Mattress Sizes and Bed Dimension Guide Ireland | Irish Beds & Mattress Size Explained

Irish Mattress Size Guide

Beds come in many different standard mattress sizes. What’s the best bed size for your bedroom? While comfort should always be your goal, knowing the standard Irish bed size and dimensions can help you choose the perfect type of bed for you and your home.


Mattress Dimensions & Sizes


Bed/Mattress Size Centimetres Feet
Super King 180cm x 200cm (6’0″ x 6’6″)
King 150cm x 200cm (5’0″ x 6’6″)
Double 135cm x 190cm (4’6″ x 6’3″)
Small Double 120cm x 190cm (4’0″ x 6’3″)
Single 90cm x 190cm (3’0″ x 6’3″)
Small Single 75cm x 190cm (2’6″ x 6’3″)

Irish Mattresses Size Chart

A visual representation of the different sizes available for the Fitzwilliam natural latex mattress with corresponding Dimensions.

Besides personal preference, there are many factors to think about before choosing your mattress size. You will want to the size of your bedroom, if you will be sharing a bed with a someone, and your available space.

Here we will explain the dimensions of all the 4 most common Irish bed sizes so you choose the best size for yourself. Also, we will answer commonly asked questions when it comes to bed sizes and choosing a bed.



Single: 90cm x 190cm


This size is best for kids, teenagers, single adults or anyone with limited space.

single bed is the smallest available bed size on the market at 38 inches wide and 75 inches long. Its small size makes it ideal for single sleepers — either children or adults with small spaces like a studio apartment with limited space.


Small Double Bed: 120cm x 190cm

A small double bed is a perfect size for a guest room or a child’s bedroom. It offers more space than a single bed but is still compact enough to fit in smaller rooms. A small double bed is also a great option for couples who want to have more space for themselves. With a width of 120cm, a small double bed provides plenty of room to sleep comfortably. No matter which size you choose, a small double bed is a great way to save space in your home.


Double: 135cm x 190cm

Best for Singles or Children who like to sprawl out.

double mattress fits well in master bedrooms that are a minimum of 3 x 3 meters. A double bed is 135 centimetres wide and 190 centimetres long, and It offers plenty of space for single people who like having a little extra space to move around in bed.

King: 150cm x 200cm

Bed Natural Latex Foam

Best bed for couples who enjoy their space or share a bed with children.

The king is 76 inches wide and is 80 inches long, and the king bed is large enough for couples who share the bed with their children. A king bed will fit best in a master bedroom.



Super King Size: 180cm x 200cm


Best bed size for couples who have children or those who want a luxurious amount of space.

Super King beds are 180cm wide and 200cm long. Since it’s the largest standard size bed available, this means an unbeatable amount of space for sleep. Super King Beds are the best mattress for if you value a lot of space or your family all like to squeeze in together on some nights, the super king is a perfect choice.


Which Size Is The Best For Me?


mattress size guide infographic

If it is time for a new bed, you may be wondering which size is correct for you. There are many factors to consider, like who will be sleeping in your bed, how much space you will need, how much space is in your bedroom and any specific health or sleep issues you might have to face.

It is essential to evaluate your own needs. If you have back pain or sleep problems, These variables will help you decide.


Here are the other major factors you will want to consider when choosing your bed.


Consider Who Is Going To Sleep In The Bed

Are you going to be sharing the bed with a partner? Do your children or dogs normally sleep in your bed? These are questions to consider for yourself before choosing a mattress size. Normally twin, twin XL and full beds are designed for one person. The queen and king beds are large enough for two sleepers.

If you are going to be sleeping with another person, decide how close you will like to sleep and think about your usual sleeping positions (e.g. side sleeping). If you both stretch out when you sleep the extra room afforded by a king will work well for you.


The Size of Your Room and Choosing Your Bed 

The amount of space in your room is very important. Larger sizes will take up more room in your bedroom, so you will need to decide accordingly.

Here is sizes in centimetres. This will make deciding easier, also make sure to leave a little extra space.

  • Single (3′ x 6’3) 90cm x 190cm
  • Double (4’6 x 6’3) 135cm x 190cm
  • King (5′ x 6’6) 150cm x 200cm
  • Super King (6′ x 6’6) 180cm x 200cm


Choosing The Right Bed for Your Body Size & Shape

To get your best sleep, you should consider your height and width when choosing a bed. A double mattress is 190 centimetres in length, while a king is 200 centimetres in length. So, if an individual is taller, a double mattress might not be as not comfortable for them. Instead, it’s best to go with a larger bed such as the king or super king, all of which can better accommodate great sleep.

Your Budget

The amount of money you can spend on a mattress will also help you choose the right size for you. A king costs more than a queen, and a queen costs more than a single. Buying a mattress that will meet both your size needs, and also budget. That being said, you should consider investing in your sleep when and where you can. We hope our guild helped you learn all about the sizes and dimensions of different mattresses in Ireland, and that you are able to make an informed decision regarding your next mattress.


How Do I Find My Size Bed?

The best way to measure the size of your mattress is to grab a tape measure and do it yourself. Odds are if you’ve had your mattress for a while, it can be easy to forget what size your mattress was when you bought it.

To measure your mattress’s size, use a tape measure to determine both the width and length of your mattress in inches. When you have gotten the size of your mattress and written it down, compare what you wrote to common sizes found in your country.

Here is a table of the most common mattresses sizes in Ireland for you to compare

  • Single (3′ x 6’3) 90cm x 190cm
  • Double (4’6 x 6’3) 135cm x 190cm
  • King (5′ x 6’6) 150cm x 200cm
  • Super King (6′ x 6’6) 180cm x 200cm



Children’s Sizes

As we know, children grow quickly, and a kids mattress should suit their needs during each phase of development. For this reason, kids can choose from a variety of sizes—from cribs to singles or even double mattresses.

The first few years of a kid’s life are spent sleeping on a crib or a toddler-size mattress. In fact, convertible cribs have been created that can be converted into toddler beds *and sometimes full size beds are best for children as they grow and develop. However, by the time children are ready for school, they are ready to sleep on a single-sized mattress.

Although teens can sleep in a single bed until their early 20s, you may wish to opt for a bit bigger mattress. Having a double mattress provides extra length to accommodate teenage growth spurts.

Many families consider a teenager having a room of their own an important right of passage. Some parents may decide to buy a queen or king bed for their teens for their new bedrooms. Additionally, these larger beds could be used by a young adult’s first home if they are durable.

Which Beds Are the Most Durable?

Latex mattresses are the most durable type of mattress. Typically, latex mattresses last over 10 years.  Memory foam mattress typically lasts anywhere from 5-7 years. Hybrid mattress last the same amount of time as memory foam mattresses, while innerspring mattresses typically only last 4 to 6 years.

What are the Most Popular Full Size Mattress Sizes?

Beds are available in all shapes and sizes, so you should be able to find a suitable mattress for your needs and lifestyle. It can be helpful to see what sizes are trending to understand more about what size mattress might be right for you.

In Ireland, a double size is the most common choice across all adult age groups. About one-third of all adults over the age of 30 sleep on a queen-sized bed, with 40% of adults aged 18 oversleeping on a queen-sized mattress.

The next two most popular sizes are the king and single options. These two sizes are the choice for approximately 35 percent of the population

Less than 15 percent of people sleep on a Super King mattress.


Extra-Long Sizes

If you are tall, you know how difficult it is to find a mattress that fits your size. For this reason, The Spinery offers custom mattresses for tall people. Mattresses should fit your specific needs because not everyone’s size is the same. We believe that you should have a mattress that will make you feel comfortable and supported regardless of your height.


Mattress Depth & Thickness

As soon as you decide on the perfect size, you may wonder what depth is ideal for your next mattress. The assumption is that a thicker mattress indicates greater comfort. However, this is not always the case. In addition to the thickness of your bed depending on your specific sleep needs, the mattress materials, if any, maybe just as important or even more so.

Mattresses can range in thickness from a slim 15-20 centimeters to a super thick 30+ centimeters. The general “sweet spot” for comfort and durability is anywhere between 20-25 centimetres. Most people find this range to have an ideal balance between comfort, durability, and lift. Thin mattresses tend to provide less comfort, but comfort doesn’t increase significantly after about 25 centimetres in thickness.

A slim mattress is typically better for people who have mobility issues or who move their bed frequently.

Thin mattresses are usually soft and generally less supportive because of their smaller size, making them an excellent choice for lighter people. Thinner mattresses also have less height, making them ideal for people who need help getting in and out of bed.

Thicker mattresses are better for heavier people since they distribute their weight more evenly over a greater area of the mattress. This reduces the wear and tear on it and increases the mattress’ lifespan. Furthermore, thicker mattresses can provide more support. One other reason someone might choose a thicker mattress is if they enjoy a longer bed.  Thick mattresses comfortably placed on box springs can also help you get a nice lift. Most bedding is designed for a standard 20′′-25′′ mattress thickness, so it can often be difficult to find sheets for super thick mattresses.


You can narrow your search by looking at key factors such as mattress types, thickness, and cost. There are many different dimensions of mattresses, and the quality, space, and budget of the mattress are all significant factors in your sleep.

People of average size might indeed have the easiest time selecting a mattress size, but there are Irish custom mattress options available for people with bigger and taller frames as well. It is important to remember that choosing the right mattress size takes some time and effort.

It’s essential to consider many factors when choosing your mattress size, but the most important is comfort! You’ll be sleeping on your mattress for years to come. Choose wisely, and you can get the great night’s sleep you deserve. Whatever your height or sleep preference, there is always a mattress size that is perfect for you.

Visit The Spinery’s Mattress Showroom Today

If you have any questions about our mattresses feel free to call us (01) 284 4093.
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