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King Size Cooling Memory Foam No Roll-Together Mattresses

Memory foam has the ability to conform to the shape of the body, allowing for even weight distribution and pressure relief. Memory Foam will return to its original shape once pressure is removed. The makeup of memory foam mattresses proves popular with people who suffer from joint pain, back pain.


Each spring moves independently, preventing sagging or dips over time.


Shop mattresses from big brands including Sleepeezee, Silentnight and Giltedge. Choose from pocket spring, memory foam, hybrid and natural fillings options, available in every UK size. Selected mattresses include a 60-night trial, with free next-day delivery on orders over £299 and removal of your old mattress if required.

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  1. Size
    King Size
  2. Benefits
    Cooling
  3. Mattress Core
    Memory Foam
  4. Features
    No Roll-Together
Price
Size

  1. Small Single

    2'6" x 6'3" | 75cm x 190cm

    1item

  2. Single

    3' x 6'3" | 90cm x 190cm

    8items

  3. Small Double

    4' x 6'3" | 120cm x 190cm

    8items

  4. Double

    4'6" x 6'3" | 135cm x 190cm

    8items

  5. King Size

    5' x 6'6" | 150cm x 200cm

    8items

  6. Super King

    6' x 6'6" | 180cm x 200cm

    8items

  7. Zip Link Super King

    6' x 6'6" | 180cm x 200cm

    2items
Fast Delivery

  1. Fast Delivery

    Next day delivery or later. Choose a delivery date at checkout
Promotions

  1. On Sale

    3items
Benefits

  1. Pressure & Pain Relief

    16items

  2. No Partner Disturbance

    15items

  3. Cooling

    8items

  4. Value for Money

    7items

  5. Award Winning

    1item

  6. Heavy Duty

    1item
Comfort Rating
  1. tension-image

    Soft/Med

    Balances comfort and support, providing a soft feel Ideal for sleepers with a lighter build who may find a medium mattress too firm and want a little extra give.

  2. tension-image

    Medium

    Often considered a universal comfort option, suitable for most people regardless of weight, sleeping position or preference.
  3. tension-image

    Med/Firm

    Provides a slight firmness, perfect if you want the extra support but still like your bed to feel cosy and soft.
Mattress Core

  1. Pocket Springs

    Pocket springs work independently to each other, providing more support and reducing motion transfer.

  2. Memory Foam

    Memory foam uses your body heat to soften and mould to your shape.

  3. Memory Gel

    Memory gel mattresses are designed to be breathable and moisture-wicking, similar to memory foam mattresses, but with cooling properties to help regulate temperature.

  4. Natural Fillings

    Natural fillings in mattresses are materials derived from natural sources that add comfort, support, and durability to a mattress.

  5. Latex

    Latex is commonly used in mattresses for support, comfort, and durability. One of the benefits of latex foam in mattresses is its ability to contour to the body's shape.

  6. Miracoil Springs

    Miracoil springs provide targeted support and enhanced comfort for sleepers.

  7. Comfort Layers

    A generous mix of upholstered fillings to create a luxurious comfort layer to the mattress
Features

  1. Keeps You Cool

    Helps regulate body temperature and prevents overheating by improving breathability, airflow, and heat dissipation

  2. Anti Allergy

    Resists dust mites, mold, and bacteria, Ideal for people with allergies or asthma

  3. Pillow Top Comfort

    A pillow-top mattress is a type of mattress that has an additional layer of padding sewn onto the top of the bed.

  4. Reduces Partner Disturbance

    Perfect for couples, as movement on one side won’t disturb the other.

  5. Pressure Relieving

    Pressure-relieving mattresses are designed to distribute the body's weight more evenly across the surface of the mattress, reducing pressure on specific points such as the hips, shoulders, and spine.

  6. Ideal for All Sleeping Positions

    Offers balanced support, whether you sleep on your back, side, or stomach.

  7. Higher Weight Support

    Provides strong support, durability, and pressure relief.

  8. No Roll-Together

    Each spring moves independently, preventing sagging or dips over time.

  9. Hybrid Support

    A hybrid mattress offers the best of both worlds, the pressure relief and contouring of foam with the responsiveness and support of springs.

  10. Extra Support & Spinal Alignment

    The Individual pocket springs move independently, adapting to your body's contours which creates targeted support, reducing pressure points on the back, neck, and joints.

  11. Excellent Temperature Regulation

    Absorbs and wicks away moisture, preventing overheating, helping to keep you cool in summer and warm in winter.

  12. Bamboo Infused

    A bamboo-infused mattresses are highly breathable and naturally antimicrobial which helps reduce the growth of bacteria, mold, and dust mites.
Mattress Depth

  1. 25cm-29cm

    3items

  2. 30cm Plus

    5items
Brand

  1. Silentnight

    Silentnight beds and mattresses with up to 50% off RRP

  2. Sleepeezee

    Sleepeezee beds and mattresses, including Jessica, hybrid and wool collections. Now with up to 50% Off.

  3. Giltedge Beds

    Giltedge Beds offer a range of beds, mattresses and headboards at unbeatable prices.

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8 Results

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Price low-high

Fast Delivery

Recommended Price low-high Fast Delivery
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  1. Giltedge Beds Cool Memory 1000 Mattress
    Add to Wish List Add to Compare
    tension

    Medium

    Firmness

    Medium · 3 / 5

    1

    2

    3

    4

    5

    Mattress Type:

    Pocket Springs

    1000 Pocket Springs

    Memory Foam

    Memory Foam

    Giltedge Beds Cool Memory 1000 Mattress

    Rating:
    94%
    4.7· 23  reviews
    Mattress Core
    1000 Pocket Springs
    Memory Foam
    Mattress Depth
    28 cm depth
    From
    £329.00
    RRP £519.00
    free-delivery

    Free delivery from Saturday 6th June

    brand
  2. Silentnight Memory Cool 2000 Pillow Top Mattress
    Add to Wish List Add to Compare
    tension

    Medium

    Firmness

    Medium · 3 / 5

    1

    2

    3

    4

    5

    Mattress Type:

    Pocket Springs

    2000 Pocket Springs

    Memory Foam

    Memory Foam

    Silentnight Memory Cool 2000 Pillow Top Mattress

    Be the first to review this product
    Mattress Core
    2000 Pocket Springs
    Memory Foam
    Mattress Depth
    31 cm depth
    Sale From
    £449.10
    £494.01
    Was £494.01
    RRP £639.00
    free-delivery

    Free Delivery available within 7 - 14 Days

    brand
  3. Giltedge Beds Bamboo 1500 Mattress
    Add to Wish List Add to Compare
    tension

    Medium

    Firmness

    Medium · 3 / 5

    1

    2

    3

    4

    5

    Mattress Type:

    Pocket Springs

    1500 Pocket Springs

    Memory Foam

    Memory Foam

    Giltedge Beds Bamboo 1500 Mattress

    Rating:
    97%
    4.85· 14  reviews
    Mattress Core
    1500 Pocket Springs
    Memory Foam
    Mattress Depth
    25 cm depth
    From
    £399.00
    RRP £603.00
    free-delivery

    Free delivery from Saturday 6th June

    brand
  4. Silentnight Memory Cool 1000 Mattress
    Add to Wish List Add to Compare
    tension

    Med/Firm

    Firmness

    Med/Firm · 4 / 5

    1

    2

    3

    4

    5

    Mattress Type:

    Pocket Springs

    1000 Pocket Springs

    Memory Foam

    Memory Foam

    Silentnight Memory Cool 1000 Mattress

    Be the first to review this product
    Mattress Core
    1000 Pocket Springs
    Memory Foam
    Mattress Depth
    28 cm depth
    From
    £439.00
    RRP £599.00
    free-delivery

    Free Delivery available within 7 - 14 Days

    brand
  5. Silentnight Memory Cool 3000 Box Top Mattress
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    tension

    Soft/Med

    Firmness

    Soft/Med · 2 / 5

    1

    2

    3

    4

    5

    Mattress Type:

    Pocket Springs

    3000 Pocket Springs

    Memory Foam

    Memory Foam

    Silentnight Memory Cool 3000 Box Top Mattress

    Be the first to review this product
    Mattress Core
    3000 Pocket Springs
    Memory Foam
    Mattress Depth
    37 cm depth
    Sale From
    £459.00
    £504.90
    Was £504.90
    RRP £459.00
    free-delivery

    Free Delivery available within 7 - 14 Days

    brand
  6. Sleepeezee Graphite Echo 4700 Mattress
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    tension

    Soft/Med

    Firmness

    Soft/Med · 2 / 5

    1

    2

    3

    4

    5

    Mattress Type:

    Pocket Springs

    4700 Pocket Springs

    Memory Foam

    Memory Foam

    Sleepeezee Graphite Echo 4700 Mattress

    Rating:
    96%
    4.8· 5  reviews
    Mattress Core
    4700 Pocket Springs
    Memory Foam
    Mattress Depth
    32 cm depth
    From
    £800.00
    RRP £1,199.00
    free-delivery

    Free Delivery available within 7 - 21 Days

    brand
  7. Sleepeezee Graphite Echo 3200 Mattress
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    tension

    Soft/Med

    Firmness

    Soft/Med · 2 / 5

    1

    2

    3

    4

    5

    Mattress Type:

    Pocket Springs

    3200 Pocket Springs

    Memory Foam

    Memory Foam

    Sleepeezee Graphite Echo 3200 Mattress

    Rating:
    100%
    5· 2  reviews
    Mattress Core
    3200 Pocket Springs
    Memory Foam
    Mattress Depth
    31 cm depth
    From
    £711.00
    RRP £999.00
    free-delivery

    Free Delivery available within 7 - 21 Days

    brand
  8. Giltedge Beds Crest 1000 Mattress
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    tension

    Medium

    Firmness

    Medium · 3 / 5

    1

    2

    3

    4

    5

    Mattress Type:

    Pocket Springs

    1000 Pocket Springs

    Memory Foam

    Memory Foam

    Giltedge Beds Crest 1000 Mattress

    Be the first to review this product
    Mattress Core
    1000 Pocket Springs
    Memory Foam
    Mattress Depth
    32 cm depth
    From
    £589.00
    RRP £907.00
    free-delivery

    Free delivery from Saturday 6th June

    brand

8 Results

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Mattress FAQs
Everything you need to know before you buy
What mattress firmness is right for me?
Firmness depends on your sleep position, body weight and personal preference. Side sleepers generally suit a softer feel as it cushions pressure points at the hip and shoulder. Back sleepers do best with medium to medium firm — enough support to keep the spine aligned. Front sleepers need a firmer surface to prevent the lower back dipping. Heavier sleepers tend to need a firmer mattress as they compress the layers more.
How long should a mattress last?
Most mattresses last between 7 and 10 years with proper care. Higher quality pocket sprung and latex mattresses can last 10 to 15 years. Signs it's time to replace yours include visible sagging or lumps, waking with aches and pains, or simply not sleeping as well as you used to. Rotating your mattress regularly helps extend its life significantly.
What's the difference between pocket sprung and open coil?
Open coil mattresses use a single connected wire system — less expensive but more prone to motion transfer. Pocket sprung mattresses have individual springs each sewn into their own fabric pocket, so they respond independently to movement and weight. This means better support, less partner disturbance, and a longer lifespan. Pocket sprung is generally the superior choice for most sleepers.
Is memory foam good for back pain?
Memory foam can be very effective for back pain as it contours to the body's natural curves and distributes pressure evenly. However, if you need firm spinal support, a medium-firm pocket sprung or hybrid mattress may work better. It depends on the type and cause of your back pain — our mattress quiz can help match you to the right choice for your specific needs.
Do I need a specific mattress for my bed frame?
The most important thing is getting the right size. Most mattresses work with most frames. The exception is slatted frames — if the slats are more than 7cm apart you may need a sturdier mattress or a slatted base insert. Divan beds with a platform top provide the firmest, most even support and suit any mattress type. Adjustable beds require a specially designed flexible mattress.
What does spring count actually mean?
Spring count refers to the number of individual pocket springs in a king size mattress. Higher count generally means more targeted support — but it's not the only factor in quality. A 1,000 spring mattress from a reputable brand will often outperform a cheaper 3,000 spring mattress. The gauge of the springs, the fillings above them, and overall build quality matter just as much as the count.
How do I know if my mattress is too soft or too firm?
A mattress that's too soft will cause you to sink and feel unsupported — you may wake with lower back aches or find it hard to change position. One that's too firm creates pressure points at the hips and shoulders, especially for side sleepers. Ideally your spine should be in a neutral position — not bowed downward or arched upward — when lying in your normal sleep position.
What size mattress do I need?
The right size depends on your bedroom dimensions, whether you sleep alone or with a partner, and how much space you personally need to sleep comfortably. A double (135 x 190cm) is the most popular choice for couples in smaller rooms. A king size (150 x 200cm) gives noticeably more width and length and is worth the upgrade if your room allows it. A super king (180 x 200cm) is ideal if space is no object. For a single sleeper, a small double (120 x 190cm) gives room to stretch without taking up too much floor space.
What's the best mattress for couples?
The ideal couples mattress minimises motion transfer so neither partner disturbs the other. Pocket sprung mattresses with a high spring count (1,500+) are excellent for this as each spring reacts independently. Memory foam and hybrid mattresses also absorb movement well. If you and your partner prefer very different firmness levels, a zip and link mattress lets you join two mattresses together — each person gets their preferred feel.
How do I care for and maintain my mattress?
Rotate your mattress 180 degrees every 3 months for the first year, then every 6 months after (unless it's a no-turn model). Use a good quality mattress protector to guard against moisture and staining. Vacuum the surface regularly to remove dust. Allow your mattress to air periodically — pull back the covers for 20 minutes each morning before making the bed.

What is a king size?

A king-size provides more width than a standard double, offering additional comfort for couples who need more room to sleep comfortably.

UK King Size Dimensions

  • Width: 150 cm (5FT)
  • Length: 200 cm (6FT6)

A king-size is a popular choice for those who want more sleeping space than a standard double but may not have room for a super king. It balances space, comfort, and suitability for various bedroom sizes.

What are the benefits of a king size?

A king-size offers several benefits, particularly for those who value space and comfort in their sleeping arrangements. Here are some of the main advantages:

Benefits of a Kingsize

1. Ample Space:

  • A king-size provides plenty of room for couples to sleep comfortably without disturbing each other. This is especially beneficial for those who are restless sleepers or have different sleep patterns.

2. Comfort:

  • The larger sleeping area can contribute to a better night's sleep, as individuals can stretch out and move around freely.
  • Ideal for taller individuals who require more legroom.

3. Family-Friendly:

  • Perfect for families with children or pets who like to join in bed. The extra space accommodates everyone without feeling cramped.
  • Useful for parents who co-sleep with young children or need space for kids who occasionally join them during the night.

4. Aesthetics and Luxury:

  • A king-size can make a statement in the bedroom, adding a touch of luxury and elegance.
  • It can become the focal point of the room, enhancing the overall design and atmosphere.

5. Health Benefits:

  • Reduces disturbances from partner movements during the night, leading to improved sleep quality.
  • Provides more options for comfortable sleeping positions, potentially reducing back and joint pain.

6. Versatility:

  • More flexibility in sleeping arrangements, such as adding extra pillows or sleeping diagonally.
  • Can accommodate a variety of activities beyond sleeping, such as reading, watching TV, or working on a laptop, with plenty of room for pillows and blankets.

7. Resale Value:

  • Investing in a high-quality king-size can potentially increase the resale value of your bedroom set if you ever decide to sell it.

8. Shared Bedtime:

  • Provides space for couples to engage in activities together, such as watching movies or reading, without feeling cramped.

Overall, a king-size is an excellent choice for those who prioritize comfort, space, and luxury in their sleeping environment.

Who should buy a king size?

A king-size is a great investment for anyone who values space and comfort in their sleeping arrangements. Here are some specific situations and types of individuals who might benefit most from purchasing a king-size:

1. Couples:

  • Couples who prefer more personal space while sleeping can greatly benefit from the extra width of a king-size,
  • Those who experience sleep disturbances from their partner’s movements will appreciate the reduced motion transfer in a king-size.

2. Taller Individuals:

  • People who are taller than average may find that the additional length of a king-size offers more legroom and comfort compared to smaller sizes.

3. Families with Children or Pets:

  • Families who co-sleep with young children or share with pets will appreciate the extra space a king-size provides, allowing everyone to sleep comfortably without feeling crowded
  • Parents who occasionally have their kids join them for nighttime comfort or morning cuddles will find the space accommodating.

4. Individuals with Health Concerns:

  • People who suffer from back or joint pain may benefit from the ability to spread out and change positions easily, which can help reduce pressure points and improve sleep quality.
  • Those who require additional pillows or sleep aids for conditions such as sleep apnea may find a king-size more accommodating.

5. People Who Enjoy a Luxurious Sleep Environment:

  • Individuals who prioritize luxury and aesthetics in their bedroom will appreciate the king-size's ability to serve as a statement piece, enhancing the room's overall design and atmosphere.
  • Those who enjoy a hotel-like sleeping experience at home will find the king-size’s spaciousness appealing.

6. Active Sleepers:

  • People who tend to move around a lot during the night will appreciate the extra space to stretch out and shift positions without disturbing a partner.

7. Homeowners with Large Bedrooms:

  • Those who have a large master bedroom will find that a king-size fits proportionately, providing ample space for the bed and other furniture while maintaining a balanced aesthetic.

Conclusion

Overall, a king-size is ideal for couples, families, or individuals who want more space and comfort in their sleeping arrangements. It provides an excellent balance of luxury and functionality, making it a worthwhile investment for many people.

Are there any different references used for a king size?

Yes, the term "king-size" can have different meanings depending on the region and specific variations. Here are the different references and types of king-size commonly found:

Variations of King-Size

1. Standard King (Eastern King)

  • Dimensions (U.S.): 76 inches wide by 80 inches long (193 cm x 203 cm)
  • Use: This is the most common king-size in the United States, providing ample width for couples who want more space than a queen-size bed.

2. California King

  • Dimensions (U.S.): 72 inches wide by 84 inches long (183 cm x 213 cm)
  • Use: Popular on the West Coast, the California King is longer but slightly narrower than a Standard King, making it ideal for taller individuals.

3. UK King

  • Dimensions (UK): 60 inches wide by 78 inches long (150 cm x 200 cm)
  • Use: The UK king-size is slightly smaller than the U.S. king, but larger than the UK double, offering more space for couples in the UK.

4. UK Super King

  • Dimensions (UK): 72 inches wide by 78 inches long (180 cm x 200 cm)
  • Use: The largest standard size in the UK, providing ample space for couples who want the ultimate in comfort.

5. Split King

  • Dimensions: Typically the same as a Standard King but divided into two twin XL mattresses (each 38 inches wide by 80 inches long)
  • Use: Allows for different mattress firmness or adjustable bases on each side, offering individualized comfort for couples.

6. European King

  • Dimensions (EU): 63 inches wide by 79 inches long (160 cm x 200 cm)
  • Use: Slightly wider than the UK king, the European King is common in mainland Europe and provides a comfortable option for couples.

Conclusion

When choosing a king-size, it's important to consider the specific dimensions and regional standards that apply to ensure it meets your needs and fits your space. The various king-size options provide flexibility and customization, allowing you to select the best option for your comfort and room layout.

What are the disadvantages of a king size?

While a king-size offers many benefits, such as increased space and comfort, there are also some potential disadvantages to consider:

Disadvantages of a King-Size

1. Cost:

  • Higher Initial Investment: King-size and their associated bedding, such as sheets, duvets, and mattress protectors, are typically more expensive than smaller sizes.
  • Maintenance Costs: The larger size may lead to higher costs for cleaning and replacing bedding and mattress accessories.

2. Room Size Requirements:

  • Space Constraints: A king-size requires a larger bedroom to accommodate its dimensions comfortably while leaving enough space for movement and other furniture. In smaller rooms, a king-size might make the space feel cramped.

3. Mobility and Handling:

  • Difficult to Move: King-size can be heavy and cumbersome, making them challenging to move or reposition, particularly if you are relocating or redecorating frequently.
  • Assembly: Assembly can be more complex and time-consuming compared to smaller sizes, requiring more effort to set up.

4. Cost of Accessories:

  • Bedding Costs: King-size bedding, including sheets, comforters, and mattress protectors, is often more expensive and may require special sizes or custom options.
  • Storage: Larger bedding and accessories may require more storage space when not in use.

5. Room Layout:

  • Limited Flexibility: In smaller rooms, a king-size can limit your options for arranging other furniture and might restrict the flow of movement within the room.
  • Visual Balance: In a small room, a king-size might dominate the space, affecting the overall aesthetics and balance of the room.

6. Heat Retention:

  • Warmth: Larger sizes may retain more heat, which can be a disadvantage in warmer climates or for individuals who prefer a cooler sleeping environment. However, this can also be mitigated with appropriate bedding.

7. Comfort and Use:

  • Space vs. Intimacy: While the extra space can be comfortable, some people may prefer a smaller size for a cozier or more intimate feel, especially if they like to be close to their partner during sleep.

8. Maintenance:

  • Mattress Maintenance: A larger size can be harder to clean and maintain, especially if it becomes stained or needs to be rotated or flipped regularly.

Conclusion

A king-size provides substantial benefits in terms of space and comfort, but these advantages come with some trade-offs, including higher costs, space requirements, and practical considerations for handling and maintenance. Assessing these potential disadvantages in relation to your specific needs and room size can help determine whether a king-size is the right choice for you.

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