King Mattress: Ergoflex™ 5G Memory Foam Mattress

Our King Ergoflex™ 5G Memory Foam Mattress is a popular choice for many Australians giving them their most comfortable and supportive night’s sleep.

Voted 5-Stars in Australia for over 10 years in a row, our memory foam mattress consists of premium materials that work in harmony, combining to create the most supportive, comfortable and pressure-relieving mattress.

As the only mattress in-a-box brand that has been in business longer than the warranty period, when choosing your king mattress, you can’t go past our
Ergoflex™ 5G Memory Foam Mattress.

Why choose a king mattress?

A king size mattress is the most luxurious mattress of all. With a king mattress you can really spread out and relax after a long tiring day and get the sleep you deserve. No more partner disturbance or cramped feelings.

Whether you are buying a new bed to update your master bedroom, decorate your new home or give your guests the most comfortable sleep possible, the deluxe king mattress is ideal for you.

Benefits of our king memory foam mattress

Our king memory foam mattress offers supportive, pressure-relieving comfort from head-to-toe. When it comes to your sleep, don’t compromise on quality. As the most used piece of furniture in your home, experience the difference of a good quality mattress.

Our memory foam mattress has been meticulously designed to be the best. Some benefits of our king mattress include:

Our memory foam mattress is designed with a TENCEL® outer cover that provides a luxurious, natural and breathable surface, while the micro-fine inner cover encases and protects the entire mattress core.
Is ideal to help with back aches or pain. Our memory foam mattress offers pressure-relieving support and contours to the exact shape of your body to deliver instant and unrivalled comfort that lasts the entire night.
Is ideal for asthma and allergy sufferers as it is hypo-allergenic and anti-microbial for dust mite and allergen resistance.
We offer a 30-day trial so if you don’t love it, you can send it back. We're confident that you'll love your Ergoflex™ mattress, but if you don't we'll pick it up free of charge.

King size mattress dimensions

Our biggest mattress, the king single mattress is sized at: 183cm x 203cm x 23cm.

Not quite right? Our range of memory foam mattresses come in multiple sizes to suit you best. Choose from a;

Our King Memory Foam Mattress Sets

Get the complete king memory foam mattress set and purchase one of our bundles. We offer two bundles:

Complete Mattress Bundle: This set comes with our award-winning king Ergoflex 5G Memory Foam Mattress, two HD memory foam pillows and the waterproof and breathable Ergoflex-Tundra® protector.
Bed Bundles: This set includes our award-winning king Ergoflex 5G Memory Foam Mattress and our elegantly designed, and endlessly customisable premium Bed Base.

Experience the Ergoflex™ difference and optimise your sleep environment with our king memory foam mattress sets. With these products coupled together, you'll get your best night’s sleep yet- no more tossing and turning!

Get the best king size memory foam mattress-in-a-box brand

We are the original mattress-in-a-box brand and the ONLY mattress-in-a-box brand that has been trading longer than our 10-year warranty period. Thanks to this, we can prove to you that our customers have continued to love us night after night so you can be sure you are getting the best king size mattress-in-a-box.

Not yet convinced? Read our customer reviews here.

Purchase your king memory foam mattress online today!

Want to purchase your king memory foam mattress today? Congratulations! You are making the best investment you can into improving your sleep.

To make it easy for our customers, we make our ordering process simple so you can get the original mattress-in-a-box delivered straight to your door and for the vast majority of customers we offer fast, next-day delivery.

Purchase our king memory foam mattress online today!