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We spend a third of our lives asleep, or at least attempting to fall asleep.
According to research, more than 40% of the population regularly experiences inadequate sleep.1 Fortunately, one of the simplest solutions for a good night's sleep is a comfortable mattress.2
Unfortunately, buying a mattress can be overwhelming. Many of us hold off on buying a new mattress because we don't want to make a mistake, don't know what firmness or material we like, or have different comfort preferences from our partners.
This is why King Living craft customisable modular mattresses. Drawing from five decades of experience in designing innovative modular sofas, our Sleep+ Mattresses adjust to suit your comfort and support needs.
After reading this article, you will know if a Sleep+ Mattress is right for you, which design will best suit your needs, and know how to customise your mattress with our collection of Comfort Layers.
The Sleep+ Difference
Before deciding which Sleep+ Mattress is right for you, it can help to understand how the King Living Collection delivers unrivalled customisation and optimal comfort and support.
Many of us are hot sleepers, increasing wakefulness and delaying the time it takes to drift off. All King Living Comfort Layers are perforated, allowing maximum airflow and breathability. A design choice that regulates the temperature of the sleep surface by drawing excess heat away from the body.
Additionally, the pocket springs are divided into soft and firm zones to intuitively respond to your body’s weight and shape to maximise pressure relief.
How you can customise your Sleep+ Mattress
Understanding how you can customise your Sleep+ Mattress will further help you decide which mattress is right for you.
Every Sleep+ Mattress is modular. But, what does this mean?
Modular mattresses are engineered with various customisable layers and segments, allowing you to tailor the support and comfort level of your mattress. The Sleep+ Mattress Collection features adjustable Comfort Layers and optional Fit Covers, which can be flipped or changed to suit your lifestyle or comfort preferences.
The three Fit Cover options are removable and interchangeable to suit the changing seasons and your preferences. Crafted from breathable fabric and engineered to regulate temperature, Fit Covers help you to stay comfortable all year around.
The AirFit® layer comes with every Sleep+ Mattress while the CoolFit® and WarmFit® Covers are optional.
Choosing the right Sleep+ Mattress
A Sleep+ Mattress is not a standard mattress, it is a superior modular sleep system customised by you, which can adapt with you for better sleep quality and personalised comfort.
As the seasons change and as we age, our comfort preferences and needs often change. With the flexibility to adjust your mattress to suit your changing needs, a Sleep+ Mattress is for life.
Let's explore each option.
Sleep+ Mattress 9008
Best for luxury seekers who desire the most indulgent comfort and superior support.
Designed to deliver optimal precision support and comfort, the Sleep+ Mattress 9008 features a dual reversible KingCell® Pocket Spring Core Base and 110-millimetre-thick Comfort Layers, the thickest in the Sleep+ Mattress Collection.
The luxurious layers of premium foam and latex deliver maximum pressure relief and provide minimal partner disturbance. With 1674 springs sequenced across the mattresses in soft and firm zones, the Spring Base encourages a neutral spine and intuitively responds to your weight and shape for maximum support and pressure relief.
With tailored Comfort Layers and optional Fit Covers and FlexMat, the Sleep+ Mattress 9008 is best for personal relaxation.
A Sleep+ Mattress 9008 is 385 millimetres (15.25") thick.
Available mattress sizes
- King
- Queen
Discover the 9008 Mattress.
Sleep+ Mattress 8000
Best for perfectly balanced comfort and support, ideal for those wanting a slightly slimmer profile than the 9008.
The Sleep+ Mattress 8000 features a 90-millimetre-thick Comfort Layer for pressure relief and minimal partner disturbance.
The reversible optimal KingCell® Pocket Spring Core Base delivers pressure relief zoning with 837 purposefully sequenced pocket spring coils across the mattress.
Offering a great level of luxury comfort and support, the Sleep+ Mattress 8000 is a more economical mattress than the Sleep+ Mattress 9008.
A great alternative for customers who don’t wish to pay as much as the premium Sleep+ Mattress 9008, the Sleep+ Mattress 8000 is customisable with Fit Covers and Comfort Layers.
A Sleep+ Mattress 8000 is 320 millimetres (12.5") thick.
Available mattress sizes and prices:
- King
- Queen
Discover the 8000 Mattress.
Sleep+ Mattress 6000
Best for sleepers who desire adaptable comfort with more size options.
The Sleep+ Mattress 6000 features a 75-millimetre-thick Comfort Layer and the standard KingCell® Pocket Spring Core Base.
While the Sleep+ Mattress 6000 is customisable with the complete collection of Fit Covers and Comfort Layers, the sleeker design is firmer than the 8000 and 9008 mattresses.
More than 800 KingCell® Pocket Coil Springs provide pressure relief zoning to create an almost 'weightless' sleeping experience. While this delivers a high level of comfort, the Sleep+ Mattress 6000 does not offer the same optimal support and comfort as the 8000 or 9008 mattresses.
Available in various mattress sizes, the Sleep+ Mattress 6000 is suitable for smaller bedrooms and for children and teenagers.
A Sleep+ Mattress 6000 is 280 millimetres (11.25") thick.
Available mattress sizes:
- King
- Queen
- Double
- King Single
Explore the Sleep+ Mattress 6000.
Sleep+ 3000 Mattress
Best for those seeking everyday comfort, including children's bedrooms and guest rooms.
Suitable for a guest bedroom, holiday home or children's room, the Sleep+ 3000 Mattress features an integrated Comfort Layer with dual comfort levels.
Crafted with gel memory foam, the reversible Comfort Layer offers medium support on one side and firm support on the other. Both sides promote maximum airflow and distribute your weight evenly across the mattress for a comfortable sleeping experience.
Unlike other mattresses in the Sleep+ Collection, you do not have the flexibility to customise or remove the Comfort Layer, this is an integrated component of the Sleep+ 3000 Mattress. Similarly, this mattress features an integrated Fit Cover, which is removable and machine washable.
The Sleep+ 3000 Mattress is not customisable with the CoolFit®, WarmFit®, AirFit® Covers. While the Sleep+ 3000 Mattress features a reversible Comfort Layer and the zoned KingCell® Pocket Coil Springs for pressure relief support and comfort, the support and level of personalised comfort is less than other designs in the Sleep+ Collection.
A Sleep+ 3000 Mattress is 250 millimetre (10") thick.
Available mattress sizes:
- King
- Queen
- Double
- King Single
Customising your Sleep+ Mattress for the perfect night's sleep
The warning signs of a bad mattress are not always obvious, but if you wake up with aches and pains, toss and turn through the night, or your mattress sags, your mattress is not performing as it should.
Investing in a quality, comfortable and supportive mattress is one of the simplest ways to promote restful sleep and improve your overall health.3
With a Sleep+ Mattress, you have complete control of how your mattress will feel and perform. Designed to deliver tailored comfort and support, you have the flexibility to effortlessly change Fit Covers, swap Comfort Layers, or adjust the firmness of your mattress core.
Now that you know what each Sleep+ Mattress offers and the customisable options, you can decide which mattress is right for you. The next step is to visit your nearest King Living Showroom to experience the different options in person.
Creating a comfortable and tranquil space where you can unwind and relax will also help improve your sleep quality. Discover more on how to do so:
- 5 tips for creating a sleep-friendly bedroom
- 8 ways to design a Feng Shui bedroom
- 15 master bedroom ideas: 2026's most desired styles
- 10 guest bedroom ideas to make visitors feel at home
If you are still unsure if a Sleep+ Mattress is right for you, you can discover more about the Sleep+ Collection or read our mattress buying guide.
ARTICLE UPDATED
14 October 2026
