Sealy King mattresses

We have a King size mattress to suit you

Looking for the perfect king mattress? Experience restful nights with our premium collection of soft, medium, and firm king beds from Sealy Australia. A king mattress, measuring 183cm x 203cm, provides generous space and exceptional comfort, making it ideal for couples seeking undisturbed sleep.

Sealy King MATTRESSES

Shop by range

Each Sealy range features a unique combination of our patented technologies, comfort choice and materials that are sourced and made right here in Australia. Individual model features differ between Sealy bedding retailers.

Sealy Crown Jewel Logo

We never compromise on sleep.
Neither should you.

State-of-the-art technology leaves you feeling refreshed

A sleep system designed to maintain your body’s natural alignment

Support that stands the test of time

Finest materials

2 stage support

Single stage support

Sealy Crown Jewel Logo

We never compromise on sleep. Neither should you.

State-of-the-art technology leaves you feeling refreshed

Finest materials

A sleep system designed to maintain your body’s natural alignment

Support that stands the test of time

2 stage support

Single stage support

Understanding
sleeping positions

The comfort of your mattress may have a direct impact on the quality of your rest. Depending on your typical sleep position, you may be suited to softer layers rather than a firm option. Explore our options from ultra plush to ultra firm, and see how they might suit you.

Sealy KING MATTRESSES

Shop by comfort

Sealy Posturepedic mattresses have a wide variety of comfort layers and technology. Our base comfort options range from Ultra Firm to Ultra Plush to relieve pressure and cushion the body. No matter which Posturepedic model you prefer, we have a comfort level to suit you.

Soft comfort

Deeply cushioning and popular amongst side sleepers, these options often have a pillowtop

Medium comfort

Offers the best of both worlds between strong cushioning and equally strong support

Firm comfort

Firmer mattresses usually have a tight top, and are ideal for back or front sleepers

Ultra plush

Plush

Medium

Ultra Firm

Firm

Soft comfort

Deeply cushioning and popular amongst side sleepers, these options often have a pillowtop.

Ultra plush

Plush

Medium comfort

Offers the best of both worlds between strong cushioning and equally strong support.

Medium

Firm comfort

Firmer mattresses usually have a tight top, and are ideal for back or front sleepers.

Ultra firm

Firm

Mattress selector

Not sure what mattress is right for you?

Discover your perfect mattress by using our mattress selector tool.

Simply answer a few questions and we’ll recommend the right mattress based on your unique sleep profile. We will email you your customised results so you can take them in-store to a Sealy retailer near you.

Model sleeps comfortably on Sealy mattress with flowers beside bed

King mattress size FAQs

How big is a king size bed Australia?

In Australia, a King size bed is 203cm long and 183.5cm wide. The height of the mattress can vary depending on the comfort level (plush, medium, firm). If you have a bed frame, this should be taken into account when measuring required space.

What is king size in CM?

In Australia, a King size mattress is 203cm long and 183.5cm wide. This is equivalent to 72 x 80 inches.

Are there 2 sizes of king mattresses?

In Australia, there is a King Mattress and a Super King Mattress.  The primary difference between the King and Super King is the extra 19.5cm in width, meaning more space and comfort to spread out.

What size bed do most couples sleep on?

In Australia, most couples choose to sleep on a Queen or King size bed. Which size is right for you depends on the size of your bedroom, how much space you and your partner prefer, and whether you will need to consider upgrading or downgrading in the future.

Is it worth upgrading from queen to king bed?

A King bed allows for additional space to stretch out and get comfortable. With more room to move, you may experience less disturbance from your partner shifting throughout the night. It is important to consider the size of your bedroom and whether a King will fit your space.

What Is the lifespan of a king mattress?

A Sealy king mattress typically lasts around 10 years. However, this is a general guideline. With appropriate care and maintenance, a quality mattress may be enjoyed for decades. As long as your mattress offers the right comfort, support and hygiene, then there is no requirement to replace it.

How much does a king size mattress weigh?

It varies between 46kg – 65kg. The exact weight of a mattress will depend on the specific range and comfort selections.

Can a King size bed fit 2 adults?

Yes, a king mattress can comfortably fit 2 adults. The king bed is a premium size, it is spacious and offers plenty of room to stretch out or find comfort even if children or pets jump into the bed.

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