

Mattress Size

Of course, consider your mattress size before buying a duvet. Though duvets come in twin, full, queen, and king sizes, you may need a different duvet size than your mattress size.

Use a tape measure to check the height, length, and width of your bed. Be sure to take off any sheets, blankets, or pillows to get the most accurate dimensions. However, if you have a mattress pad or topper, you’ll need to keep it on to accurately gauge your bed’s overall thickness.

Should I Use a Duvet Cover?

Duvet covers are a stylish accessory designed to protect duvet inserts from stains, spills, and other damage. Duvets can be difficult to clean, but covers are machine-washable and easier to maintain. Covers are similar to pillowcases, as they have a protective sleeve you can slip over your comforter and remove when needed.

Covers come in different colors and various types of fabrics. Some of the higher quality duvet covers are made with Egyptian cotton and can be pretty pricey.  While looking for a chic cover, you should also consider the thread count before making a purchase. A thread count of 250 to 500 will feel light-weight, as anything higher may feel stiff and less breathable.


What is the difference between a duvet and a comforter?

Duvets are usually thicker and provide more warmth than comforters. Typically, comforters come in many styles and designs, while duvets are plain. Duvets are also purchased with stylish duvet covers, used as a protective barrier for the sleeper. However, sleepers should consider pairing comforters with covers since covers can protect both bedding types and prevent wear and tear.

Do I need to purchase a duvet cover?

It is not necessary to purchase a duvet cover, but they do keep stains or spills from ruining your duvet. Washing your duvet can be complicated since it’s difficult to dry the filling inside. Duvet covers are useful because they protect your comforter and maintain cleanliness. You can easily remove your duvet cover and place it in the washing machine without worrying about damage to the material.

How do I know what size duvet to purchase?

Your duvet or comforter size should measure 16 inches wider and 12 inches longer than your mattress. Typically, twin, full, queen, or king duvets, can be used with their corresponding bed sizes. However, you should consider the height of your bed. If your mattress is over 12 inches tall, you may need a jumbo-size duvet because jumbo sizes are long enough to cover thicker mattresses and taller bed frames.

Can I machine wash my duvet?

Most duvets and covers are machine washable, but others may require dry cleaning. Before you wash your duvet, check the manufacturer instructions to ensure there are no restrictive care requirements. If you are using a washing machine, place it on a gentle cycle to keep the seams from fraying. Only use a small amount of laundry detergent and avoid bleach or brightening agents since these can strip the fabric of its protective down-proof layer.

Can I put my duvet in the dryer?

Duvets should be dried on low heat. Make sure the duvet is not damp or wet before you put it back on your bed. Keep in mind, it may take more than one drying cycle to completely dry your duvet. If this becomes a hassle or you are stressing the material, you can always air dry your duvet, instead. Placing your comforter in the shade will reduce the likelihood of the fabric becoming damaged over multiple dries. Once your duvet is finished drying, shake it out to prevent lumps from forming inside the cover material.


Duvets keep you cozy at night and add to the aesthetic of your bed. When you purchase a duvet, it should be wide enough to cover your body as you change sleeping positions. Furthermore, your duvet should effortlessly drape over the side of your bed. However, this can be a challenge for those with thicker mattresses, so you may need a jumbo size to accommodate your needs.

If you have trouble finding the right fit for your bed, check the specs to see the duvet’s exact dimensions. We even suggest reaching out to a sales associate or customer service representative to get assistance in choosing the best size duvet. However, it’s always best to measure your mattress before beginning your search for a duvet to guide you in the right direction.

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