We may receive financial compensation for products purchased through links on this website. sleepjunkie.com is owned by Healthy Sleep, LLC and includes Amerisleep, LLC advertising. Learn more.

Bed Sheet Sizes and Dimensions

Mattress Resources
Read Time: 5 minutes

  • Bed sheet sizes vary based on mattress dimensions, and choosing the correct size is crucial to ensure a proper fit and avoid issues like bunching or sliding.
  • The standard bed sheet sizes include crib, twin, twin XL, full/double, queen, king, and California king, each with specific dimensions to match their respective mattresses.
  • Pillowcase sizes also vary for standard, queen, king, and body pillows, with dimensions tailored to fit different pillow sizes commonly used on beds.
  • Measuring your mattress accurately for length, width, and thickness, along with considering pocket depth for fitted sheets, is essential in selecting the right-sized bedding.

Bed sheets are a vital component of our sleep environment, providing comfort and protection for our mattresses. However, choosing the correct bed sheet size is vital to ensure an ideal match for your mattress. Even minor size differences can impact how well the sheets stay put on your bed, causing problems such as bunching or sliding. This detailed guide will delve into standard bed sheet sizes and offer guidance on measuring your mattress for an appropriate fit. Let’s dive in!

Understanding Bed Sheet Sizes

Bed sheet sizes differ based on the mattress dimensions, and it’s crucial to align them accurately to avoid any fitting complications. While comforters and flat sheets can have a slight size difference, the fitted sheet should match perfectly with your mattress to avoid bunching or falling off. Let’s take a look at the standard bed sheet sizes and their corresponding dimensions:

SizeFitted Sheet (in)Flat Sheet (in)Comforter (in)Bedskirt (in)
Crib28 x 52 28 x 52-54N/A 30-36 x 46-50
Twin38 x 7439-40 x 75-76 60-75 x 90-10268 x 86
Twin XL38 x 80 39-40 x 80-8660-75 x 102-11468 x 90
Queen60 x 8062 x 82-9292-102 x 88-11590 x 90
King76 x 8078 x 82-110 102-110 x 88-115104-106 x 90-92
California King72 x 84 73 x 84-85108-111 x 102-114102 x 96
Full/Double54 x 75 54-55 x 76-7884-90 x 90-9686 x 86

Crib Size Sheets Dimensions

Crib size sheets are designed for cribs, typically used by toddlers and infants. These sheets are usually thin to suit the size of crib mattresses. Unlike other bed sizes, crib sheets do not require bed skirts or flat sheets since infants do not sleep with flat sheets, and bed skirts are not compatible with cribs.

Twin Size Sheets Dimensions

Twin-size sheets and mattresses are commonly used for children, teens, and college dorm rooms. They can also be a good option for adult sleepers with limited space. Some brands may refer to twin bed sheets as “singles,” which is the traditional name for twin beds.

Twin XL Size Sheets Dimensions

Twin XL mattresses are famous in college dorms for their adaptability and fit with bunk beds. They’re also suitable for taller students. Despite being labeled as a twin, the twin XL mattress is longer than a standard twin-size fitted sheet. However, you can still use a twin comforter and flat sheet if needed.

Full/Double Size Sheets Dimensions

A full mattress, also referred to as a double bed, is a step up from twin-size beds. They are 16 inches wider than twin beds but have the same length. Full-size beds are suitable for solo sleepers who need more personal space but are not large enough to sleep two people comfortably.

Queen Size Sheets Dimensions

Queen-size sheets, which are both long and wide, are designed to fit queen beds. Queen mattresses comfortably accommodate two sleepers and can also accommodate individuals over 6 feet tall. Queen beds are a popular choice for solo adult sleepers.

King Size Sheets Dimensions

King-size mattresses are the largest bed size and can accommodate single sleepers, two adult sleepers, or parents with one child. Due to their size, king-size sheets and other accessories like comforters, duvet covers, and bed frames are more expensive.

California King Size Sheets Dimensions

California king beds are similar to king beds in size but have a different shape. California king beds are 4 inches longer than king beds, requiring different bed sheets. This bed size suits extra-tall adults or anyone with a narrow bedroom.

Pillowcase Sizes and Dimensions

Pillowcases come in different sizes to match specific bed sizes and ensure there are no gaps between your pillow and the mattress. Pillowcases are approximately the same length as their corresponding pillow, with a slight variation in width. Here are the approximate pillowcase sizes you can expect:

  • Standard: 20 inches by 32 inches
  • Queen: 20 inches by 30 inches
  • King: 20 inches by 36 inches
  • Body: 20 inches by 54 inches

How to Measure Your Mattress

When selecting bed sheets, it’s essential to consider your mattress’s height, width, and thickness to ensure a proper fit. 

Mattresses usually share similar height and width dimensions, but little variations can occur depending on the brand or model. The mattress thickness may also differ based on its firmness and the materials used. To accurately measure your mattress:

  • Remove all blankets, sheets, and pillows for precise measurements.
  • Use a measuring tape to measure the length from the foot to the head of the bed. Round up measurements if needed.
  • Measure the width by taking the tape across the mattress from left to right, focusing on the center for accurate sizing.
  • Vertically measure the mattress to determine its thickness, including any toppers. Exclude the box spring or foundation, as the bed sheets won’t cover it.

These steps ensure accurate mattress measurements for selecting the right-sized sheets, frames, and foundations.

Fitted Sheet Pocket Depth

When selecting a fitted sheet, it’s essential to consider your mattress’s thickness. Standard fitted sheets typically fit mattresses that are 7 to 12 inches thick. However, if your mattress is thicker than this, a deeper pocket depth is necessary for your fitted sheet to stay in place securely. Here are the corresponding pocket depths for different mattress thicknesses:

  • 7 to 12-inch mattress: Standard pocket
  • 13 to 17-inch mattress: Deep pocket
  • 18 to 25-inch mattress: Extra-deep pocket

If you have an adjustable bed base, it’s advisable to choose a fitted sheet with a deeper pocket depth to ensure it stays in place even when the mattress is in different positions. Amerisleep sheets, for example, can fit mattresses up to 18 inches thick, providing a secure and comfortable fit.


Where can I find bed sheets for non-standard mattress sizes?

Retailers who sell non-standard mattress sizes often offer matching bed sheets, bed frames, and comforters. If not, you can find non-standard bed sheets at boutiques or have them custom-made by a tailor to ensure a perfect fit.

Can I use full sheets for a full XL mattress?

No, it is not recommended to use different-sized bed sheets for different mattresses. Fitted bed sheets, in particular, need to be the exact size of the mattress to avoid ripping or ruining the elastic. While a full-size flat sheet may not rip or stretch on a full XL bed, it will be too short for a proper fit.

Why does my fitted sheet keep coming off?

If your fitted sheet keeps coming off, it may be too small for your mattress’s thickness. It is advisable to switch to a deep-pocketed fitted sheet to prevent this issue. Alternatively, you can use sheet suspenders or straps, which are elastic clips attached to the corners of your bed, to keep the sheets in place.

What are the best bed sheet fabrics?

The choice of fabric for your bed sheets depends on personal preference and factors such as durability, breathability, and softness. Here are some popular bed sheet fabrics:

  • Cotton: Cotton is a widely used fabric known for its affordability, breathability, and durability. The softness of cotton sheets varies based on the thread count, with Egyptian and Pima cotton being considered the best.
  • Tencel™: Tencel™ is a natural fabric derived from eucalyptus tree cellulose. It’s notably soft, breathable, and moisture-wicking, providing dryness and comfort throughout the night.
  • Bamboo: Bamboo sheets, also known as bamboo rayon, are soft and silky. The long bamboo fibers prevent pilling and enhance durability.
  • Polyester: Polyester is an inexpensive fabric known for its durability against stains, wear, and wrinkles. However, it is less breathable, moisture-resistant, and soft compared to other materials.

How often should I replace my bed sheets?

It is recommended to replace your bed sheets every 2 to 3 years. However, if you notice thinning and tearing fabric, discoloration or yellowing, fabric pilling, or fading, it may be time to replace them. Regularly washing your bed sheets every one to two weeks can help extend their lifespan.


Choosing the right bed sheet size is vital for a comfortable and proper fit. By understanding the various bed sheet sizes and dimensions, measuring your mattress accurately, and considering factors like pocket depth, you can ensure that your sheets stay in place and provide optimal comfort. Remember to explore additional mattress and bedding size guides to make informed decisions when purchasing other sleep accessories. Enjoy a restful and cozy night’s sleep with perfectly fitting bed sheets!

Christine Lapp is a full-time graduate student and part-time freelancer for Sleep Junkie. Since she was a little girl on the soccer field, Christine has had a love for sports, and she believes everybody should get up and get moving once a day. Now, she incorporates her love for exercise into her studies, pursuing a degree in exercise physiology. Christine understands that what you do during your waking hours has a direct impact on your night’s sleep. In our better sleep guides, she offers advice for developing healthy daytime habits to nurture a more peaceful slumber.

Leave a Reply

Your email address will not be published. Required fields are marked *