Sealy Posturepedic Crown Jewel

Are you deliberating between a King mattress or Queen mattress? The decision to purchase a larger bed requires careful consideration of room size, future needs and cost. We discuss when it might be ideal for you to buy a King bed, including King size bed dimensions and bed base options.

A popular choice for Australians

We collect a wide array of responses from our online Mattress Selector tool every year. Designed to help you find your perfect Sealy mattress, the form asks about your ideal comfort level and preferred size.

In 2020, over 46% of respondents said they were looking for a King size bed, while 40% selected Queen. These were by far the most popular choices, so how do you decide between the two? 

Lifestyle and future needs

Due to its width and additional space, a King size bed is typically large enough to accommodate a couple with plenty of room to stretch out and sleep soundly. They are also popular amongst those with growing families, as a King size offers more space for young ones to join you.

Minimised partner disturbance promotes deeper, more refreshing sleep. Shift workers and restless sleepers often prefer a King mattress for this reason. 

Family in bed

King size bed dimensions

The dimensions of a King size bed are 1835 mm wide and 2030 mm long. This is the same length as a Queen mattress, but offers an additional 310 mm in width. A Super King is wider again, over 500 mm wider than a Queen. This is the largest mattress size available, and offers the most luxurious Sealy Posturepedic sleeping experience.

Mattress Size (mm) Size (in)
DOUBLE
1385 × 1900 mm
54 × 74 ″
QUEEN
1525 × 2030 mm
60 × 80 ″
KING
1835 × 2030 mm
72 × 80 ″
SUPER KING
2030 × 2030 mm
80 × 80 ″

Comparing King size bed dimensions to other popular choices

fitting a king size bed into your room

The size you choose is largely dependent on the space available in your bedroom. Aside from fitting the mattress itself, you will need to ensure you can walk around the sides of your bed frame, leaving enough room to regularly rotate your mattress without hitting any walls.

We generally recommend a minimum clearance of 75–90 cm on all sides, allowing room to open any nearby doors or drawers. Please add this on to the King size bed dimensions when calculating whether this size is right for your space.

King size bed dimensions

Which Sealy ranges come in a king or super king?

We offer a King size in all of our models and price ranges, so that you can find a King size bed that suits you perfectly.

Super King size King size

Match it with a King bed base

A King size mattress sits on two separate bases, otherwise known as a Split King.  This makes the bed easier to move, and also minimises disturbance caused by movement across the bed.

Sealy split king bed base

We have a range of King bed bases to support your Sealy Posturepedic mattress.

  • Our Designer bases complete an ensemble, designed to match your home with a selection of high-quality fabrics.
  • Adjustable base models offer comfort and recovery with various elevation settings.
  • SpaceSaver bases allow you to customise drawer storage options to your requirements.

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.

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.