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Mattress Sizes Chart and Bed Dimensions Guide

By: Sheryl Cannes
Updated on: April 05, 2024

Buying a new mattress is a vital decision. After all, you’ll spend at least eight hours each night sleeping on it for the next few years. But with so many different kinds of mattresses available, where do you start?

The first step in selecting the best mattress is determining your bed size and understanding the type best suits your needs. To help make this process easier for you, we’ve created the mattress sizes chart and bed dimensions guide to help you understand mattress sizes and dimensions. Read this guide to learn more about choosing a mattress size chart and the right size mattress for your bedroom!

Standard Mattress Sizes

Mattress SizeDimensions (inches)Dimensions (cm)Dimensions (feet)
Crib27.25 x 5169.22 x 129.542.27 x 4.25
Twin38 x 7596.5 x 188.03.16 x 6.25
Twin XL38 x 8096.5 x 203.53.16 x 6.66
Full54 x 75134.5 x 190.54.5 x 6.25
Full XL54 x 80137.16 x 203.24.5 x 6.66
Queen60 x 80152 x 203.55 x 6.66
California Queen60 x 84152.4 x 213.365 x 7
King76 x 80193 x 203.56.33 x 6.66
California King72 x 84182.88 x 213.366 x 7
Texas King80 x 98203.2 x 248.926.66 x 8.16

Crib Mattress Size

  • Dimension in inches: 27.25 x 51 inches
  • Dimension in cm: 69.22 x 129.54 cm
  • Dimension in feet: 2.27 x 4.25 feet

A full crib-size mattress is designed for infants and young children. It provides a safe and cozy sleeping space for your little one. The standard crib-size mattress also ensures a snug fit within the crib frame, preventing any gaps that could pose a safety risk. It’s important to note that crib mattresses are unsuitable for adult use.

Twin Mattress Size

  • Dimension in inches: 38 x 75 inches
  • Dimension in cm: 96.5 x 188.0 cm
  • Dimension in feet: 3.16 x 6.25 feet

The twin mattress, also known as two full twin mattresses pushed together xl mattresses pushed together beds a single mattress, is a popular choice for children’s bedrooms, guest rooms, or smaller spaces. It offers ample space for a single sleeper, making it an ideal option for kids transitioning from a crib or young adults living in dorm rooms.

Twin XL Mattress Size

  • Dimension in inches: 38 x 80 inches
  • Dimension in cm: 96.5 x 203.5 cm
  • Dimension in feet: 3.16 x 6.66 feet

The twin XL mattress shares the same width as a standard twin but provides extra length, making it a suitable choice for taller individuals. It offers additional legroom without taking up much space in the room, making it popular in college dormitories or compact bedrooms.

Full Mattress Size

  • Dimension in inches: 54 x 75 inches
  • Dimension in cm: 134.5 x 190.5 cm
  • Dimension in feet: 4.5 x 6.25 feet

A full xl mattress size full-size mattress, also known as a king-size bed or a double mattress, is wider than a twin-size mattress but provides the same length. It offers more sleeping space for single individuals who prefer extra rooms or couples who like to snuggle up. Full-size mattresses are a versatile option for teenagers or guest rooms.

Full XL Mattress Size

  • Dimension in inches: 54 x 80 inches
  • Dimension in cm: 137.16 x 203.2 cm
  • Dimension in feet: 4.5 x 6.66 feet

The full XL mattress is an extended version of the full-size mattress, offering 80 inches long extra length. This is particularly beneficial for taller individuals who require additional legroom and a sleeping position. The full XL provides a comfortable sleep surface without occupying excessive space in the room.

Queen Mattress Size

  • Dimension in inches: 60 x 80 inches
  • Dimension in cm: 152 x 203.5 cm
  • Dimension in feet: 5 x 6.66 feet

The queen-size mattress is a popular choice for couples or individuals who prefer more sleeping space. It offers ample room for two people to sleep comfortably without compromising individual space. The queen-size mattress fits well in most bedrooms while providing a cozy sleeping experience.

California Queen Mattress Size

  • Dimension in inches: 60 x 84 inches
  • Dimension in cm: 152.4 x 213.36 cm
  • Dimension in feet: 5 x 7 feet

The California Queen mattress shares the same width as a standard queen firm mattress but provides extra length. This makes it a suitable choice for taller individuals who require more legroom. The California Queen full-size mattress is primarily available on the United States West Coast.

King Mattress Size

  • Dimension in inches: 76 x 80 inches
  • Dimension in cm: 193 x 203.5 cm
  • Dimension in feet: 6.33 x 6.66 feet

A king-size mattress is a spacious option, offering ample room for couples to sleep comfortably. It provides 80 inches long extra width and length compared to a queen-size mattress, ensuring plenty of space for each individual. King-size mattresses are commonly found in master bedrooms or for those who prefer a generous sleep surface in a dorm room.

California King Mattress Size

  • Dimension in inches: 72 x 84 inches
  • Dimension in cm: 182.88 x 213.36 cm
  • Dimension in feet: 6 x 7 feet

The California King size mattress, or the Western King mattress, is the longest, standard king-size size available. It offers extra length compared to a regular king-size mattress, making it suitable for taller individuals. The California standard King size mattress is more common on the United States West Coast.

Texas King Size

  • Dimension in inches: 80 x 98 inches
  • Dimension in cm: 203.2 x 248.92 cm
  • Dimension in feet: 6.66 x 8.16 feet

The Texas King is a standard king-size bed, an oversized mattress designed for those who desire a significant amount of sleeping space. It provides additional width and length compared to other mattress sizes, ensuring a luxurious and roomy sleep surface. The Texas King bed is less common and may require custom ordering.

Remember that mattress sizes can vary slightly between manufacturers, so it’s always recommended to double-check the dimensions before making a purchase. Additionally, it’s essential to consider the size of your room and any specific needs or preferences to ensure the perfect fit for your sleep space.

Mattress Size Comparisons

Trying to decide how much space is between two mattress sizes? Take a closer look at the variations in mattress size dimensions to make an informed choice based on your preferences and room size. Remember to consider your needs when determining the most suitable mattress size.

Queen vs. King Size

If you are torn between two mattress sizes, it’s important to consider the differences to determine which suits you best. While a queen bed comfortably accommodates many couples, some may feel it lacks sufficient space and prefer a king-size mattress. The king bed shares the same length as a queen bed size and mattress dimensions but is typically 16 inches wider, providing more room. This extra width is particularly beneficial if you or your partner (or even your kids or pet) tend to move around a lot during sleep, allowing for a more restful night’s rest. However, if you have limited bedroom space, a queen size bed might be a better choice as it saves floor space. Remember to measure your room and leave ample space for walkways when deciding.

Full vs. Queen Size

A full mattress, also called a double bed, is 5+ inches wide and 80% shorter and 7+ inches wide and 80% narrower than a full compared queen mattress. While some couples may find a full bed sufficient for their needs, it can feel crowded. Full mattresses are more suitable for single sleepers who desire more space than a twin-size bed offers. Additionally, many people opt for a full mattress in their guest room due to its smaller size and affordability. If you share your bed with your partner, choosing a queen size or larger is generally recommended to ensure optimal sleep quality and provide ample room for movement.

Full vs. Full XL

A full XL twin-size mattress is 5 inches longer and 1 inch wider than a full mattress. It offers a great option for taller individuals who sleep alone. Being slightly narrower than a full queen twin XL but with the same length, a full XL mattress allows you to save some floor space while still providing enough width for an adult. If you prefer the dimensions of a full-size mattress but want to ensure your feet don’t hang off the end, the full XL king-size bed is the ideal choice.

Twin XL vs. Full

Twin XL or twin-size mattresses are commonly found in college dorm rooms as they are long enough for adults to sleep on and can be used on a bunk bed or beds to maximize space. They are 5 inches longer than a full mattress and 15 inches narrower. Full beds are well-suited for smaller bedrooms, offering a more luxurious feel than twin or twin XL twin-size mattresses while occupying less space than larger sizes.

Twin vs. Full Mattress

Both twin and full mattresses share the same length of 75″ wide and 80 inches across, but a full mattress is 15″ wide and 80 inches wider than two twin mattresses. This additional width provides more space for single adults, whereas twin mattresses are typically preferred for children.

Twin vs. Twin XL

The twin XL mattresses share the same width as a full twin bed but offer an extra 5 inches in length. This makes it more suitable for taller individuals, including kids or adults. That’s why dorm rooms often opt for twin beds with XL mattresses instead two twin beds of twins.

FAQs about Mattress Sizes and Bed Dimensions

What is the most common mattress size?

The most common size of mattress is the standard queen-size mattress. It offers the best balance of space and versatility, making it suitable for most adults and couples.

Can I use twin XL sheets on a twin-sized mattress?

Yes, you can use twin XL sheets on a regular twin-sized mattress. However, remember that the fitted sheet may be slightly loose due to the difference in the length room size of the compact mattress.

Are California King mattresses suitable for everyone?

California King mattresses are ideal for taller individuals or those who prefer extra legroom in double beds. However, they may not be the best choice for smaller bedrooms or bunk beds due to their larger dimensions.

Do all mattress brands offer the same sizes?

While most mattress brands adhere to standard sizes, there can be slight variations in dimensions. It’s recommended to check the specific measurements provided for full-size beds by the manufacturer before purchasing.

Can I use a full-size mattress on a queen-sized bed frame?

No, a full-size mattress will not fit properly on a queen-sized bed frame. The dimensions of queen and full-size mattresses are different, and attempting to fit a smaller mattress on a larger frame will result in an ill-fitting and potentially unstable sleep surface.

What are the benefits of a larger mattress size?

Larger mattress sizes provide more space for comfortable sleep and movement. They are particularly beneficial for couples who prefer to have ample room or for individuals who enjoy spreading out during sleep.


Choosing the right mattress size and dimensions ensures a comfortable and restful sleep. By understanding the various mattress sizes available, you can make an informed decision based on your specific needs and preferences.

Remember to consider factors such as bedroom size, the number of sleepers, and individual comfort preferences when selecting a mattress size. Additionally, always double-check the dimensions provided by the manufacturer to ensure choosing a mattress size dimensions is the proper fit for your bed frame and room.

Now that you completely understand mattress sizes and dimensions, you can confidently choose the perfect mattress that suits your needs, allowing you to enjoy a good night’s sleep for years.


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