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The Ultimate Guide to Mattress Sizes in Ireland

Selecting the perfect mattress size is not just a matter of personal comfort; it’s a decision that influences the quality of your sleep, the look and feel of your bedroom, and the effective use of your space. In Ireland, where the dimensions and naming conventions of mattresses may vary from what you might find elsewhere, understanding Irish mattress sizes becomes particularly important. Whether you’re outfitting a cosy room in a traditional Irish cottage or furnishing a modern, spacious apartment, knowing the nuances of mattress sizes can greatly enhance your living space and sleep experience.


This comprehensive guide is dedicated to unravelling the complexities of mattress sizes in Ireland, ensuring you can make a choice that suits your lifestyle, preferences, and spatial requirements. Each mattress dimension offers unique benefits and considerations, from the compact and efficient single size to the expansive luxury of the super king size. But the significance of choosing the correct size extends beyond the mattress itself—it affects everything from the room layout to how you interact with your space on a daily basis.


Moreover, with the growing trend of international online shopping, the differences between Irish mattress sizes and those from other countries have become more pertinent than ever. It’s not uncommon for shoppers to find themselves puzzled by the array of options or, worse, ending up with a mattress that doesn’t fit their bed frame or room as expected. As such, familiarising yourself with the specifics of Irish mattress sizes can save you from inconvenience and ensure that your investment contributes positively to your overall well-being and sleep health.

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Understanding Mattress Sizes in Ireland

When selecting a mattress, it’s essential to know the standard sizes available in Ireland. Here’s a breakdown:

Single Size:

Single 3ft Mattresses with dimensions of approximately 90cm x 190cm, cater perfectly to children, teenagers, or any individual sleeping alone. This size fits seamlessly into smaller bedrooms or guest rooms, offering ample sleeping space for one person without overwhelming the room’s layout. Its compact footprint makes it an ideal choice for optimizing space in studio apartments or for fitting into multi-use rooms, ensuring that the area remains versatile for other activities during the day. 

Small Double Size: 

The small double 4ft mattress, measuring around 120cm x 190cm, is an excellent option for single sleepers who prefer more space to stretch out or for couples who have to manage limited living spaces. This mattress size is a smart solution for making the most of small bedrooms, offering a comfortable sleeping area that doesn’t compromise on floor space. It’s also a popular choice for guest rooms, providing a more generous sleeping area than a single mattress without the full commitment to a double size.

Double Size: 

At 135cm x 190cm, the double 4ft 6 mattress has become a staple in many Irish homes, striking a perfect balance between size and comfort. It’s well-suited for couples, offering enough space to sleep comfortably while still being compact enough to fit in most bedrooms without dominating the space. This size is often preferred for its versatility, easily accommodating guests or serving as a luxurious upgrade from a single mattress for individuals in search of more sleeping room.

King Size:

The king-size 5ft mattress, with dimensions of 150cm x 200cm, is a step towards luxury for couples seeking extra space and comfort. This size provides ample room for two people to sleep without disturbing each other, making it an excellent choice for restless sleepers. The additional length and width can make a significant difference in sleep quality, especially for taller individuals or those who value their space at night. Its larger size requires a reasonably sized bedroom to accommodate it comfortably, making it a symbol of spacious and indulgent sleeping arrangements.

Super King Size:

Representing the pinnacle of spacious and comfortable sleeping, the super king 6ft mattress measures an expansive 180cm x 200cm. This size is for those who place a high priority on space and comfort, providing an unrivalled sleeping area that allows for complete freedom of movement. It’s particularly suited for larger bedrooms, turning the sleeping area into a luxurious retreat. Whether for individuals who enjoy sprawling out or couples who appreciate the extra space to ensure a restful night’s sleep, the super king size offers the ultimate in-bedroom luxury and comfort.

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Essential Tips for Buying the Right Mattress Size:


When it comes to purchasing the right mattress size, several additional factors can play a crucial role in ensuring you make the best choice for your comfort and room aesthetics. Here are some expanded tips to guide you through the process:

Measure Your Room Accurately

Before embarking on your mattress shopping journey, it’s crucial to arm yourself with precise measurements of your bedroom. This task goes beyond just noting the floor area. You need to take into account the placement and dimensions of windows, doors, and any built-in features like closets or shelves. Understanding these elements is key to visualizing how your new mattress will integrate into the existing layout. It’s not just about ensuring the mattress fits; it’s about maintaining balance and harmony in the room’s design, ensuring easy access, and optimizing the flow and functionality of the space.

Consider the Scale of Your Bedroom Furniture

The furniture accompanying your bed plays a significant role in your bedroom’s overall aesthetics and functionality. When selecting a mattress size, consider how it will look and function in conjunction with pieces like bedside tables, dressers, and wardrobes. A large, king-sized bed might dwarf smaller furniture items, making the room feel unbalanced, while a modest double bed could be swallowed by more substantial furniture pieces. Achieving a sense of proportion and visual harmony is key, ensuring that the bed and furniture complement each other and create a cohesive look.

Think About Bed Access and Movement

The practicalities of everyday use should influence the size of the mattress you choose. It’s important to ensure that there is enough space around the bed for easy access, making tasks like changing the sheets or simply getting in and out of bed hassle-free. Additionally, consider the ease of movement around the room once the bed is in place. Maintaining clear pathways for movement and avoiding a cramped or cluttered feeling is essential in smaller bedrooms or those with multiple pieces of furniture. This consideration is about balancing the desire for a larger mattress with the practicalities of your living space.

Opt for a Larger Size If You’re Unsure

When in doubt between two sizes, leaning towards the larger option can often be the wisest choice, especially for those sharing a bed. A larger mattress can dramatically improve sleep quality by offering each person ample personal space, reducing disturbances from movement throughout the night. This is particularly relevant for light sleepers or those with differing sleep schedules, ensuring that both partners can enjoy a restful sleep environment.

Consider Your Sleeping Habits 

Personal sleeping habits are a critical factor in choosing the right mattress size. For those who move a lot in their sleep, a larger bed can prevent disruptions for both you and your partner. Moreover, for individuals who use their bed for activities beyond sleeping, such as reading or working, a larger mattress can provide the necessary space and support to do so comfortably. Taking your lifestyle and nightly routines into account can guide you to a mattress that meets all your needs.

Future-Proof Your Purchase

When investing in a new mattress, consider not just your current situation but potential future changes as well. Life events such as moving to a bigger house, changes in relationship status, or children growing up can affect the suitability of your mattress size choice. Opting for a slightly larger mattress now might prevent the need for another purchase in the near future, offering both practical and financial benefits in the long run.


Test the Mattress with Your Partner 

Testing mattresses together should be a non-negotiable part of the selection process for those who share their bed. This ensures that the chosen mattress provides adequate space and meets the comfort preferences of both individuals. It’s about finding a balance that allows for both closeness and individual space, ensuring a harmonious and comfortable sleep environment for both partners.

Enquire About Delivery and Assembly 

Finally, ensure the practicalities of getting your chosen mattress into your bedroom are considered. Large mattress sizes pose challenges in terms of delivery and installation, especially in homes with narrow doorways, tight staircases, or other logistical constraints. Discuss delivery and assembly options with the retailer to avoid any surprises on delivery day, ensuring a smooth and stress-free addition to your home.

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Choosing the Right Mattress with Des Kelly Interiors

In conclusion, selecting the right mattress size is a crucial but often overlooked aspect of achieving optimal sleep quality and bedroom aesthetics. With over 50 years of experience in the mattress industry, Des Kelly understands the nuances of this decision, especially within the unique context of Irish mattress sizes. Whether you’re navigating the choices for a snug single room or looking to luxuriate in the expansive comfort of a super king-size bed, our extensive range caters to every need, preference, and room size. Contact us today to find out how we can help.

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