Mattress Sizes Chart and Bed Dimensions Guide

Mattress Sizes Chart and Bed Dimensions Guide

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Last Updated March 17, 2023

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.

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

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.


(Width x Length)


(Width x Length)


(Width x Length)

Crib27.25 X 51 inches69.22 X 129.54 cm2.27 X 4.25 feet
Twin38 X 75 inches96.5 X 188.0 cm3.16 X 6.25 feet
Twin XL38 X 80 inches96.5 X 203.5 cm3.16 X 6.66 feet
Full54 X 75 inches134.5 X 190.5 cm4.5 X 6.25 feet
Full XL54 X 80 inches137.16 X 203.2 cm4.5 X 6.66 feet
Queen60 X 80 inches152 X 203.5 cm5 X 6.66 feet
California Queen60 X 84 inches152.4 X 213.36 cm5 X 7 feet
Olympic Queen66 X 80 inches167.64 X 203.2 cm5.5 X 6.66 feet
King76 X 80 inches193 X 203.5 cm6.33 X 6.66 feet
California King72 X 84 inches183 X 213.5 cm6 X 7 feet
Texas King80 X 98 inches203.2 X 248.92 cm6 X 8.16 feet

The first step to your research should be getting to know the types of mattresses that are commonly found in American bedding stores. 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. We have listed the most popular mattresses here; by the time you complete this list you will have a better idea of your style preferences.

Size in inches: 72 x 84 inches

Size in cm: 183 X 213.5 cm

Room Size: 12 feet by 12 feet

A California King mattress is one of the biggest mattress size options available. Beyond this size, you have to custom order mattresses. But what exactly are California King mattresses, and how do they differ from a standard King 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. However, anyone who has kids and pets will also realize that some additional bed space in any direction is a welcome gift.

Size in inches: 76 x 80 inches

Size in cm: 193 X 203.5 cm

Room Size: 12 feet by 12 feet

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 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.

Moving the mattress can be a bit of a tough job but it’s all worth it when you see the mattress tie your master bedroom together. For context, a standard king size mattress is about the same size as two twin XL mattresses joined together.

Size in inches: 60 x 80 inches

Size in cm: 152 X 203.5 cm

Room Size: 10 feet by 10 feet

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.

The Queen is the most popular mattress in America because it is the ideal standard size mattress where a couple can comfortably sleep together without running into space issues. Both the partners will have ample legroom to reposition once in a while in sleep without waking the other, or worse, pushing them off the bed!

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.

Size in inches: 54 x 75 inches

Size in cm: 134.5 X 190.5 cm

Room Size: 9 feet 6 inches by 10 feet 6 inches

The full size mattress is also referred to as the double mattress interchangeably. The mattress is called full size or double because it used to be the standard sleeping mattress for couples way back in the 1940s.

After world war, in the 1950s, king and queen beds and mattresses started to populate the bedding stores and slowly the variants of king and queen mattresses became household names. The full size mattress shrunk in popularity because they offered only 27 inches of space per sleeper which is quite a space crunch. While the king and queen offered ample space for adult couples.

Thus, even though the full size was no longer popular with couples, it stuck around because singles and college students seemed to prefer it. Also, you can get the beddings for the double size in every bedding store or online vendor.

The double mattress fits easily in a 9 feet 6 inches by 10 feet 6 inches room, however you have to account for furniture, other utilities and moveable space within the room. Thus a few inches more on each side should be ideal for a room where a double mattress is to be installed.

Size in inches: 38 x 75 inches

Size in cm: 96.5 X 188.0 cm

Room Size: 7 feet by 10 feet

The twin size mattress is another name given to a single mattress i.e a mattress which can accommodate an adult sleeper, though there isn’t much room to move about in sleep. It is the smallest of all the standard size mattresses in America.

The twin is ideally preferred by parents of children while choosing a first mattress for their individual beds or bunk beds. Children and regular sized teens can keep on using a twin size mattress well into their adulthood. It is also suitable for adults under 6 feet height with a space issue.

Size in inches: 38 x 80 inches

Size in cm: 96.5 X 203.5 cm

Room Size: 9 feet 6 inches by 10 feet 6 inches

Twin XL mattresses are 5 inches longer than the twin size mattresses and this difference in length contributes to the XL’s specific popularity in college dorms. Basically teens who get hit by growth spurts outgrow their previous mattresses, so the next most popular choice is to go for the twin XL mattress. It can accommodate kids as tall as 6 ft 5 inches, so huge legroom is assured.

Also, colleges tend to furnish all their dorm beds with twin XL mattresses to accommodate students of average to tall heights.

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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.

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

A crib size mattress fits inside a crib and its dimensions are regulated by the government in adherence to safety hazards. A crib size mattress is typically 27.25 X 51 inches. 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.

Since this mattress is made specially for infants, the mattress has to be within 6 inches thick and firm, so as to support the developing bones in infants. A child is safe inside the crib within the height of 3ft. Once the child outgrows the height, it’s time to shift to a small single mattress.

There are also some special crib mattresses on the market that are made to fit into corner cribs. When shopping for a crib mattress, be sure to measure your Crib to ensure you are choosing the right size.

The full XL mattress is a larger variant of the double mattress. While this mattress is still not ideal for two full grown adults to sleep together, a taller than average American will surely find this mattress much more compatible with height.

The full XL however is not a standard mattress and it is not readily available in local stores. This also means that beddings for the full XL are hard to find. However, if you still want this mattress you have to put in a custom order with an online vendor or a local store that sells the full XL. Also, the room has to be bigger than 10 ft x 12 ft to accommodate movable space for tall individuals once the full XL has been installed.

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!

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.

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 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.

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.

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-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. You know what it means, your precious sleep just got a little more comfortable. This extra width can make a big difference when you’re trying to share a bed with another person.

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.

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 mattress, which is 72 inches wide by 84 inches long.

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.

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:

Size of your room is a crucial factor you need to consider. You may think that you need a California King bed, yet your room is only big enough to accommodate a Queen bed. If you don’t know your room’s measurements you will never realize what mattress you practically can buy, and you may end up buying a grossly over-budget mattress that won’t fit in your room.

In order to avoid such mishaps, please consult our mattress size and room size table listed at the beginning of this blog. The room sizes listed in this article are liberally measured. Feel free to customize the size as per your preferences. If you need your rooms to be even larger or smaller, go for it.

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.

A mattress fits ideally into a room such that inclusion of the mattress does not hinder the moveable space, does not make the furniture and other assortments look like they are cramping the spatial freedom of the room. In a nutshell, a new mattress should not make you feel like the room is visually stressful, you don’t want that in a bedroom.

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

In most cases, the need to buy a new mattress comes up when a single one just won’t do. Either you have started a new relationship, or your partner is moving in or maybe you got married recently, all these factors are reason enough to get an upgrade.

You may have kids on the way or the kids that you have insisted on sleeping in your bed which begs the need for an upgraded and more spacious mattress.

However, you can be farsighted and buy a mattress that’s suitable for two people at the very beginning. By doing so you are avoiding the need to upgrade soon and thereby saving a bunch of money. Also, you will be getting all the bed space to yourself to enjoy sweet, sweet sleep!

  Comprehensive Guide to Bed Sizes and Bed Dimensions

For your convenience here’s a list of:

Single Sleeper Mattresses strictly i.e only one person can sleep comfortably:

Double Sleeper Mattresses i.e two people can sleep comfortably:

Double Sleeper mattresses which can accommodate adults, children and pets comfortably:

The Queen and Olympic Queen can also accommodate pets and children but in doing so, the available space will get crammed.

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.

The heavier mattresses like the Queen, King and the California King are difficult to transport. And mattresses don’t do well if they are damaged during transit, in fact a damage can greatly reduce the effectiveness of a mattress.

For eg: if a mattress meant to soothe your back pain gets scrunched up in a tight corner then the even alignment of the mattress is compromised, giving it some form of dents and alignments which will eventually adversely affect your back.

Therefore, it’s as important a factor to consider whether you live on the ground floor or a storey above ground or in a high rise. Whatever be your situation, make sure that you make arrangements to get the mattress delivered and installed in tip-top condition.

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.

Do you have any medical ailments that can benefit from a change of mattress? A spine problem perhaps? Or maybe you just need a mattress good enough to make you want to shed off the stress and fall asleep. Time and again doctors and chiropractors have prescribed the use of a mattress that suits your body weight and the ailment in question.

So you need to know precisely whether your body needs the feather soft mattress that makes a dent as soon as your body touches it. Or do you need a strong and firm mattress that will relieve an aching back pain.

Also mattress allergies are more common than you think. Many people realize that they have latex allergies soon after they buy a costly mattress. Do yourself a favor, get tested for allergies before buying and definitely know the full constituents of the mattress from the salesperson.

Last and the most important factor is the budget, no surprises here. 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.

A simple mattress as a twin can cost you anything between $200 to $800, of course it depends on what the mattress is made of and the brand value.

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.

While pondering on budget, we will ask you to:

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.

Even knowing some of the information is enough to confuse a person, given that there are so many different types of mattresses and beddings available in the market. The permutation and combination of choices can surely be mind boggling. To make the research process simpler for you, we have chosen to answer a few questions that we get asked all the time.

Mattress size is usually 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!

The different sizes of beds and mattresses that are common all across the country are: twin, twin XL, full size, queen, King, and California King.

The most popular mattress size in the United States is a queen, which measures 60 inches by 80 inches. It is versatile and comfortable; whether you are a bachelor or a family person a queen mattress in your master bedroom will make sleep look even more inviting.

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.

However, since the queen mattress is 60” x 80”, the size of the room must be taken into account. Ideally, for a room to house the queen mattress, it should be at least 10ft x 10ft in size; however, you cannot go wrong with a bigger sized room.

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.

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.

However, they can be quite rare to find, since not a lot of people demand an oversized mattress. Since these mattresses are made only on a custom order basis, you can seldom spot them in local bedding outlets. So, if you want an Alaskan mattress, place a custom order with a local retailer or find a vendor online.

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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.

Two side-by-side twin xl 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.

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.

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.

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.

The size of a queen bed is 60 x 80 inches while the size of a double size bed is 54 x 75 inches. As you can infer from the size differences, the queen size mattress is obviously bigger than the double mattress. The queen is 6 inches wider and 5 inches longer than the double mattress.

This bit of difference in mattress sizes is enough to make or break a good night’s sleep. A queen size is just about enough for 2 adults to sleep comfortably together while a double sized mattress has quite a space crunch if 2 adults are trying to sleep.

The size of a double mattress is 54 x 75 inches while that of a king size mattress is 76 x 80 inches. Visually, you cannot miss the sheerness of a king size mattress. A king is approximately 50% wider than the double size mattress while it is 5 inches longer.

Moreover, a king size mattress is enough for a family of two adults and two children, provided that the children sleep with the parents occasionally. Whereas the double size mattress is not exactly ideal for two adults to sleep in, but they get the work done.

Best looks different for different people. A run of the mill full size mattress can be a starting off point for mattress sharing between two regular adults if you are either in a space or budget crunch. Queen size mattress is the most comfortable starting off point if two adults are to sleep comfortably together. The Olympic Queen is even wider than the queen size, so it is a good purchase as well. Queen mattress generally does the trick for two adult sleepers.

However, if you and your partner both like to sleep with a lot of space around yourselves, or maybe you have two kids or pets who like to join you every night then the king and California king mattresses are perfect for you.

The King and California King mattresses which are sized at 76x 80 inches and 72 x 84 inches respectively are the best mattresses for small families to sleep comfortably together. Two kids, parents with a regular build and a pet can sleep together regularly on big mattresses as this and not compromise on sleep.

For bigger families, the Texas King, Alaskan King or the Family XL oversized mattresses are additional options to choose from.

Traditionally, the twin mattress was the best mattress for single middle class Americans. As you might not know the twin is just another name for a single mattress, so if you are in a space and budget crunch the twin is a practical choice for single adults. People who are taller than 6 feet will benefit from the twin XL mattress since the twin cannot accommodate tall people.

However, if you are not bothered by budget and space and your top concern is to get a luxury sleep, then invest in a queen size mattress. It is big enough for two people to sleep together while not being as costly as the King variants, so, you can hog all the mattress space without having to share it with anyone!

Related blog posts:

1. Best Mattress For Side Sleepers

2. How to Measure a Mattress the Right Way?

3. Best Mattress For Kids 2023

4. Best Mattress Topper For Back Sleepers 2023

5. The Importance Of Bed Frames: Why Support and Stability Matter

So there you have it, our comprehensive guide to mattress sizes and dimensions. Buying a mattress should not be a casual affair because sleep surely isn’t a casual thing. Therefore, it’s as important to research well before buying a mattress as you are informed about the food you eat.

Knowing the size of your room and your bed are good places to start when you are thinking about getting a new mattress. There on, think about if you have any medical ailments or allergies, who else will be sleeping with you, material with which the mattress is made and your budget. Now that you have all these data points you can make an informed purchase and not regret the decision later on.

These mattresses sizes are the same for other bedding accessories you may put on top of the mattress like the latex mattress toppers, egg crate mattress toppers etc.

We hope this article 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.

Disclaimer: What is said in this article has been referenced from multiple sources and is intended only for educational and informational purposes. Please note that no content in this article is a substitute for professional advice from a qualified doctor or healthcare provider. Always consult an experienced doctor with any concerns you may have regarding a health condition or treatment, and never disregard any medical suggestions or delay in seeking treatment because of something you read here.

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