Menu
Search
Advanced Search
Account
Basket
Sale Now On

Free UK Delivery*

Next day + timed slots

Klarna logo

Pay In 3 With Klarna

Old Bed & Mattress

Removal & Recycle service

Menu

King Size Hypoallergenic & Dust Mite Resistant Silentnight

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


Silentnight is the biggest and most well known bed brand in the UK. The famous pajama wearing hippo and duck characters used by the brand was developed in 1984 to demonstrate how their mattresses can comfortably accommodate different weights and sizes with its advanced miracoil spring system.

Silentnight beds cater to a variety of needs, whether you're looking for extra storage, orthopaedic support, or eco-friendly materials.

Filter
Filter
Clear All
Show
Applied Filters
  1. Category
    Mattresses
  2. Silentnight Ranges
    Ultra Gel
  3. Size
    King Size
  4. Features
    Hypoallergenic & Dust Mite Resistant
Silentnight Ranges

  1. Air Mesh

    3 items

  2. Ultra Gel

    3 items

  3. Breathe

    4 items
Price
Size

  1. Single

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

    3 items

  2. Small Double

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

    3 items

  3. Double

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

    3 items

  4. King Size

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

    3 items

  5. Super King

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

    3 items
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 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.

  3. Miracoil Springs

    Miracoil springs provide targeted support and enhanced comfort for sleepers.
Features

  1. Keeps You Cool

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

  2. Hypoallergenic & Dust Mite Resistant

    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. Keeps You Warm

    Ideal for people who feel cold and prefer a warmer sleeping environment.

  9. No Roll-Together

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

  10. 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.

  11. Lightweight & Easy to Move

    A lighter mattress, making it easy to move or transport.

  12. Good Airflow & Breathability

    The open coil structure allows air to circulate, helping to prevent overheating.

  13. 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.

  14. Excellent Temperature Regulation

    Absorbs and wicks away moisture, preventing overheating, helping to keep you cool in summer and warm in winter.
Contact us
My Wish List
Last Added Items
  1. Add to Cart
    Remove This Item
Go to Wish List
You have no items in your wish list.
Filter
Filter
Clear All
Show
View as Grid List

3 Results

Product Name

Price low-high

Product Name Price low-high
Set Descending Direction
  1. Silentnight UltraGel Miracoil Pillowtop Mattress
    Add to Wish List Add to Compare
    tension

    Med/Firm

    Firmness

    Med/Firm · 4 / 5

    1

    2

    3

    4

    5

    Mattress Type:

    Memory Gel

    Memory Gel

    Miracoil Springs

    Miracoil Springs

    Silentnight UltraGel Miracoil Pillowtop Mattress

    Be the first to review this product
    Mattress Core
    Memory Gel
    Miracoil Springs
    Mattress Depth
    30 cm depth
    Sale From
    £395.10
    £434.61
    Was £434.61
    RRP £639.00
    free-delivery

    Free Delivery available within 7 - 14 Days

    brand
  2. Silentnight UltraGel Cool-to-touch 2000 Pocket Mattress
    Add to Wish List Add to Compare
    tension

    Soft/Med

    Firmness

    Soft/Med · 2 / 5

    1

    2

    3

    4

    5

    Mattress Type:

    Pocket Springs

    2000 Pocket Springs

    Memory Gel

    Memory Gel

    Silentnight UltraGel Cool-to-touch 2000 Pocket Mattress

    Rating:
    98%
    4.9 · 9  reviews
    Mattress Core
    2000 Pocket Springs
    Memory Gel
    Mattress Depth
    33 cm depth
    Sale From
    £512.10
    £563.31
    Was £563.31
    RRP £729.00
    free-delivery

    Free Delivery available within 7 - 14 Days

    brand
  3. Silentnight UltraGel Cool-to-touch 3000 Mattress
    Add to Wish List Add to Compare
    tension

    Medium

    Firmness

    Medium · 3 / 5

    1

    2

    3

    4

    5

    Mattress Type:

    Pocket Springs

    3000 Pocket Springs

    Memory Gel

    Memory Gel

    Silentnight UltraGel Cool-to-touch 3000 Mattress

    Rating:
    98%
    4.9 · 9  reviews
    Mattress Core
    3000 Pocket Springs
    Memory Gel
    Mattress Depth
    37 cm depth
    Sale From
    £629.10
    £692.01
    Was £692.01
    RRP £819.00
    free-delivery

    Free Delivery available within 7 - 14 Days

    brand

3 Results

  • 1
{{widget type="Magento\Cms\Block\Widget\Block" template="widget/static_block/default.phtml" block_id="85"}}

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.

Question not here?

Our customer services team are here to help and answer any questions. Get in touch and we'll be happy to help.

Get in touch
What's this? Check "Remember Me" to access your shopping cart on this computer even if you are not signed in.