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  1. Pocket Royale Mattress

    Deep Sleeper Pocket Royale King Size Mattress

    £359.95

    Super soft king size pocket sprung mattress. Deep, white fibre fillings with hand tufting and stretch cover creates a sumptuous feel. Soft comfort level. FREE Express Delivery. See More
    availability
    6
  2. Deep Sleeper Prime Mattress

    Deep Sleeper Prime King Size Mattress

    £189.95

    23cm deep stretch knitted fabric covered king size mattress. 13.5 gauge spring unit and polyester fillings creates a medium feel, slightly firmer mattress offering excellent value. FREE Express Delivery. See More
    availability
    6
  3. Supreme Ortho Mattress

    Deep Sleeper Supreme Ortho Tufted King Size Mattress

    £289.95

    26cm deep orthopaedic coil spring king size mattress using a robust 12.5g spring unit. Hand tufted with a robust damask cover this mattress uses a thick layer of high density foam to add firmness and support. Firm feel. FREE Express Delivery. See More
    availability
    8.5
  4. Tuscan Ortho Mattress

    Deep Sleeper Tuscan Ortho King Size Mattress

    £229.95

    26cm deep semi orthopaedic coil spring king size mattress using a robust 12.5g spring unit. Covered by a comfy stretch fabric cover with polyester fillings. Medium firm feel. FREE Express Delivery. See More
    availability
    7.8
  5. Deep Sleeper Vienna Mattress

    Deep Sleeper Vienna King Size Mattress

    £179.95

    21cm deep damask covered king size mattress. 13.5 gauge spring unit and polyester fillings creates a softer medium feel, comfy mattress at a good price. FREE Express Delivery. See More
    availability
    5.5
  6. Wool Pocket Mattress

    Deep Sleeper Wool Pocket King Size Mattress

    £459.95

    Luxurious and supportive king size pocket sprung mattress with wool fillings and wool hand tufts. Superior knitted fabric cover adds responsive comfort. Handles for turning. Medium/Firm comfort level. FREE Express Delivery. See More
    availability
    7
  7. Dual Memory Mattress

    Dual Sided Memory King Size Mattress

    £249.95

    Brilliant value memory foam and spring king size hybrid mattress. Medium support for a comfy nights sleep. Memory foam both sides enables the mattress to be turned therefore extending the life of the mattress. See More
    availability
    6.8
  8. Duo 1000 Mattress

    Duo 1000 Kingsize Mattress

    £649.95

    The Duo 1000 kingsize mattress is designed to tackle the problems many couples face when sharing a bed. More sleep area, less partner disturbance, optimal sleep temperature and customisable levels of support for each half means each partner gets a perfectly supported, undisturbed nights sleep.FREE Express Delivery. See More
    availability
    6.5
  9. Eclipse Ortho Firm Mattress

    Eclipse Ortho Firm King Size Mattress

    £299.95

    Deep, extra strong springs with a hand tufted finish provides a super firm orthopaedic support king size mattress. (Depth 27cm). Only for those who favour a very firm sleeping surface .Suits all base types. In Stock For FREE Express Delivery. See More
    availability
    9.2
  10. EcoBrease Memory Foam Mattress

    EcoBrease Lite Memory Plus King Size Mattress

    £259.95

    20cm deep memory foam king size mattress with a 2cm vasco memory foam layer, 3cm high density layer and a 15cm EcoBrease support layer. All covered in a responsive stretch fabric cover. Medium feel. In Stock For FREE Express Delivery. See More
    availability
    7.5
  11. Elstom Cool Gel Pocket Mattress

    Elstom Cool Gel Hybrid King Size Mattress

    £529.95

    PRICE DROP WAS £699. Star buy, king size cool gel 1000 pocket hybrid mattress. Extra tall 1000 pocket spring count mattress core with a cool gel infused pressure relieving comfort layer for a very popular medium feel. Deep reinforced border increases mattress life and gives a larger sleep surface. Border incorporates air mesh for greater air flow and handles for convenience. No turning required. FREE Delivery. See More
    availability
    7.5
  12. Essentials Luxury Pocket Mattress

    Essentials Pocket Luxury 1000 King Size Mattress

    £359.95

    Extra value, king size, luxury pocket 1000 mattress with a luxurious bamboo knitted, stretch cover. Sumptuous white fibre fillings and tack and jump finish provides a comfy medium level of support. Two sided, requires turning. FREE Express Delivery. See More
    availability
    6.8
  13. Essentials Memory Pocket Mattress

    Essentials Pocket Memory 1000 King Size Mattress

    £359.95

    Superb value, king size size, memory pocket 1000 mattress with a luxurious knitted, bamboo stretch cover. Sumptuous and deep at over 27cm this popular mattress will provide a medium to soft level of support. No need to turn. FREE Express Delivery. See More
    availability
    6.5
  14. Essentials Natural Pocket Mattress

    Essentials Pocket Natural 1000 King Size Mattress

    £359.95

    Fabulous value, king size, natural pocket 1000 mattress with a luxurious bamboo knitted, stretch cover. Layers of fresh natural fillings and hand tufted finish provides a medium to slightly firm level of support. Two sided, requires turning. FREE Express Delivery. See More
    availability
    7
  15. Essentials Ortho Pocket Mattress

    Essentials Pocket Ortho 1000 King Size Mattress

    £359.95

    Stunning value for money, king size, ortho pocket 1000 mattress with a luxurious bamboo knitted, stretch cover. Deep layers of firmer fillings sit above responsive pocket springs and a micro quilted finish to provide a firmer level of support for this popular mattress. Two sided, requires turning. FREE Express Delivery. See More
    availability
    7.5
  16. Excellence 1000 Pocket Mattress

    Excellence 1000 Pocket Sprung King Size Mattress

    £419.95

    1000 individual pocket springs with deep polyester fillings. Reinforced edge with border encapsulation increases sleeping area. Comfy, stretch fabric cover and micro quilt finish adds up to a supportive, medium to slightly firm feel, king size mattress. One sided, no turning over required. Handles for rotating. FREE Express Delivery. See More
    availability
    7.7
  17. Gel Encapsulated 1000 Pocket Mattress

    Gel Encapsulated 1000 Pocket Sprung King Size Mattress

    £659.95

    Quality and craftsmanship are immediately evident in this stunning king size mattress. Cooling, knitted cover and cool gel fillings sit above a responsive 1000 pocket spring unit. Encapsulated foam edge border retains support right to the very edge and extends life of mattress. Medium to firm and ultra supportive. FREE Express Delivery. See More
    availability
    7.7
  18. Gel Touch 1000 Mattress

    Gel Touch 1000 Pocket Sprung King Size Mattress

    £399.95

    Fantastic value 1000 pocket sprung king size mattress with cool gel memory comfort layer. Flexiedge reinforced border retains support right to the very edge. Comfy and supportive. FREE Express Delivery. See More
    availability
    7.5
  19. Georgia XDeep Mattress

    Georgia XDeep Kingsize Mattress

    £399.95

    Extra deep,extra comfortable,extra supportive kingsize mattress.A giant of a mattress at a fantastic price.Stretch,knitted fabric cover with Airflow border.FREE Express Delivery. See More
    availability
    7.5
  20. HG Beds Verona Mattress

    HG Beds Verona King Size Mattress

    £159.99

    Great value, medium feel king size mattress with an all over damask cover. Excellent for bunk beds.Two sided.In Stock for FREE Express Delivery. See More
    availability
    5.5
  21. Highgrove Kingsbury 1000 Pocket Spring Mattress

    Highgrove Beds Kingsbury 1000 Pocket Sprung King Size Mattress

    £549.95

    Highgrove Beds 1000 pocket spring king size mattress. Deep, sumptuous, pocket sprung mattress with a luxurious soft knitted cover.Layers of wool, silk, cashmere and cotton create a dreamy sleep surface. Extra supportive side springs and a full five year warranty add support and peace of mind. Gentle medium support level. FREE Express Delivery. See More
    availability
    6.5
  22. Highgrove Clifton Winter Summer Mattress

    Highgrove Clifton Memory King Size Mattress

    £349.95

    Fantastic Winter/Summer king size mattress.Supportive open coil springs. One side has comforting, warming memory foam with a stretch fabric cover. The second side has cooler polyester fillings and a damask finish. Excellent design to keep you warm in Winter and cool in Summer. Divan base available in 24 colours with all storage options and 16 co-ordinating headboard designs. See More
    availability
    7.5
  23. Mayfield Ortho Mattress

    Highgrove Mayfield Ortho 2000 King Size Mattress

    £699.95

    Superior 2000 pocket ortho king size mattress. Packed full with layers of wool, silk, cashmere and cotton all firmly hand tufted together to create a really substantial pocket sprung mattress. Superb if you like a firm mattress. FREE Express Delivery. See More
    availability
    9
  24. Highgrove Radiant 1500 Mattress

    Highgrove Radiant 1500 Hybrid King Size Mattress

    £749.95

    Luxury Highgrove hybrid king size mattress. 1500 pocket springs support a deep layer of soft memory foam for a sumptuous, body moulding feel. Reinforced edge allows the mattress to be supportive right to the edge. A bamboo infused cover ensures a cool, fresh and dry nights sleep. No turning required. FREE Express Delivery. See More
    availability
    7

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Our goal is to assist you in finding the perfect king size mattress for a peaceful night's sleep.

When looking for a mattress, everyone has different requirements. Your body shape, weight distribution, firmness preference and mattress type are all factors that determine which mattress is for you. 

Explore the collection of mattresses we have available at The Bed Warehouse Direct, and get in touch with our team on 0800 049 0800 if you have any questions about the mattresses we offer.

What is a king size mattress?

A king size mattress is a type of mattress that is larger than a standard double mattress. They are usually 5’0” wide by 6’6” long, which makes them perfect for a couple, especially if someone in the couple requires those extra few inches to fully stretch out.

In order to fit a king size bed into your bedroom, you’ll have to have plenty of space to ensure that your bed fits where you want it to go. It’s a good idea to measure the space where you’d like your bed to go before purchasing it, to avoid disappointment if your bed doesn’t fit when it arrives.

How big is a king size mattress?

A king size mattress is 5’0” (150cm) wide by 6’6” (200cm) long.

We also stock a range of king size bed frames that are designed to fit our collection of king size mattresses.

What other mattress sizes do you have available?

If you’d like to explore the other sizes of mattresses we have available, we offer a variety of different options for you to consider:

What types of king size mattresses do you stock?

We offer a wide range of king size mattresses that are crafted using a combination of traditional and modern methods, as well as automated techniques. This ensures that our king size mattresses are of high quality, and you can explore the different options we have available below:

King size open coil mattresses: These are made using individual steel coils that are connected to each other and reinforced with a thicker gauge steel for added firmness. However, it's worth noting that while some people may find these mattresses beneficial for back support, it may not be the case for everyone.

King size pocket spring mattresses: These are composed of individual steel coils that are encased in fabric. This design allows each spring to move independently, providing customised comfort and support that conforms to the sleeper's body shape.

King size memory foam mattresses: This is a great choice for those looking for a comfortable and responsive surface. These mattresses are created by bonding together various types of foam to reduce pressure points. However, one common issue with traditional memory foam mattresses is that they tend to trap heat, making it hard for some users to move around comfortably. But, the good news is that manufacturers have come up with solutions such as incorporating cooling foam or latex-based foam layers to address this issue.

King size hybrid mattresses: This is designed to give you the best of both worlds, combining the traditional benefits of spring mattresses with the modern technology of memory foam. This creates a versatile and comfortable sleeping surface that is sure to provide you with a great night's sleep. This hybrid mattress is a great option for those who want the support of a spring mattress as well as the pressure relief of a memory foam mattress

What's the best king size mattress for my sleep position?

The best king size mattress for you will depend on your preferred sleep position.

Front sleeper

If you're someone who sleeps on their front, it's crucial to choose a firm king size mattress. This is because a soft mattress can cause your hips to sink too far, resulting in lower back pain. 

It's worth noting that sleeping on your front can be a sign of a pre-existing lower back condition, so if possible, it's best to avoid this position. However, for those who can't change their sleeping position, a firm mattress is an essential choice to help alleviate any discomfort.

Back sleeper

For those who sleep on their back, a medium-firm king size mattress is the ideal choice. This type of mattress should be firm enough to keep your hips in alignment, but also soft enough to adapt to the curve of your lower back, providing a perfect balance of support and comfort. 

A medium-firm mattress will help keep your spine in a neutral position and reduce any pressure points, making for a comfortable and restful night's sleep.

Side sleeper

For those who sleep on their side, having a responsive mattress is essential. A mattress that allows your hips and shoulders to sink in while still providing support for your waist is ideal. 

Depending on your body shape, a soft king size mattress may be the best choice.

This type of mattress will conform to your body and provide the needed support for your hips, shoulders, and waist. It will also help to reduce pressure points, allowing for a more comfortable night's sleep.

How much does a king size mattress cost?

When it comes to purchasing a new king size mattress, it's important to remember that investing in a quality product can have long-term benefits for both your physical and mental health. 

Assuming a new king size mattress lasts around 8 years with 2 people sleeping on it, even a higher range king size mattress from £500 would be costing each sleeper from as little as 9 pence per night.

A middle range king size mattress costing between £200 and £500 would work out at between 3.5 pence and 8.5 pence per sleeper per night.

If you were to buy a cheap king size mattress for less than £200 that could be as low as just 2 pence per night per person.

How do I choose the right king size mattress for me?

It's crucial to figure out what level of comfort you're after when looking to purchase a new king size mattress. 

Take a moment to think about what you liked about your old mattress when it was new, and what you wish you could change about it now. It can also be helpful to think about a time when you slept exceptionally well on holiday and try to replicate that mattress's feel.

It's also important to consider how your own body shape and weight will affect your mattress choice. Keep in mind that product descriptions and firmness guides are based on average body types, so a mattress that feels comfortable for one person may not feel the same for someone else with a different body shape or weight.

Don't hesitate to take a look at the resources available on our website such as our FAQ videos, Bed Buyer's Guide, and our blog. We've tried to provide as much information as possible to help you make the important decision of choosing the best mattress for you.

If you're still unsure about which mattress to purchase, our expert team is here to assist you. You can give us a call at 0800 049 0800 during business hours (9:30am - 5:00pm) or drop us an email, and we'll get back to you. Our advisors have extensive experience and will provide friendly, honest, and highly-skilled advice without any pressure to buy.

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