Full Size Bed Dimensions

Last Updated December 30, 2023

Is a full size bed really that much bigger than a twin? You might be surprised at how much difference there is in mattress dimensions. Read on to learn about Full Size Bed Dimensions and what to expect when upgrading from a twin or twin xl.

Key Takeaways:

  • Full size beds, also known as "double" beds, measure 54 inches in width and 75 inches in length.
  • A full mattress is larger than a twin and smaller than a queen.
  • Full beds are suitable for single sleepers or those who want more space than a twin but don't have the room or budget for a queen or king. They may not be ideal for couples, as they are generally not big enough for two people to sleep comfortably.
  • Full size beds often come at a lower price point and can easily fit into tighter spaces.
  • When choosing a full bed, you must consider factors such as room size, bed frame dimensions, number of sleepers, height, and budget.

full size bed dimensions

What Is a Full Bed?

A full size bed, also known as a "double" bed, is larger than a twin bed and smaller than a queen bed. While they may seem like the perfect choice for couples, it's important to note that these beds generally aren't big enough for two people to sleep comfortably. So, unless you're single or have a very small significant other, you might want to consider upgrading to a queen or king size bed.

latex mattress

That being said, full size mattresses are still great options for guest rooms or children's bedrooms. So if you're in need of more space-saving solutions, a full could be just the right fit.

Full Size Mattress Dimensions

Dimensions in inches - 54 X 75 inches
Dimensions in cm - 134.5 X 190.5 cm
Dimensions in feet - 4.5 X 6.25 feet

A full size mattress measure 54 inches wide by 75 inches long. This means it is 16 inches wider than a twin mattress but has the same length.

Full beds are a great choice for single sleepers or those who want more space than a twin but don't have the room (or budget) for a queen or king. And since these mattresses are on the smaller side, they often come at a lower price point and can easily fit into tighter spaces.

Just keep in mind that double beds may not be the best option for the tallest individuals, as there can be limitations on how much legroom is available.

full size mattress

What to Consider Before Choosing a Full Size Bed?

When it comes to buying a new mattress, size is definitely an important thing to consider. Not only do you want to make sure your bed will fit comfortably in your bedroom with enough room for movement, but you also need to think about whether you'll be sharing the bed with someone else.

Will a full size mattress give you and your partner enough space, or should you be looking at a queen or king size? Is a full mattress affordable? Will it fit your bed frame? - There are a lot of factors like this to consider.

Below we have listed some of the most important things you should keep in mind before investing in a full size mattress.

Room size

    Have you ever walked into a bedroom and felt a bit cramped, even if all the furniture seemed to fit? That may be because much of our perception of space is determined by room dimensions in relation to the furniture within it. This is why it's important to consider room space before purchasing a full mattress - otherwise, you could end up feeling like you're sleeping in a closet instead of a cozy bedroom.

    In general, the standard size of a full mattress is 54 X 75 inches, and the minimum recommended room size of a full size mattress is 10 feet by 10 feet.

    When figuring out room space, make sure to measure not only the length and width of the bed but also any furniture or objects in the vicinity that could potentially affect the layout of your room. Don't forget to leave some extra space for walking and moving around as well.

    Taking these factors into account before purchasing a full mattress can save you from feeling cramped and claustrophobic in your own bedroom. Additionally, it can ensure that you have enough room for other bedroom essentials such as dressers, nightstands, and even simply being able to open your closet door all the way.

    Bed frame

      Another thing to consider is the dimensions of your bed frame. The industry standard bed frame dimension for a full size bed is 56 to 59 inches by 77 to 80 inches.

      If your frame is too small, your mattress may hang over the edges and be at risk for tearing or damage. On the other hand, if the frame is too big, there may be gaps between the mattress and frame where dust and allergens can collect. Therefore, it's always important to find a snug fit.

      Number of sleepers

        While a single sleeper can spread out comfortably on a full mattress, the same is not true for couples.

        a young adult sleeping on a full bed

        Two sleepers sharing a full mattress means less individual space and less room to move around at night, leading to potential discomfort and disrupted sleep. A queen or king size mattress may be a better choice for couples, allowing each person ample room to stretch out and get a good night's rest.


          Even though a full size bed typically offers plenty of room for one person, taller sleepers may find themselves constantly hanging off the edge or uncomfortable due to cramped leg space.

          If you're over 6 feet tall, a queen or even a king size mattress may be a better fit. However, don't settle for less-than-ideal dimensions - it could seriously impact your sleep (and how cranky you are in the morning!).


            Your budget should also be a factor in your decision-making process. Taking the time to consider your budget before making a purchase can save you from potential buyer's remorse or strained finances down the road.

            It's also worth comparing prices at a few different stores and considering any promotions or mattress sales that may be available. You'll be able to find a great full size mattress at a price that fits within your budget and leaves room for other expenses and savings.

            full size mattress dimensions in inches, cm, and feet

            Full size mattress variations and bed dimensions

            When shopping for a full size mattress, it's important to remember that there's more to choose from than just the standard model. Yes, we are talking about the full xl size mattresses here.

            Full xl mattress

            Measuring 54 inches by 80 inches, a full xl mattress is 6 inches longer than the standard full size mattress. This extra length can provide added comfort and room for tall individuals or those who like to spread out while they sleep.

            Of course, finding sheet sets and bed frames for this unusual size can be slightly trickier. But for those in need of some extra room, the extra little bit of space provided by a full XL mattress can truly make all the difference.

            full xl mattress dimension

            Why Is a Full Size Bed Also Known as a Double Bed?

            To answer this, we will have to dig into a little history. Full beds, also known as double beds, were, once upon a time, the only mattress of choice for couples - although this was mainly due to the lack of size options available to the buyers at the time.

            Until the 1940s, the twin and double sizes were the most popular mattress options. Twin mattresses (also known as singles) were for one person; on the other hand, double mattresses were for couples. However, due to marketing and advertising by mattress manufacturers in the latter half of the 20th century, the term "double beds" became interchangeable with "full-size." This was also when larger options like a king and queen-size mattresses became popular.

            Also, during this time, America witnessed an economic boom, and people started getting all wealthy. Those with big houses and mansions preferred larger mattresses like king and queen. With all these changing trends, double size beds gradually lost their demand to queen and king size beds.

            Nowadays, couples do not prefer a double mattress as it provides only 27 inches by 75 inches of personal space for each sleeper, which is not usually enough to achieve a good night's rest.

            Are Full Size Mattresses Good for Couples?

            If you're looking for the best mattress for couples, sadly, a full size mattress might not be the one for you. In fact, a full size mattress can actually cause problems for couples because there isn't enough room for both partners to comfortably sleep without disrupting each other's space.

            two people sleeping cramped on a full bed

            A full size mattress only offers each person about 27 inches of personal space, which can make it difficult to move around and get comfortable at night. And since the mattress isn't wide enough for both people to sleep on their back or stomach without touching, one or both partners may end up sleeping on their side feeling stuck the entire night - causing discomfort and potential strain on the hips and spine.

            As an alternative, a queen or king size mattress provides more surface area and allows couples to sleep more peacefully alongside each other.

            Pros of Full Size Bed

            A full size mattress offers numerous benefits that make it the better choice in the long run.

            1. Perfect fit for compact spaces

            When you are buying a new mattress, the first thing you should consider is the size of your room. If your bedroom space is limited or you live in small spaces like a studio apartment or dorm, a queen, king, or California king bed may not be the best option for you. One great thing about a full size bed is that its compact design makes it an ideal option to fit in most rooms without making the space feel overcrowded.

            natural and organic latex mattress topper

            Its smaller dimensions allow it to easily fit through narrow doorways and tight staircases. And that's not all; a full size bed also gives you more usable floor space in your room, allowing for flexibility in furniture layout and overall room design.

            2. Ideal for single sleepers

            Full size mattresses are a great option for individuals who love to spread out and feel unrestricted while sleeping.

            Unlike a twin, which can leave you cramped and uncomfortable, a full size allows maximum movement and relaxation during slumber. Not only does it provide ample space for stretching and turning during the night, but it also provides enough room for adding cozy pillows or even a loved one's pet to snuggle with.

            3. Accessories are easily available

            From mattress pads and toppers to bed frames and adjustable bases, bedding accessories are readily available for a full size bed. And thanks to the wide variety of retailers and online shopping options, finding the perfect accessories for your full mattress has never been easier.

            4. Budget friendly

            While it may seem like a full size mattress might break the bank, it actually offers far more bang for your buck in the long run. Be it for a child's room, guest room, or for a single adult looking for more room to sleep comfortably, a full size bed is a budget-friendly solution. Also, let's not forget that full-size bedding accessories will be less expensive than larger options.

            a cozy full size bed in a compact space

            Cons of full size bed

            A full size bed is indeed pretty awesome for single sleepers, but they may not be the best choice for everyone.

            1. Not ideal for couples

            For couples, a full size bed can feel cramped and uncomfortable, leaving little room to spread out or cuddle without waking each other up. What we meant by this is that, a full bed only offers 27 inches of personal space for you and your partner - well, that's pretty much the same width as toddler beds.

            2. Too short for tall people

            Full beds may also not be suitable for tall individuals, as their feet may hang off the end, or they may have trouble fitting their entire body on the mattress.

            Ultimately, selecting the right size bed is an important decision that should not be taken lightly. If you are planning to purchase a full bed, consider your own sleeping habits and preferences before making your choice to ensure the best possible sleeping experience.

            Full size bed and mattress accessories

            Of course, your mattress matters, but there are a few other bedroom essentials that will help you snooze cozy and comfortably at night. Find out the list of all those must-have full size bed and mattress accessories that should be a part of your bedroom.

            Bed frames

            When you invest in a high-quality, full size mattress, the last thing you want is for it to sag or become uneven over time. One way to prevent this premature wear and tear is by investing in a sturdy bed frame to provide support while you sleep. Not only will this prolong the life of your mattress, but it can also add an element of style to your bedroom.

            If you think the bed frame size is not going to affect the quality of your sleep, you're wrong. A frame that is too small in size can leave parts of the mattress hanging off the edge, leading to discomfort and potentially even injury. On the other hand, if the bed frame is too big, it will leave gaps on the sides of your mattress.

            bed frame size of a full mattress

            The dimension of a full size bed frame is 56 to 59 inches by 77 to 80 inches. So before you settle for that bare-bones setup on the floor, consider investing in the right size bed frame for your full size mattress – it's worth it in the long run!

            Mattress topper

            Ever heard of a mattress topper? As its name suggests, it's nothing but a thick removable layer of cushioning that goes on top of your mattress. But what is its purpose? Well, toppers are designed to noticeably change the firmness level of your existing mattress and, at the same time, improve its lifespan.

            high quality mattress topper for a full bed

            Are you finding it difficult to get a good night's sleep on your existing full size mattress? Are you waking up with aches and pains, or is the mattress just too soft or too firm for your liking? Investing in a mattress topper can be the solution to all of these problems. Just make sure you choose the right size mattress topper before you make the purchase.

            Mattress protector

            Next comes the mattress protector. Also known as a mattress cover, this removable layer of bedding sits on top of your full size mattress simply like a fitted sheet and serves different purposes. It keeps your mattress squeaky clean and acts as a layer of protection against any spills, accidents, dust mites, allergens, and other contaminants for a healthier and safe sleeping environment.

            Mattress protectors have nearly the same dimensions as that of standard mattress sizes. However, it's important to get the right size for your full bed as an ill-fit mattress protector might probably cause damage to your mattress and won't properly protect it.

            Sheets, Pillows, and Pillowcases

            Treat yourself to some new organic sheet sets, pillows, and pillowcases for the ultimate cozy nights of restful, rejuvenating sleep.

            The right sheets will feel soft and soothing against your skin, while a good pillow will support your neck and head to prevent tension and discomfort. And don't skimp on pillowcases - not only do they protect your pillows, but a luxurious material like Egyptian cotton can add an extra touch of luxury to your sleep experience.

            full size bed with sheets and pillows


            Last but not least, when shopping for the best full size mattress and bed accessories, don't skimp on the comforter - your well-rested self will thank you in the long run. A comforter not only adds extra warmth and coziness on chilly nights, but it also helps to regulate body temperature for comfortable sleeping year-round.

            Other standard mattress sizes and dimensions - Know which mattress size is right for you

            (Width x Length)
            DIMENSION IN CM
            (Width x Length)
            (Width x Length)
            Twin 38 X 75 inches 96.5 X 188.0 cm 3.16 X 6.25 feet
            Twin XL 38 X 80 inches 96.5 X 203.5 cm 3.16 X 6.66 feet
            Full 54 X 75 inches 134.5 X 190.5 cm 4.5 X 6.25 feet
            Queen 60 X 80 inches 152 X 203.5 cm 5 X 6.66 feet
            King 76 X 80 inches 193 X 203.5 cm 6.33 X 6.66 feet
            California King 72 X 84 inches 183 X 213.5 cm 6 X 7 feet

            In addition to a full size mattress, there are five other standard mattress sizes in the US. Let's take a closer look at the dimensions and peculiarities of each one of them.

            Twin mattress

              Also known as a single, a twin size mattress measures 39 inches wide and 75 inches long. It is the smallest standard mattress size and is perfect for children, teens, and adults in need of a smaller bed.

              Some people even opt for two twin mattresses instead of a larger option like a queen or king size - this allows them to customize their sleeping experience by choosing different levels of firmness on each side. Twin size mattresses are also great for guest rooms or vacation homes where space may be limited.

              Twin size bed dimensions

              • Dimensions in inches: 38 X 75 inches
              • Dimensions in cm: 96.5 X 188.0 cm
              • Dimensions in feet: 3.16 X 6.25 feet
              Twin xl mattress

                Measuring 39 inches by 80 inches, twin XL mattresses are 5 inches longer than a standard twin mattress and provide extra foot space without taking up too much room in the bedroom. These extra-long mattresses are a great choice for single sleepers (over 6 feet tall) or growing children. Due to their compact size, twin XL beds are also a good option for guest rooms, dorm rooms, and studio apartments.

                Twin XL size bed dimensions

                • Dimensions in inches: 38 X 80 inches
                • Dimensions in cm: 96.5 X 203.5 cm
                • Dimensions in feet: 3.16 X 6.66 feet
                Queen mattress

                  Measuring 60 inches wide and 80 inches long, a queen size mattress is a perfect compromise between the sprawling comfort of a king and the space-saving convenience of a twin. As the most popular mattress size, you'll also have no shortage of options from top brands.

                  Queen mattresses offer each sleeper a generous amount of personal space. They're also a smart choice for couples - not only does each person have more room to spread out, but the dimensions leave enough room for activities such as cuddling.

                  Queen size bed dimensions

                  • Dimensions in inches: 60 X 80 inches
                  • Dimensions in cm: 152.4 X 203.2 cm
                  • Dimensions in feet: 5 X 6.66 feet
                  King mattress

                    Measuring 76 inches by 80 inches, king mattresses are the largest standard mattress size. They may seem like a luxurious indulgence, but a king mattress can actually be the perfect family bed. With ample space for multiple people, a king bed is ideal for sharing with your partner and any children or pets who like to snuggle up in bed with you. Plus, the added surface area means that everyone can spread out and sleep comfortably without disturbing each other.

                    King size bed dimensions

                    • Dimensions in inches: 76 X 80 inches
                    • Dimensions in cm: 193 X 203 cm
                    • Dimensions in feet: 6.33 X 6.6 feet
                    California king mattress

                      Measuring 72 inches wide and 84 inches long, California king mattresses are narrower and longer than a standard king size mattress. And since they are 4 inches longer than the king, California king beds are better for people who are really tall.

                      Now you've come to a stage where you accepted the fact that full size beds are great for single sleepers and are too small for couples. If you have a partner, then it's always best to consider a much bigger option like a queen, king, or California king size mattress. If you have a very big family, say you share your bed with your partner and more than two kids, you can even go for larger options like an Alaskan king.

                      California king size bed dimensions

                      Dimensions in inches: 72 X 84 inches
                      Dimensions in cm: 183 X 213.5 cm
                      Dimensions in feet: 6 X 7 feet

                      an adult sleeping comfortably on a full bed


                      Can Full Mattresses Fit Bunk Beds?

                      Full mattresses measure 54 inches wide and 75 inches tall and are one of the wider mattress options best suited for bunk beds. Some bunk beds feature two full mattresses, but it's more common to see a full mattress on the bottom bunk frame with a twin or twin XL mattress on the top. This is due to the fact that as the size of the mattresses gets bigger, they weigh more, which in turn makes them less suitable for the top bunk frame.

                      Is a Full Mattress the Same as a Double Mattress?

                      Full and double are two different names for the same size mattress. As the two names are still popular, mattress companies often use them interchangeably.

                      Can You Use a Twin Size Sheet for a Full Size Bed?

                      A full size mattress measures 54 inches wide and 75 inches long, while a twin is only 39 inches by 75 inches. While it's possible to stretch a twin sheet over a full size mattress, it may not provide proper coverage or fit snugly around the corners. Investing in properly sized sheets will ensure a better night's sleep and add to the overall comfort of your bed.

                      What Is the Width of a Full Size Bed Frame?

                      A full size bed frame measures 56 to 59 inches in width; this means they are 16 inches wider than a twin bed frame.

                      What Is the Average Room Size for a Full Bed?

                      To accommodate a full bed, a room needs to be at least 10 feet by 10 feet.

                      Can I Put a Full Mattress on a Queen Frame?

                      No, a full size mattress is too small for a queen frame and, therefore, won't be a perfect fit. A queen frame simply has too much extra space for a smaller full size mattress, and it could lead to gaps or uneven support. In some cases, the extra space may even cause the full size mattress to slip or shift during use.

                      What Is the Difference Between a Full Mattress and a Queen Mattress?

                      A full mattress measures 54 inches wide and 75 inches long, while a queen is 60 inches by 80 inches. This means that two people sleeping on a full mattress will have just over 27 inches of personal space each, compared to 30 inches on a queen. This extra space can mean more room to move around and less chance for disturbance from a restless sleep partner.

                      natural and organic pillows

                      Related blog posts:

                      1. Mattress Sizes Chart and Bed Dimensions Guide

                      2. California King vs. Queen Mattress Size

                      3. King vs. Split King Mattress Size

                      4. A Detailed Guide on Full vs. Queen Size Mattresses: Which One Should You Sleep On?

                      5. Twin vs. Full vs. Queen Mattress Size Comparison

                      With all of this information, you should be well on your way to choosing the best full size bed for your needs. Be sure to measure the space in your room before making a purchase. If you have at least 10 feet by 10 feet in your bedroom, a full size bed could be the perfect option for you.

                      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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