Double Mattress: Dimensions and Choosing the Right Size for Your Bed and Bedroom 

Choosing a double mattress usually starts with the type of comfort and feel you want while sleeping, but selecting the right size is equally important. A mattress that is too small for two people can restrict movement, while an oversized bed can make it difficult to move around comfortably in a small bedroom.

 

To make the right choice, you need to consider three things together: the internal dimensions of the bed frame, the available space in the bedroom, and how you use the bed. Taking accurate measurements before purchasing will help you avoid mistakes and create a space that remains comfortable and functional.

Double Mattress Dimensions – What Are the Most Common Sizes?

There are several mattress sizes available on the market, with 140x200, 150x200 and 160x200 cm being common choices for a double mattress. Sizes of 180x200 cm and above offer even more personal sleeping space and are often referred to as king size.

• 140x200 cm: a more compact solution for a small bedroom or for one person who wants a larger sleeping surface.
• 150x200 cm: an intermediate option that combines comfort for two people with a relatively limited footprint in the bedroom.
• 160x200 cm: a spacious and popular size for couples when the bedroom allows for a little more width.

• 180x200 cm and above: a suitable choice when you want more personal space and the bedroom can comfortably accommodate a larger bed.

The terms “double,” “queen” and “king” are not always used in exactly the same way by every company. For this reason, do not rely solely on the name of the size. Always check the actual dimensions in centimetres.

How to Measure Your Bed Correctly

 

The mattress should fit the internal space of the bed frame, not its external dimensions. Measure the clear width and length from inside edge to inside edge, exactly where the mattress will be placed. Take measurements at more than one point, especially if the frame is old or handmade.

Also check the available depth within the frame. A very high mattress may cover a large part of the headboard or sit higher than is comfortable for you. Similarly, a mattress that is too low may “sink” into a deep frame and make sitting down or getting up more difficult.
 

Quick Measurement Checklist

• Measure the clear internal width of the frame.
• Measure the clear internal length.
• Check the depth at which the mattress will sit.
• Note the total height of the bed base and mattress from the floor.
• Confirm that the bed base has the same nominal dimensions as the mattress.

Choosing a Mattress Size Based on the Bedroom

For a Small Bedroom

In a small bedroom, a 140x200 cm mattress can leave more available space for bedside tables, wardrobes and comfortable movement around the room. Before deciding, mark the outline of the bed on the floor using masking tape. This will give you a clearer idea of how easily you will be able to move around every day and whether doors and drawers can open without obstruction.

For a Standard Double Bedroom

Sizes of 150x200 or 160x200 cm generally offer a good balance between sleeping space and bedroom functionality. If you share the bed, the extra centimetres of width can make a noticeable difference, especially when one person frequently changes sleeping position or when you follow different sleep schedules.

For a Large Bedroom

If there is enough space, a mattress measuring 180x200 cm or larger can provide a more independent sleeping surface for each person. However, make sure that the bed does not dominate the room and that access from both sides remains practical.

How Much Free Space Do You Need Around the Bed?

It is not enough for the bed simply to fit in the room. You need enough space to make the bed, walk around without bumping into the corners, and comfortably use the other furniture. Pay particular attention to the distance between the bed and the wardrobe, drawers, bedroom door and radiator.

If space is limited, consider choosing a slightly narrower bed rather than sacrificing all the circulation space around it. Bedroom comfort depends both on the sleeping surface and on how easily you can use the room every day.
 

What to Consider When Sharing a Bed

 

When sharing a bed, the appropriate width depends on body type, movement during sleep and the amount of personal space each person needs. Try the mattress together with your partner and lie down in your usual sleeping position. Notice whether you feel restricted near the centre or easily reach the edges. If so, it may be worth considering a larger size.

 

Length is also important. Ideally, the mattress should provide enough additional space beyond the height of the taller person so that their feet do not reach the end of the mattress. If a standard length is not sufficient for the taller person, you can consider a custom size.

What If the Bed Has Non-Standard Dimensions?

 

Older beds, handmade frames or custom constructions may not correspond to standard mattress dimensions. In this case, measurements must be taken accurately and confirmed before placing an order. Candia offers the option of manufacturing mattresses in custom sizes, with adjustments in 2 cm increments in both width and length.

 

Before choosing a custom size, also consider future use. A non-standard mattress will require a suitably sized mattress protector and bed linen, and it may be more difficult to transfer to a different bed frame in the future.
 

Compatibility With the Bed Base and Frame

The mattress, bed base and bed frame work together as a complete system. A base that is the wrong size or does not provide the required support can affect the mattress’s fit and performance. Check the manufacturer’s instructions and make sure that central reinforcement is provided where required, particularly for larger double sizes.

If you are designing your bedroom from scratch, you can explore the available beds and bed bases together to ensure that all dimensions match correctly. If you are keeping your existing bed frame, accurately measuring its internal dimensions should come before choosing your mattress.
 

Mattress Height, Mattress Protector and Bed Linen

Width and length are not the only measurements you need to consider. Mattress height affects the final height of the bed, the fit of the mattress protector and the pocket depth required for fitted sheets. If you use a mattress topper, remember to include its height as well.

Before completing your purchase, check which mattress protectors and bed linen are compatible with the size and total height of the mattress. This will help you avoid fitted sheets that pull at the corners or a mattress protector that does not fit the sleeping surface properly.

Beyond Dimensions: Support and Feel

Two mattresses with exactly the same dimensions can provide very different sleeping experiences. The support core, comfort layers, firmness and response to movement all need to be evaluated separately. The right size ensures that you have enough space, while the right construction determines how you feel when lying on the mattress.

For a more comprehensive approach to choosing your mattress, read our guide “How to Choose the Right Mattress According To Your Sleeping Position” and try different models in the position in which you usually sleep.
 

Double Mattress Dimensions – Checklist Before Ordering a Double Mattress

• Check the internal dimensions of the bed frame in centimetres.
• Calculate the available space around the bed and make sure furniture can open properly.
• Consider whether the width is comfortable for two people and suits your sleeping habits.
• Check whether the length is suitable for the taller person.
• Confirm that the mattress is compatible with the bed base and frame.
• Take into account the mattress height, any mattress topper and the required depth of your fitted sheets.
• For a non-standard bed, confirm the custom dimensions in writing before placing your order.

 

If you want to narrow down your options before trying different mattresses, you can use Candia’s Ideal Mattress Finder System. It helps you start with your personal needs and compare models more effectively in the size that best suits your space.
 

Candia Double Mattresses for Different Needs

The right choice is not the same for every double bed. For this reason, the following models have been selected to meet different needs directly related to this article: independent response for two people, a firmer feel, different mattress heights and the possibility of adapting to non-standard dimensions.

Before making your decision, confirm the size you need and try the mattress together with your partner. The construction and feel should suit both of you, not just the dimensions of the bed frame.
 

Assos

The ASSOS is a useful option when you want to consider not only the width and length of the mattress but also the overall height of the bed. It features Advanced Support independent springs, perimeter foam reinforcement and an integrated Eurotop, with a height of 30 cm. Try it in the double size you are considering and check whether the final bed height is comfortable for sitting down and getting up.
 

Product URL: https://www.candia.gr/en/mattresses/principal/assos

Acanthus

The ACANTHUS features Prime Pocket Springs, perimeter reinforcement and eight layers of materials. In a double mattress, independent springs are a feature worth considering together with your partner, as they respond locally to the pressure and movement of each person’s body.

Product URL: https://www.candia.gr/en/mattresses/principal/mattress-acanthus

Akrotiri

If you prefer a firmer feel, the AKROTIRI offers a different option with the DuraFirm Bonnell spring system, ten layers of materials and perimeter foam reinforcement. Trying it in the correct double size will help you determine whether the level of support is suitable for both you and the person with whom you share the bed.

Product URL: https://www.candia.gr/en/mattresses/principal/akrotiri

Apollonia

The APOLLONIA combines the Dura-Ace Bonnell spring system with foam materials and has a height of 29 cm. It is also available in a Low Profile version, making it particularly useful when the bed frame is deep or when you want a lower overall bed height.

Compare both versions on the specific bed frame you intend to use.

Product URL: https://www.candia.gr/en/mattresses/principal/apollonia

Pella

The PELLA is an option directly related to the subject of mattress dimensions, as its product page offers width and length options in 2 cm increments. It features Advanced Support independent springs, perimeter foam reinforcement and a height of 33 cm. It can be considered when the bed has non-standard dimensions, provided that you first accurately confirm the internal measurements of the frame.

Product URL: https://www.candia.gr/en/mattresses/luxuriant/pella

Double Mattress Dimensions – How to Make Your Final Choice

The right mattress size is one that simultaneously suits your bed, your bedroom and the way you sleep. Measure carefully before ordering, check the available space around the bed and try the mattress together with the person who will be sharing it.

Within the CANDIA mattress collection, you can compare different support systems and comfort levels in the size you need. If you are unsure which option to choose, guidance at a CANDIA store can help you find a solution that truly suits both your bedroom and your individual needs.