Advice

June 30, 2026

By: Zara Sahota

How to Choose the Best Mattress for Better Sleep

If you’ve ever woken up feeling stiff, restless, or not quite refreshed, your mattress is usually the first place to look. Sleep is such an intimate part of your everyday life, and the surface you rest on shapes the quality of your night more than you realise. Choosing the right mattress doesn’t have to feel overwhelming - it’s about understanding how different materials, layers and comfort levels work with the way you sleep. 

Understanding What’s Inside a Mattress

When you're shopping for a new mattress, the most important thing to consider is what's happening beneath the surface. The combination of comfort layers, support systems and cooling technologies all contribute to how your mattress feels night after night. Look for: 

Memory foam and pressure-relieving comfort layers 
Memory foam gently contours to your body, helping to relieve pressure around the shoulders, hips and lower back. Additional high-density foam layers can further enhance comfort and support while reducing pressure points. 

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Pocket spring support systems 
Pocket springs work independently to respond to movement and support your body where it's needed most. This can help minimise partner disturbance while promoting a more comfortable night's sleep. 

At OZ Design, the Pure Slumber mattress collection offers two distinct support systems to suit different sleep preferences. The Pure Slumber Comfort Cloud range features a pocket coil system with foam encasement for balanced, consistent support across the mattress. For sleepers looking for more targeted support, the Pure Slumber Dream Zone range features a 5-zone foam-encased pocket coil system, designed to provide varying levels of support to different areas of the body and help encourage healthy spinal alignment throughout the night.

Cooling technologies for temperature regulation 
If you tend to sleep warm, look for mattresses with cooling features such as gel-infused foam, cooling knit fabrics or breathable quilting. These materials can help regulate temperature and create a more comfortable sleep environment throughout the year. 

These materials aren't simply added features – they directly influence how deeply you sleep, how often you move throughout the night and how supported you feel when you wake. 

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Choosing the Right Mattress Comfort Level 

Your sleep position plays a big role in choosing the right mattress:

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  • Side sleepers usually prefer something with softness around the shoulders and hips. 

  • Back sleepers tend to sleep better on balanced support that keeps the spine aligned. 

  • Stomach sleepers often need firmer surfaces to avoid sinking too deeply. 

  • Hot sleepers benefit from breathable quilting or gel layers that help regulate temperature. 

Rather than thinking about mattresses as soft vs firm, think about comfort as a spectrum that supports your natural posture. 

For those who prefer a balanced feel with consistent support across the entire mattress, the Pure Slumber Comfort Cloud range combines multiple comfort layers, memory foam, high-density gel foam and a foam-encased pocket coil support system for everyday comfort and pressure relief. 

If you're looking for more targeted support, the Pure Slumber Dream Zone range features a 5-zone pocket spring system that is designed to support different areas of the body individually. Combined with memory foam, high-density comfort layers and cooling knit fabrics, it offers enhanced support while helping to maintain natural spinal alignment throughout the night. 

Both collections include temperature-regulating materials, pressure-relieving comfort layers and a 5-year warranty, making it easier to find a mattress that suits your preferred comfort level and sleep style.

Mattress Sizes Explained: Finding the Right Fit for Your Bedroom

Choosing the best mattress isn't only about comfort and support. Selecting the right mattress size is equally important. The ideal mattress should suit your sleep style, bedroom layout and everyday lifestyle. 

Whether you're furnishing a guest room, updating a child's bedroom or creating a master retreat, understanding standard Australian mattress sizes can help you make the right choice.

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Australian Mattress Size Guide

 

Mattress Size 

Dimensions 

Best For 

Single Mattress 

92cm x 188cm 

Children, teenagers and compact bedrooms 

King Single Mattress 

107cm x 203cm 

Taller sleepers, teenagers and guest rooms 

Double Mattress 

138cm x 188cm 

Solo sleepers wanting extra space 

Queen Mattress 

153cm x 203cm 

Couples and the most popular mattress size in Australia 

King Mattress 

183cm x 203cm 

Couples wanting maximum sleeping space 

 

Single Mattress 

A single mattress is a practical choice for children's bedrooms, smaller spaces and guest rooms. Compact in size, it offers comfortable support while maximising available floor space. 

King Single Mattress 

A king single mattress provides additional width and length compared to a standard single mattress. It's ideal for growing teenagers, taller sleepers or anyone who prefers a little extra room to stretch out. 

Double Mattress 

Double mattresses are a versatile option for solo sleepers who enjoy more sleeping space. They're also well suited to guest bedrooms where flexibility is important. 

Queen Mattress 

As the most popular mattress size in Australia, a queen mattress offers an excellent balance of comfort, practicality and space. It comfortably accommodates couples while fitting well within most Australian bedrooms. 

King Mattress 

For those seeking a luxurious sleep experience, a king mattress delivers generous personal space and enhanced comfort. It's ideal for larger master bedrooms and couples who value extra room throughout the night. 

How to Create a Bedroom That Promotes Better Sleep 

 

Even the best mattress works harder when the rest of your space supports rest. Consider: 

  • Consistent airflow and temperature control 

 

Sleep is about how your whole space makes you feel, not just what you’re lying on.

Frequently Asked Questions About Mattresses 

The best mattress for side sleepers is one that provides pressure relief around the shoulders and hips while maintaining proper spinal alignment. Mattresses with contouring comfort layers, such as memory foam or supportive comfort foam, can help cushion key pressure points and create a more comfortable sleep experience. 

Most mattresses should be replaced every 7–10 years, depending on their quality, construction and level of use. Signs it may be time for a new mattress include visible sagging, reduced support, discomfort during sleep or regularly waking with aches and pains. Investing in a quality mattress can contribute to better sleep and long-term comfort. 

A queen mattress is the most popular choice for couples, offering a balance of comfort, space and practicality for most Australian bedrooms. For those who prefer additional personal space or have a larger bedroom, a king mattress can provide a more spacious and luxurious sleeping environment. 

A king mattress can be well worth the investment if you have the available bedroom space and value extra room while sleeping. It provides more personal space for couples, can reduce sleep disturbances caused by movement, and creates a luxurious bedroom feel that supports restful sleep. 

The primary difference between a queen mattress and a king mattress is width. A standard queen mattress measures approximately 153cm x 203cm, while a king mattress measures approximately 183cm x 203cm. Both offer the same length, but a king mattress provides an additional 30cm of width, making it ideal for couples who prefer more room to stretch out. 

The best mattress firmness depends on your sleeping position and personal preference. Side sleepers often prefer a softer feel that cushions pressure points, while back and stomach sleepers typically benefit from a medium to firmer mattress that supports healthy spinal alignment. The ideal mattress should feel supportive while remaining comfortable throughout the night. 

Yes. A supportive mattress can play a significant role in improving sleep quality by helping to maintain proper body alignment, reducing pressure points and minimising movement throughout the night. Choosing a mattress that suits your sleep style can help you wake feeling more refreshed and rested. 

When choosing a mattress, consider your preferred sleep position, comfort preferences, bedroom size and whether you'll be sharing the bed with a partner. It's also important to select the right mattress size and pair it with a supportive bed frame to create a comfortable and functional sleep sanctuary.