Mattress Sizes and Dimensions Guide 2022

Mattress Sizes and Dimensions Guide

Author : Commerzilla LLC on May 14, 2022

Right now, as you lay in bed, are you comfortable? Or are you a bit cramped? A common problem for those with smaller bedrooms is not having enough space to fit a large bed. And even if your bedroom is on the spacious side, chances are you might still want a larger bed for added comfort. That's why it's important to know the different mattress sizes and dimensions before you go shopping.

Mattress Sizes and Dimension Guide

This guide will give you an overview of the different mattress sizes and dimensions available in the market so that you can find the perfect fit for your needs.

Mattress sizes and dimensions chart

It can be tricky to know whether you should get a full, queen, or king-size mattress. And then there are all the different mattress dimensions to consider! To help you make sense of it all, we've put together a mattress sizes and dimensions chart.

Mattress size and dimension chart


Standard mattress sizes

Standard mattress sizes make it easy to find sheets and other bedding that will fit your bed, and they also make it easier to move your mattress from one place to another. The most common standard mattress sizes are as follows:

1. California King mattress

A California King mattress is one of the biggest mattress size options available, and it's perfect for tall people or couples who want plenty of room to sprawl out. But what exactly is a California King mattress, and how does it differ from a standard King mattress?

California king size mattress

A California King mattress is 72 inches wide and 84 inches long, making it 4 inches narrower but 4 inches longer than a standard King. This extra length can be a big advantage for people who are 6 feet tall or taller, as it gives them more room to stretch out.

Couples will also appreciate the extra space, as it makes it easier to move around without disturbing your partner's sleep.

2. King mattress

A king mattress is a great choice for couples who want plenty of space to sprawl out or for anyone who simply wants more room to themselves. Its dimensions are 76 inches wide by 80 inches long, making it significantly wider than a queen mattress.

King size mattress

King mattresses are also ideal for taller individuals who need extra length. And if you often have overnight guests, a king mattress ensures that everyone will have a comfortable place to sleep. In addition, king mattresses typically have a thicker layer of padding, making them more comfortable for side sleepers.

3. Queen mattress

A queen mattress is a bed that is approximately 60 inches wide and 80 inches long. This makes it slightly smaller than a king mattress, which is typically 76 inches wide and 80 inches long.

Queen mattress size

While the extra width of a king mattress can be beneficial for couples who want more space to sleep, the queen mattress is often more affordable and easier to move.

Additionally, queen mattresses are a good option for people who want more space than a full mattress but don't need the added width of a king.

Queen mattresses are also a popular choice for small bedrooms or guest rooms because they offer a balance of space and comfort without overwhelming the room.

4. Full mattress

A full mattress is a type of bed that is typically 54 inches wide and 75 inches long. It is sometimes also referred to as a "double mattress."

Full size mattress

A full mattress is slightly smaller than a queen-size mattress, which is typically 60 inches wide and 80 inches long. A full mattress is a good option for people who are taller than average, as it provides more length than a twin mattress but is not as wide as a queen or king.

Full mattresses are also a good choice for people who sleep alone, as they do not take up as much space as a larger bed.

5. Twin mattress

A twin mattress is a type of mattress that is designed for one person. It is 38 inches wide by 75 inches long. Twin mattresses are usually the same width as a full-size mattress, but it is shorter in length.

Twin mattress size

Twin mattresses are typically used in bunk beds, daybeds, and trundle beds. They are also a popular choice for children's bedrooms, as they are compact and easy to move around. Twin mattresses can also be used as a guest bed or in a small space. If you are looking for a mattress for one person, a twin mattress is a great option.

6. Twin XL mattress

A twin xl mattress is a type of mattress that is designed for two people. This type of mattress is typically made from two twin-sized mattresses that are put together to form one large mattress. The dimensions of a twin xl mattress are typically 80 inches by 38 inches, which is slightly larger than a standard twin mattress. This extra length is ideal for taller individuals or for couples who want to have more room to sleep.

Twin xl mattress size

In addition, twin xl mattresses are typically more expensive than standard twin mattresses due to their larger size. However, they can be a great investment for those who need the extra space.

What are the other mattress sizes available?

In addition to the above, there are also other types of mattress sizes available. This includes:

  • Crib size mattress

A crib size mattress is typically 28" x 52" x 6". This size is also known as a mini or junior bed. Some crib mattresses have one extra inch in length, which is helpful if you plan on using the mattress for a toddler bed.

The thickness of a crib mattress is generally between 4" and 6". This thickness is important because it needs to be small enough to fit safely in a crib but thick enough to provide comfort and support for your baby.

There are also some special crib mattresses on the market that are made to fit into corner cribs. These mattresses are typically triangular in shape and range in size from 27" x 45" x 6" to 30" x 48" x 6". When shopping for a crib mattress, be sure to measure your Crib to ensure you are choosing the right size.

Crib size mattress

  • Super-king mattress

A super king mattress is one of the largest on the market, measuring in at a whopping 72 inches wide by 84 inches long. That's nearly six feet wide and seven feet long!

Super king mattress

It's the perfect size for a spacious master bedroom or for anyone who just likes to have a lot of room to sprawl out. If you're considering a super king mattress, you'll need to make sure you have enough space in your room for it.

  • Texas mattress

A Texas mattress is a large mattress that is typically measured at 80 inches by 98 inches. It is named after the State of Texas, which is known for its large size.

Texas mattress size

Texas mattresses are also sometimes called "family size" mattresses because they can comfortably sleep three or four people. While most mattresses come in standard sizes, Texas mattresses are not as common and may be harder to find. However, they can be worth the effort if you need the extra space.

  • Alaskan king mattress

An Alaskan king mattress is one of the largest mattresses available on the market, measuring 108 inches wide by 108 inches long. That means that it's nearly nine feet wide and nine feet long! It's also significantly larger than a standard king mattress, which measures 76 inches wide by 80 inches long.

Alaskan king mattress

As you can imagine, an Alaskan king bed is large enough to comfortably sleep four people. So if you're looking for a mattress that can accommodate a family or guests, an Alaskan king mattress is a great option. Just be sure that you have enough space in your bedroom to accommodate this massive piece of furniture!

  • Olympic queen mattress

Olympic queen-size mattresses are a great option for couples who want more space than a standard queen mattress offers. With dimensions of 66" x 80", an Olympic queen is 6" wider than a standard queen. This extra width can make a big difference when you're trying to share a bed with another person.

Olympic queen mattress

Plus, if you have pets who like to sleep at the foot of the bed, an Olympic queen will give them plenty of room to stretch out. Whether you're looking for more space or simply want a mattress with a little extra room to spare, an Olympic queen-size mattress is a great choice.

  • RV mattress

Most RVs come equipped with a queen-size bed, which is 60 inches wide by 80 inches long. However, there are also models that feature a king-size bed, which is 76 inches wide by 80 inches long. If you're looking for something even larger, you can find RVs with a California king bed, which is 72 inches wide by 84 inches long.

RV mattress size and dimension

When it comes to mattress thickness, most RV mattresses range from four to eight inches. Some brands also offer a low-profile option, which is ideal for RVs with limited headroom. No matter what size or style you choose, an RV mattress should provide a comfortable sleeping surface for you and your passengers.

How to choose the right mattress size based on your needs?

When it comes to choosing a mattress, size is an important consideration. After all, you want to make sure you have enough room to comfortably sleep, and you don't want your mattress to be so large that it takes up too much space in your bedroom. But how do you know what size mattress is right for you?

Here are a few things to keep in mind when choosing a mattress size:

Bedroom size

If you have a small bedroom, for instance, it might be best to choose a twin or full-size mattress so that you don't feel cramped. On the other hand, if you have a large bedroom, you might want to consider upgrading to a queen or king-size mattress so that you have plenty of room to stretch out. In the end, it's all about finding the right balance between comfort and space. And that's why bedroom size matters when choosing the right mattress size.

Sleeping partner

It turns out that who you share your bed with can make a big difference.

For example, single sleepers often prefer a twin or full-size mattress, as they offer plenty of space without being too large. Couples, on the other hand, may find that a queen or king-size mattress is more comfortable, as it provides each person with enough room to spread out. And families with small children may appreciate the extra space of a California king.

Of course, there are no hard and fast rules when it comes to choosing the right mattress size. Ultimately, it's up to you to decide what feels most comfortable. But keep in mind that who you share your bed with can be an important factor in making that decision.

Your height

If you are too short for a mattress, you may find yourself hanging off the edge. This can be uncomfortable and even dangerous, as you could potentially fall out of bed during the night. On the other hand, if you are too tall for a mattress, your feet may hang over the edge, or you may have difficulty finding sheets that fit properly. So, your height is also another important factor to consider when choosing the right mattress size.

The best mattress size for taller people is a queen or king-size, while the best mattress size for shorter people is a twin or full size. If you're unsure of what size to choose, it's always best to go to a store and try out different mattresses before making a purchase.


When it comes to choosing the right mattress size for your needs, budget matters. That doesn't mean that you need to spend a fortune on the most expensive mattress out there. But it does mean that you'll want to carefully consider the cost of the mattress you're considering.

Some mattresses are simply more expensive than others, and if you're on a tight budget, you may need to compromise on features or quality in order to stay within your price range.

In addition, the size of the mattress you choose will also have an impact on the price. A larger mattress will generally cost more than a smaller one, so if you're looking to save money, you may need to go with a smaller size.

However, keep in mind that a smaller mattress may not provide the same level of comfort or support as a larger one, so be sure to try out multiple sizes before making your final decision. With careful consideration of budget and needs, you can find the perfect mattress size for your bedroom.

Mattress sizes and dimensions - FAQs

1. How's mattress size measured?

Mattress size is measured in inches, and most mattresses are between six and eight inches thick. The width and length of the mattress will vary depending on the type of mattress you choose.

For example, a twin-size mattress is typically 39 inches wide and 74 inches long, while a queen-size mattress is 60 inches wide and 80 inches long. Keep in mind that these measurements are for the mattress itself - they don't include the size of the box spring or frame. When you're shopping for a new mattress, make sure to measure your bedroom to ensure that you have enough space for the bed you want. And don't forget to leave some extra room for pillows, sheets, and blankets!

2. What's the most popular mattress size?

The most popular mattress size in the United States is a queen, which measures 60 inches by 80 inches. This size is ideal for couples who want plenty of space to sleep comfortably, and it's also a good option for single sleepers who want more room than what a twin or full mattress can offer. Queen mattresses are also widely available and easy to find in a variety of styles, making them a popular choice among shoppers.

3. What's the difference between a full and double bed?

A double bed is just a different name for a full-size bed. The term "double bed" usually refers to the fact that the bed can accommodate two people, but it can also refer to the increased width of the bed. In other words, double beds are simply full-size beds with more space.

It is wider than a twin bed but not as wide as a queen or king-size bed. A full-size bed is 54 inches wide and 75 inches long. The extra width is nice for couples who want to sleep close together or for single adults who want more personal space when sleeping. Some people find a full-size bed to be the perfect balance between space and affordability.

4. What's the largest mattress size?

The answer is an Alaskan king. These massive mattresses are designed for people who need a lot of space to sleep comfortably.
An Alaskan king is nearly twice the size of a standard king-size mattress, and it offers a full seven feet of width. This makes it ideal for people who are taller than average or who simply appreciate having a lot of room to stretch out. Of course, all that extra space comes at a price, and an Alaskan king mattress can be quite expensive.

5. Is a full-size mattress big enough for two people?

A full-size mattress is the standard size for an adult person. It's 54 inches wide and 75 inches long, which leaves each person 27 inches of space to themselves—plenty of room to sleep comfortably. But when you add another person into the mix, suddenly, that space starts to feel a lot smaller. You might find yourself hanging off the edge of the bed or constantly being jostled by your partner during the night.

If you're someone who likes to spread out when you sleep, a full-size mattress might not be big enough for you. But if you don't mind snuggling up close to your partner, then a full-size mattress should be just fine.

6. What size do two side-by-side twin mattresses make?

Two side-by-side twin mattresses make a king-size bed. A king-size bed is about 76 inches wide and 80 inches long, so two twin mattresses are each about 38 inches wide and 80 inches long. That's a lot of extra space for couples who want to spread out or for children who like to have their own space when they sleep. Plus, a king-size bed can accommodate people of different heights, so everyone can be comfortable.

7. What's the standard size of a bunk bed mattress?

Most bunk bed mattresses are twin-sized, which means they're 39 inches wide and 75 inches long. That's the same size as a standard single mattress, but it's important to double-check the dimensions before you buy a bunk bed mattress.

Some bunk beds are designed for smaller mattresses, such as those used for college dorm rooms, trundle beds, or daybeds. These mattresses are usually about 5 inches shorter than a twin mattress, so they're not always a good fit for bunk beds. If you're unsure about the size of mattress you need, it's always best to measure the bed frame before you buy a mattress.

8. Are California king-size mattresses bigger than king-size mattresses?

The answer is yes! California king mattresses are slightly longer and narrower than traditional king mattresses, making them a great option for taller sleepers.

California king mattresses are usually 72 inches wide by 84 inches long, while regular king mattresses are 76 inches wide by 80 inches long.

9. What size bed do most couples sleep on?

Most couples sleep on a queen-size bed. A queen-size bed is big enough to comfortably accommodate two people, but it's not so big that it feels overwhelming in a small bedroom. Queen-size beds are also a good choice for couples who have pets since they can easily share the bed with their furry friend. If you're not sure what size bed to get, a queen is usually a safe bet.

10. Do two twin beds make a queen-size mattress?

Two twin beds do not make a queen-sized bed. Twin beds are typically 38 inches wide, while queen-sized beds are at least 60 inches wide. So, if you put two twin beds together, you're still going to have a smaller bed than a queen. However, two twins can make a larger bed than a full-size mattress.

Related blog posts:

1. Is There a Difference Between a Full Bed and a Double Bed?

2. 5 Signs That Show It's Time for a New Mattress

3. How Do You Extend the Life of Your Mattress?

4. Latex Mattress Guide - All Your Latex Mattress Questions Answered

5. Best Mattress for Side Sleepers

So there you have it, our comprehensive guide to mattress sizes and dimensions. We hope this was helpful in clearing up any confusion about what size bed will fit in your room or which mattress is the best for you. If not, feel free to leave us a comment below, and we'll do our best to answer all of your questions.


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