King Mattresses

Sleep Big and Dream Better with King Mattresses

There’s nothing like stretching out on a king bed mattress that gives you room to move and comfort to match. At Amart, you’ll find the perfect mattress designed for big sleep and everyday value. From plush to firm, our collection brings spacious luxury to homes across Australia, so every night feels like the best one yet!

How big is a king-size mattress?

The standard king mattress size in Australian homes measures about 183cm wide and 203cm long. That’s plenty of room to stretch, roll, or share without feeling cramped.

They’re a great fit for couples who like extra sleeping space or parents who get the occasional visit from kids or pets. This size also suits large bedrooms, giving your space a balanced and comfortable layout that still feels open.

Is the upgrade from queen to king size worth it?

Upgrading from a queen mattress to a king adds around 30cm in width, changing a 153cm x 203cm queen size into a generous 183cm x 203cm layout. That extra width creates noticeable comfort for couples who like space to move freely.

It also helps minimise partner disturbance, giving you both a better chance at a good night’s sleep. For families or anyone who values room to relax, the king size is a clear step up in comfort.

Choosing between a king, super king, and a king single mattress

If extra space sounds tempting, it’s worth comparing a king, super king, and king single mattress. A super king mattress measures around 203cm x 203cm, perfect for couples who love a wider sleep experience. A king single mattress offers more room than a standard single bed, making it ideal for growing kids or solo sleepers who enjoy a little extra comfort.

Best king mattresses for every sleep preference

After deciding on the right mattress size, comfort becomes the real focus. The material you choose shapes your entire sleep experience, from support to temperature and how your body feels in the morning.

Take a look at what sets each type apart:

• Memory foam mattress: Moulds to your body and contours for pressure relief, ideal for anyone who wants a softer, supportive feel.
• Hybrid mattress: Combines foam comfort with pocket spring support to reduce partner disturbance and add gentle bounce.
• Innerspring mattress: Uses durable coils for firm support and airflow, keeping your sleep experience cool and consistent.

Can your bedroom handle a king mattress?

King size bed setups can completely change how your room feels, so space planning matters. Start by measuring the room and checking how your bed frame and bedroom furniture fit together. If you’re short on floor area, try a sleek bed base or smarter storage to create extra space. With the right setup, even compact rooms can feel open and inviting.

How much does a king mattress weigh?

King mattresses usually weigh between 40kg and 60kg, depending on their materials and construction. That’s almost twice as heavy as a double mattress, so planning the setup makes things easier.

When your new mattress arrives, have a clear path ready or an extra set of hands to help move it. Proper placement from the start keeps your bed feeling fresh and supportive for longer.

What is the best firmness level for a king?

Your sleeping style, weight, and personal comfort preference are the most important factors when selecting the firmness of your king mattress. Since firmness is subjective, what feels supportive to one person might feel soft to another.

Choosing the right feel helps keep your spine straight, which is why we offer a full range of comfort levels.

• Soft: This is the best choice for side sleepers, as it allows your hips and shoulders to sink in for better alignment and pressure point cushioning.
• Medium-firm: This is considered the ideal blend of comfort and support for most back sleepers and couples who have different sleeping style preferences.
• Firm mattress: We recommend a firm mattress for stomach sleepers and individuals with a heavier body type to prevent the mid-section from sinking.

The best way to know what works for you is to visit us in-store to try our high-quality options in person.

How much should you spend on a king mattress?

Big comfort doesn’t have to mean a big price tag. At Amart, our mattress range starts from under $500 and extends to premium designs above $5000, giving you plenty of choice for your comfort and budget. Each brand offers lasting durability and quality that makes every dollar feel well spent.

Llama, Pure Form and Dream Elegance deliver everyday value, while Sealy lifts comfort with advanced materials and support. For ultimate luxury, Orthokinetic leads the way with handcrafted details and refined finishes. Plus, with interest-free payment plans available, the right mattress has never been easier to bring home.

Must-Have Add-Ons for Your King Mattress

Every king mattress deserves the right finishing touches. Start with a quality mattress protector to keep your bed fresh and comfortable for longer, then add supportive pillows, toppers, and fresh bed linen for that complete, cosy feel.

To make it even easier, you can view all our new arrivals online and browse special offers that deliver great value. Each piece comes with a trusted warranty, and if you’re unsure what to pick, our FAQs are there to guide you.

Find everything you need at Amart and make every night feel just right.