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The bed and mattress size guide
If you are aiming to give your bedroom a fresh look, selecting the perfect mattress and bed dimensions becomes crucial to guarantee a comfortable night's rest. To assist you in making an informed choice, we have compiled a useful reference guide detailing the dimensions of each bed size and offering insights into which one suits your needs and help find your perfect fit. Our comprehensive guide covers both UK and European bed sizes, so you won't encounter any confusion. Additionally, it's wise to remember to verify the dimensions of the bed frames to ensure enough space, leave plenty of room and that they align with your desired design before making your purchase.
Choosing the right size mattress for your bed
To guarantee a seamless fit for your brand new mattress, it's essential to measure the length and width and align with your bed frame or base, ensuring you pick the right mattress size.
However, choosing the right bed and determining the ideal size hinges on various considerations, such as room dimensions and the number of occupants who will require the correct amount of sleeping space and will be enjoying cosy nights.
Rest assured, we are here to provide guidance on choosing the right bed or mattress, and the perfect choice for couples with ample space for 2 people. In the following sections, we will walk you through the specific dimensions of each bed and mattress size available in Ireland, making your selection process a breeze in choosing the right bed and mattress size.
Standard Bed & Mattress Sizes
| Bed/Mattress | Superking | King | Double | Small Double | Single | Small Single |
|---|---|---|---|---|---|---|
| Dimensions W x L (cm) | 180 x 200 | 150 x 200 | 135 x 190 | 120 x 190 | 90 x 190 | 75 x 190 |
| Dimensions W x L (feet) | 6'0" x 6'6" | 5'0" x 6'6" | 4'6" x 6'3" | 4'0" x 6'3" | 3'0" x 6'3" | 2'6" x 6'3" |
| Bed /Mattress | Dimensions W x L (cm) | Dimensions W x L (feet) |
|---|---|---|
| Super king | 180 x 200 | 6'0" x 6'6" |
| King | 150 x 200 | 5'0" x 6'6" |
| Double | 135 x 190 | 4'6" x 6'3" |
| Small Double | 120 x 190 | 4'0" x 6'3" |
Irish, UK and European bed sizes
When choosing a new bed or mattress, it’s important to check the size of your bed frame before you buy. In most cases, mattress sizes in Ireland follow the same standard sizes as mattress sizes in the UK, including single, double, king and super king.
European bed and mattress sizes can be different. They are often slightly longer or wider than common mattress sizes in Ireland, so a European mattress may not fit a standard Irish bed frame properly.
Before buying, always check the measurements rather than relying on the name of the size alone. Different mattress sizes can vary by a few centimetres, and even a small difference can affect how securely the mattress sits on your bed.
If you are replacing an old mattress, measure the size of your bed frame first and compare it against the product details. This is the safest way to make sure you choose the right mattress size in Ireland.
EU Bed & Mattress Sizes
| EU Bed/Mattress | Grand / Superking | King | Double | Single |
|---|---|---|---|---|
| Dimensions W x L (cm) | 180 x 200 | 160 x 200 | 140 x 200 | 90 x 200 |
| Dimensions W x L (feet) | 6'0" x 6'6" | 5'3" x 6'6" | 4'7" x 6'6" | 3'0" x 6'6" |
| Bed /Mattress | Dimensions W x L (cm) | Dimensions W x L (feet) |
|---|---|---|
| Grand /Super king | 180 x 200 | 6'0" x 6'6" |
| King | 160 x 200 | 5'3" x 6'6" |
| Double | 140 x 200 | 4'7" x 6'6" |
| Single | 90 x 200 | 3'0" x 6'6" |
What is the standard mattress depth?
Mattress depth can vary depending on the type, brand and design. Our mattress depths can range from slimmer options around 20cm through to deeper mattresses around 30cm or more, depending on the model.
When choosing the right mattress depth, it’s worth thinking about the level of comfort and support you prefer, as well as the overall height of your bed. A deeper mattress can make your bed feel higher, while a slimmer mattress may be more practical for lower bed frames, bunk beds, guest beds or children’s beds. As a general guide:
- Slim profile: Around 20cm or less, often suited to children’s beds, bunk beds, guest beds and lower frames.
- Standard profile: Around 20cm to 30cm, a common choice for many adults and everyday bed frames.
- Deep profile: Around 30cm or more, suited to those who prefer a more cushioned feel or a taller overall bed height.
Mattress depth can also affect your bedding, so if you choose a deeper mattress, make sure your fitted sheets are deep enough to sit securely. Always check the individual product details before buying, as mattress depth can vary by mattress size and model.
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Bed & Mattress Size In Detail
What size is a super king bed and mattress?
Luxurious Super King size beds and mattresses boast expansive dimensions, measuring 180 cm wide and 200 cm long (equivalent to 6 feet in width and 6 feet 6 inches in length), providing ample space in the room for a good night's sleep. This represents the most generous bed size within our range, catering to families who relish the idea of gathering for breakfast in bed or anyone who highly prioritises ample space to stretch. Our super king mattresses are thoughtfully crafted and come in a choice of memory foam mattress and pocket spring options, ensuring a comfortable night's sleep tailored to your preferences.
Best for: two people or more, perfect for couples, and those who like extra room.
What size is a king size bed and mattress?
When measured in metric units, a typical king size bed and mattress encompass dimensions of 150 cm in width and 200cm in length (equivalent to 5 feet in width and 6 feet 6 inches in length).
Notably, king size beds extend longer than double beds, rendering them an excellent choice for individuals of taller stature seeking that essential extra legroom, or for couples who aspire to elevate their sleeping space to a more spacious realm.
Best for: two people and those taller than 190 cm long (6ft 2ins)
What size is a double bed and mattress?
Double beds and mattresses are designed with dimensions of 135 cm in width and 190 cm in length (equivalent to 4 feet 6 inches in width and 6 feet 3 inches in length).
As the prevalent choice among bed sizes, standard double size beds offer an ideal solution for accommodating two individuals comfortably and are well-suited to most bedroom settings to provide enough room. For those interested in optimising bedroom space, consider the practicality of a double ottoman bed, which provides additional storage capabilities alongside its comfortable sleeping area.
Best for: two people and small to average sized bedrooms.
What size is a small double bed and mattress?
A small double bed and mattress exhibit dimensions of 120 cm in width and 190cm in length (equivalent to 4 feet in width and 6 feet 3 inches in length), making it a good choice for a cosy sleeper.
Often referred to as a queen size bed, these are primarily tailored for single-person use, though they can also comfortably accommodate two adults when required. If your bedroom falls on the cosier side, small double beds prove to be an excellent choice, particularly when paired with a divan or ottoman base, which cleverly optimises storage space within the room.
Best for: one person or couples with small bedrooms
What size is a single bed and mattress?
Single beds and mattresses measure 90 cm wide and 190 cm long (3ft wide and 6ft 3ins long). As the name suggests, they’re ideal for one person and small bedrooms.
They’re also great for children as they are cheaper, but still account for all growth spurts from roughly 4 years of age right through to teens.
Best for: one person
What size is a small single bed and mattress?
Small single beds and mattresses boast compact dimensions, measuring 75 cm in width and 190 cm in length (equivalent to 2 feet 6 inches in width and 6 feet 3 inches in length).
These beds are purposefully crafted to snugly fit within narrower kids' bed frames and guest beds. Their design prioritises space efficiency, making them a perfect choice for those seeking to maximise room space, especially when setting up spare rooms for guests.
Best for: Children from roughly 4 years’ old, small rooms and guest beds
What size is a toddler bed and mattress?
Toddler beds and mattresses come in petite dimensions, measuring 70 cm in width and 140 cm in length (equivalent to 2 feet 3 inches in width and 4 feet 6 inches in length), ensuring a perfect mattress for little ones. These beds are tailored to suit youngsters aged approximately between 1 and 4 years, particularly those who are transitioning from a cot to a single bed and require a gentle adjustment period.
For a comprehensive overview of our selection of toddler beds, we invite you to explore our guide on choosing your child's first bed, which offers valuable insights and further information on which size is best for them to sleep comfortably.
Best for: Toddlers and kids’ character beds
What size is a cot mattress?
Cot mattresses are crafted with dimensions of 60 cm in width and 120 cm in length (equivalent to 23 inches in width and 47 inches in length). These specialised mattresses are purpose-built for infants who slumber in a cot, catering to the sleep requirements of babies from birth to approximately 3 years of age.
Typically, these mattresses have a depth of around 10cm and are intentionally designed to be firmer than their adult counterparts. This firmness plays a crucial role in supporting your baby's development by ensuring proper alignment of their spine during sleep, contributing to their healthy growth.
Best for: Babies and toddlers who haven’t yet moved into a bed