If your mattress is too firm, your shoulders and hips will ache; too soft, and your spine will sag like a hammock. To help you wake up pain-free without emptying your savings, we’ve put together the ultimate guide to the best mattresses for side sleepers in Australia under $700.

1. Why Side Sleepers Need a Specialised Mattress

Side sleeping is the most common position in Australia, and for good reason—it can help with digestion and reduce snoring. However, it puts a significant amount of concentrated pressure on two points: the shoulders and the hips.

When you sleep on your side, your body weight isn't distributed evenly. Instead, it’s concentrated on the protruding parts of your frame. A standard "one-size-fits-all" mattress often fails side sleepers in two ways:

• Pressure Point Pain: A mattress that is too firm pushes back against the shoulder and hip joints, leading to "pins and needles," numbness, or chronic morning soreness.

• Misalignment: A mattress that lacks support allows the heavy midsection to sink too deep, causing the spine to curve unnaturally.

A specialised mattress for side sleepers is designed to offer "zoned" relief—yielding where you are wide (shoulders) and supporting where you are narrow (waist), ensuring your spine remains a straight, horizontal line from your neck to your tailbone.

2. Key Features to Look for in a Side-Sleeper Mattress

When shopping for a budget-friendly mattress under $700, you have to be a savvy buyer. Don't just look at the price tag; look for these technical specifications:

Medium-Firm Feel 

On a scale of 1 to 10, side sleepers generally thrive on a 5 to 6.5. This provides enough "sink" to cushion the joints while maintaining enough "push-back" to keep you from feeling stuck in the bed.

Contouring Materials

Look for Memory Foam or Gel-Infused Foam. These materials are thermo-reactive, meaning they soften with your body heat to mold exactly to your curves. For Australians, gel-infused foam is a 2026 essential to help dissipate heat during those humid summer nights.

Transition Layers

A quality mattress under $700 should have more than just a cover and a base. Look for a "transition layer" between the soft top foam and the firm support core. This prevents you from "bottoming out" and hitting the hard support layer with your hip bone.

Edge Support

Budget mattresses often skimp on the perimeter. For side sleepers who tend to migrate toward the edge of the bed, reinforced edges are vital to prevent that "rolling off" sensation.

3. Newentor Hybrid Mattress: A Top 2026 Pick for Australians

If you are looking for a mattress that hits the sweet spot of the $700 budget while offering premium features, the Newentor Hybrid Mattress has become a standout choice in 2026.

Check out Newentor mattresses series here for more selections.

Why it works for Side Sleepers:

The Newentor Hybrid uses a sophisticated combination of individually wrapped pocket springs and multi-layered memory foam.

• Reinforced Edge Support: One of the most common complaints with budget-friendly mattresses is the "roll-off" sensation. Newentor addresses this with high-tensile springs and high-density foam casing around the perimeter.

For side sleepers—who often migrate toward the edge of the bed to find more space—this provides a stable, flat sleeping surface that prevents the mattress from sagging or collapsing when you get close to the side.

• 7-Zone Support System: The pocket spring base is divided into seven sections. The springs under your shoulders are slightly more flexible, while the springs under your lumbar region are firmer. This actively promotes neutral spinal alignment.

• Breathability: The hybrid design allows for significantly more airflow than a pure foam mattress, which is crucial for the Australian climate.

4. Save Your Old Mattress with a Mattress Topper

Sometimes, a new mattress isn't in the cards, or perhaps your current mattress is still in good condition but just feels too firm. This is where a Mattress Topper becomes a side sleeper's best friend.

A high-quality 5cm to 10cm topper can breathe new life into an aging bed for a fraction of the cost (usually between $150 and $300).

Choosing a Topper for Side Sleeping:

• Memory Foam Toppers: Best for deep contouring. If you wake up with shoulder pain, a 7cm memory foam topper can provide the "cloud" feel your joints need.

• Latex Toppers: Better for those who want pressure relief but dislike the "sinking" feeling of memory foam. Latex is more responsive and bouncy.

• Zoned Toppers: Some modern toppers in 2026 now feature different densities of foam in a single slab, mimicking the zoned support of high-end mattresses.

Note: A topper cannot fix a sagging mattress. If your bed has a "valley" in the middle, a topper will simply follow that curve. Toppers are for fixing firmness issues, not structural issues.

For those looking to achieve that premium side-sleeper comfort without the premium price tag, the Newentor Memory Foam Mattress Toppers have emerged as a top-tier recommendation in 2026. 

If your current mattress is structurally sound but simply too punishing on your pressure points, this topper serves as the perfect "bridge" to a better night's sleep.

• Dual-Layer Comfort System: Unlike basic foam slabs, the Newentor topper often features a multi-layer design. One side provides a plush, "cloud-like" memory foam feel that allows your shoulder to sink in deeply, while the other side offers a slightly higher density for those who need more lumbar support.

• 7-Zone Ergonomic Cutting (Only 10cm thickness): This is the standout feature for 2026. The topper is precision-cut into seven zones with varying textures and support levels. This means it provides softer support for the head and feet, while offering firmer support for the torso—exactly what a side sleeper needs to keep the spine straight.

• Superior Breathability: One of the biggest complaints about memory foam is that it sleeps "hot." Newentor utilizes advanced gel-infused particles and an egg-crate or perforated design to promote airflow, ensuring you stay cool even during an Australian summer.

• Non-Slip Security: There is nothing more frustrating than a topper that slides around. Newentor includes robust elastic straps and a non-slip bottom surface, ensuring it stays perfectly aligned with your mattress regardless of how much you toss and turn.

Final Thoughts

In 2026, Australians no longer have to choose between their physical health and their bank balance. Side sleepers require a delicate balance of softness and support, and brands like Newentor are proving that high-end "zoned" technology can be accessible for under $700.