Emperor Mattresses

Why choose an emperor mattress?

An emperor mattress gives you a generous 200 x 200cm sleeping surface, making it a practical choice when you want plenty of room to stretch out. The extra space can be particularly useful for:

• Couples wanting more room: Enjoy extra personal sleeping space and more freedom to change position.

• Taller sleepers: The 200cm length gives you more space to stretch out comfortably.

• A more luxurious bedroom: Create the spacious, hotel-style feel that suits a larger master bedroom.

• Family mornings: The wider surface provides useful extra room when children occasionally climb into bed.

How to choose the right emperor mattress

Start with your room measurements. A UK emperor mattress is typically 200 x 200cm, so you need enough space for the bed frame as well as room to move around it comfortably. As a practical guide, a bedroom of around 12ft x 12ft or larger gives you more scope to accommodate an emperor bed without making the rest of the room feel crowded. Remember to measure doors, stairways and other access points too.

Next, think about how you want the mattress to feel. If you share your emperor bed, pocket springs can be particularly useful because each spring moves independently. This provides responsive support and can help reduce movement travelling across the mattress when either sleeper changes position. 

Natural fillings may appeal if you prefer a more traditional feel and materials chosen with breathability in mind. Compare the fillings alongside firmness and construction rather than assuming one material will suit everyone.

Finally, check the details of the individual mattress. Emperor dimensions are not always consistent between manufacturers, so confirm the exact measurements before buying.

Why shop at MattressNextDay?

Next day delivery - Available on eligible in-stock mattresses across the UK mainland.

Lowest price promise - Compare emperor mattresses with extra reassurance when it comes to price.

Old mattress removal - We can collect your old mattress when your new one arrives.

Excellent reviews - Read verified customer reviews to help you make your choice.

Award-winning retailer - Order from a three-time NBF Online Bed Retailer of the Year.

British-designed quality - Explore British-designed mattresses made with carefully selected materials.

Need help choosing your next mattress?

Tell us how you sleep, the firmness you prefer and what you would like to spend. MattressFinder™ can quickly narrow down your options and make finding the right emperor mattress easier. Find your perfect mattress.

Buying guidance for emperor mattresses

Choosing an emperor mattress starts with making sure this generous size works for your bedroom, bed frame and sleeping needs. From dimensions to bedding, there are a few practical details worth checking before you order.

What size is a UK emperor mattress? Dimensions explained

A standard UK emperor mattress measures 200 x 200cm, giving you a square sleeping surface that is both wider and longer than many conventional UK mattress sizes.

However, emperor sizing is less standardised than sizes such as double or king. Some manufacturers and retailers use the name for alternative large dimensions, so do not rely on the word "emperor" alone. Check the exact centimetre measurements of both your mattress and bed frame to make sure they match.

An emperor bed also needs plenty of room around it. A bedroom measuring approximately 12ft x 12ft or larger is a useful starting point, although the right amount of space will depend on your bed frame and other furniture.

Before ordering, check:

• The mattress and bed-frame dimensions match

• There is comfortable walking space around the bed

• Bedroom and wardrobe doors can open properly

• The mattress can fit through doors, hallways and staircases

• There is enough room for bedside tables and other furniture

Emperor vs super king: Key differences

The main difference is width. An emperor mattress provides an additional 20cm compared with a standard UK super king, creating more individual sleeping room for two people.

That extra space can be useful if you both like to spread out, regularly change position or simply want a more generous bed. It can also give a large bedroom a more substantial, hotel-inspired look.

The trade-off is the amount of floor space required. Measure carefully before upgrading, including the complete dimensions of your chosen bed frame rather than the mattress alone.

Finding the right bedding and accessories for an emperor bed

An emperor bed needs appropriately sized bedding, so check measurements carefully when choosing fitted sheets, mattress protectors and toppers. Standard super king fitted products may be too narrow for a 200cm-wide emperor mattress.

Mattress depth matters too. Check the pocket depth of fitted sheets and protectors against your chosen mattress, particularly if it has substantial comfort layers or a deeper construction.

Delivery, recycling, and guarantees

Free next-day delivery to most locations - Need your emperor mattress quickly? Free next-day delivery is available across the UK mainland on eligible in-stock mattresses.

Free weekend delivery - Select a weekend delivery slot, if available, so your new mattress can arrive at a more convenient time.

Choose a delivery date - Pick your preferred delivery date at checkout to make planning for your larger new mattress easier.

Learn more about our delivery and returns policies.

We make old mattress disposal easy for you

Just £39 to responsibly dispose of your old mattress - Add old mattress removal at checkout for £39, and MattressNextDay will take care of your old mattress when your new one arrives.

100% of your mattress is reused and recycled - Your old mattress is broken down into its core components so the raw materials can be repurposed. Instead of going to a landfill, all of the mattresses are reused and recycled.

A greener way to get rid of your old mattress - Save yourself the hassle of arranging disposal separately with a recycling service designed to make replacing your mattress simpler.

Find a great value emperor mattress

Ready to upgrade to a more spacious mattress for less? Explore the latest MattressNextDay sale to compare offers across trusted brands, different comfort grades and a range of mattress sizes. Shop mattress sale.

Ask the expert about emperor mattresses

Choosing a mattress is easier when you know what to compare. Our product experts answer common questions about emperor mattresses, including size, suitability, feel, types and warranty.

Martin Seeley, Product Expert at MattressNextDay, answers questions about emperor mattresses.

How big should a bedroom be for an emperor bed?

As a practical starting point, a room around 12ft x 12ft or larger can accommodate an emperor bed while leaving space around it. Your exact requirements will depend on the size of the bed frame, bedside furniture, wardrobes and the layout of the room.

Map out the full frame dimensions before ordering. Check walking space at the sides and foot of the bed, make sure doors and drawers can open, and consider the delivery route into the bedroom as well.

Are emperor mattresses good for couples?

An emperor size mattress can be a good option for couples who value plenty of personal sleeping space. At 200cm wide, it gives each person more room than a standard super king.

The mattress construction matters as much as its size. Pocket sprung designs contain individually moving springs, which can provide responsive support and help reduce movement travelling across the bed when one person changes position. The supplied tone-of-voice guidance describes pocket springs as providing more responsive support because the springs sit independently in fabric pockets.

Do emperor mattresses reduce partner disturbance?

Size can give each sleeper more personal space, while certain mattress constructions can also help limit how much movement is felt across the surface.

Pocket springs are a useful option to consider because the springs move independently rather than as one connected unit. This can help reduce movement travelling from one side of the mattress to the other. It is better to think in terms of reducing movement rather than eliminating it completely, as the exact feel will depend on the mattress construction and sleepers.

What type of emperor mattress should I choose?

Start with the feel and support you prefer. Pocket sprung emperor mattresses can provide responsive support because the individual springs move separately. They may be particularly appealing to couples who want to reduce how much movement travels across a shared mattress.

Natural mattresses can offer a softer, more traditional feel, with breathable materials often chosen by people who prefer a fresher sleep surface. 

Also consider firmness, mattress depth, price and any applicable warranty before choosing.

Do emperor mattresses feel like hotel beds?

An emperor mattress can help create the spacious feel associated with larger hotel-style beds because of its generous 200 x 200cm dimensions. However, size alone does not determine comfort.

The mattress construction, firmness and comfort layers will shape how it feels. If you want a more luxurious setup, compare deeper comfort layers, responsive support and materials that match your preferred feel rather than choosing based on dimensions alone.

Can an emperor mattress work for family co-sleeping?

The larger sleeping surface provides more room when children occasionally join parents in bed, such as for a relaxed weekend morning. If you are considering regular bed-sharing, particularly with babies or very young children, follow appropriate independent safe-sleep guidance rather than choosing a mattress based on size alone.

For general family use, the main practical advantage is simply the additional width available compared with a super king.

Do emperor mattresses come with warranties?

Warranties vary by mattress, so always check the individual product page before ordering. 

Check the applicable terms alongside firmness, construction and price so you understand the reassurance included with your chosen emperor mattress.

What brands offer Emperor mattresses?

Our emperor mattress collection features mattresses from a range of well-known brands, including Hypnos and Panda® London. Whatever style or level of support you're looking for, you can find it in an emperor size.