Best Mattress for Restless Leg Syndrome (RLS): An Australian Guide

Restless leg syndrome (RLS) is one of the most disruptive sleep conditions a person can live with — and one of the most poorly understood. The uncontrollable urge to move your legs, the tingling and crawling sensations, the way symptoms intensify the moment you lie still — RLS turns the act of trying to sleep into a fight against your own nervous system. A mattress can't fix that fight (RLS is a neurological condition; medical treatment paths exist and start with your GP), but the right mattress can meaningfully change how your sleep environment supports your symptoms when they quiet. This guide walks through what RLS actually is per Australian medical authorities, what mattress features support better sleep for RLS sufferers, when to see your GP, and which of our Koala mattresses fits best.

Restless leg syndrome (RLS), also called Willis-Ekbom Disease, is a neurological condition that healthdirect describes as common. Per RACGP clinical guidance published in Australian Family Physician, RLS affects approximately 10% of the general Western population, with higher prevalence in women and older adults (10–20%). A mattress doesn't treat RLS — for diagnosis and treatment, see your GP. But a mattress with temperature regulation (RLS symptoms can worsen with heat), pressure relief, motion isolation, and a medium-to-medium-firm feel can support better sleep comfort for RLS sufferers. Our Koala Polar+ Mattress is our strongest cooling pick — PolarBands™ + Cooling Kloudcell® that sleeps up to 5°C cooler than our standard Plus per our product page.

Key Takeaways

• RLS is a neurological condition, not a mattress problem. A mattress doesn't treat RLS — see your GP for diagnosis and treatment options. The healthdirect helpline (1800 022 222) is available 24/7 for medical guidance

• Per healthdirect, RLS is a common condition where risk increases with age and symptoms worsen during inactivity, especially in the evening and at night. Per RACGP clinical guidance, RLS affects approximately 10% of the general Western population, rising to 10–20% in women and older adults

• A mattress can support comfort and sleep quality for RLS sufferers through temperature regulation, pressure relief, motion isolation, and the right firmness

• RLS symptoms can worsen with heat — cooling foam mattresses (open-cell, gel-infused, copper or PolarBands™) help meaningfully here

• Our Koala Polar+ is our primary cooling pick; the Koala Plus, Luxe, and Koala Mattress all deliver strong motion isolation through all-foam Kloudcell® construction

What is restless leg syndrome (RLS)?

Per healthdirect (the Australian government's health information service), restless leg syndrome is a common condition that causes unpleasant sensations in the legs and an irresistible urge to move them. It's also called Willis-Ekbom Disease. Per RACGP clinical guidance published in Australian Family Physician (Yee, Killick & Wong, Vol 38, No 5, 2009), RLS is seen in approximately 10% of the general population in Western countries, with higher prevalence in women and older adults (10–20%). Prevalence rises further in specific groups — up to 26% of women in the third trimester of pregnancy, and 20–70% of dialysis patients. RLS can begin at any age, but the risk increases as you grow older.

The hallmark sensations are difficult to describe to someone who hasn't experienced them: tingling, itching, crawling, burning, pulling, or aching deep in the legs (occasionally the arms). The sensations get worse during periods of inactivity — sitting still on a long flight, watching TV in the evening, or lying in bed trying to sleep. Moving the legs temporarily relieves the discomfort, which means RLS sufferers often experience an exhausting cycle of getting up, walking around, and trying to settle again.

Per the Sleep Health Foundation, RLS has a strong association with sleep disturbance because symptoms typically intensify in the evening and at night — the worst possible timing for someone trying to fall asleep.

How RLS affects sleep

RLS makes sleep difficult in three specific ways:

Sleep onset disruption. Lying still to fall asleep is when symptoms commonly intensify. Sufferers often spend extended periods in the urge-to-move-vs-trying-to-sleep cycle before settling.

Sleep continuity disruption. Even after falling asleep, RLS can cause periodic limb movements that fragment sleep architecture and pull sleepers out of deep sleep stages. Many RLS sufferers don't remember these movements but wake feeling unrested.

Partner disturbance. Leg movement during the night disrupts partners as well as the sleeper. This is one of the most common reasons RLS sufferers come to us looking for a foam mattress — motion isolation matters.

The result, per the Sleep Health Foundation, is significant impact on daytime function, mood, and overall quality of life. For the broader sleep-science framing of how mattress features affect sleep stages, see our guide on what makes a deep dream mattress.

Can a mattress help with restless leg syndrome?

The direct answer is: a mattress doesn't treat RLS. RLS is a neurological condition, and treatment paths — including iron supplementation (if deficient), medication, and lifestyle changes — come from your GP. There's no mattress on the AU market that cures restless legs.

What a mattress can do is support better sleep quality for RLS sufferers when symptoms are quiet. The right mattress features make the sleep environment work with your body during the periods symptoms allow rest, rather than adding to the discomfort. Per Better Health Channel Victoria, sleep hygiene practices — including a comfortable bedroom environment — are part of the lifestyle support for managing RLS.

So the mattress decision matters. But it's one part of a broader picture that includes medical care, lifestyle factors, and sleep hygiene. For diagnosis and treatment, see your GP — we'll come back to when that conversation should happen later in this guide.

What to look for in a mattress if you have RLS

Five comfort features that support better sleep for RLS sufferers:

Temperature regulation. RLS symptoms can worsen when you overheat. Cooling foam mattresses with open-cell structure (like our Kloudcell®), gel infusions, phase-change materials (PCMs), or copper-infused foams handle this best. We'll cover this in detail in the next section.

Pressure relief. During periods when symptoms are quiet, comfortable pressure distribution helps you actually rest. High-density foam, multi-layer comfort cores, and breathable cover materials deliver this. For more on pressure-relieving mattress design specifically, see our pressure relief mattress guide.

Motion isolation. RLS movement during the night can disrupt both you and your partner. Foam mattresses — especially all-foam construction like our Kloudcell® range — outperform pocket-spring hybrids on motion isolation. The foam absorbs movement locally rather than transmitting it across the bed.

Edge support. RLS sufferers often need to get out of bed to walk symptoms off. A mattress with stable edges makes that easier without disturbing a partner. Quality foam construction and supportive perimeters help.

Medium-to-medium-firm feel. Industry consensus for RLS comfort sits around medium to medium-firm. Too-soft mattresses can compress around your legs and create a "stuck" feel; too-firm mattresses can amplify pressure points. Our flippable Koala Mattress lets you test both medium and firm during the 120-day trial.

Why temperature regulation matters for RLS

Heat is one of the more consistently reported RLS aggravators. When the body temperature rises — whether from external heat (humid AU summer nights, warm bedrooms) or from a mattress that traps body heat — RLS symptoms commonly intensify.

A cooling foam mattress addresses this at three layers:

Foam structure. Open-cell foams (like our Koala Polar+ and the rest of the Koala range) allow air to flow through the foam itself, rather than trapping heat in closed-cell memory foam structures.

Active cooling tech. Gel infusions absorb body heat; phase-change materials (PCMs) actively pull thermal energy from the body; copper-infused foam (used in our Koala Luxe) draws heat away via high thermal conductivity; PolarBands™ in our Koala Polar+ add Koala-exclusive heat-management.

Breathable cover materials. TENCEL™ Lyocell, cotton, and bamboo viscose all manage moisture and breathe well — important in humid AU climates where ambient heat compounds the RLS aggravation.

For a fuller deep-dive on cooling tech, see our best cooling foam mattress for Australian summers guide or our what is a cooling mattress concept hub.

Pressure relief and motion isolation for RLS sufferers

These two features work together for RLS sleep support:

Pressure relief. When symptoms are quiet and you settle into sleep, even pressure distribution across hips, shoulders, and the lumbar region prevents the secondary discomfort that wakes you with stiff joints. Multi-layer foam comfort cores, zoned construction (our Koala Luxe uses 7-zone precision support), and high-density support foams deliver this.

Motion isolation. When you do shift position or get up to walk symptoms off, the partner sharing your bed shouldn't be disturbed. All-foam construction outperforms innerspring or pocket-spring hybrids on motion isolation — the foam absorbs movement locally rather than transmitting it. Every Koala mattress uses Kloudcell® open-cell foam, which delivers strong motion isolation across the range. For couples specifically navigating shared-bed challenges, see our best mattress for couples guide.

Other sleep hygiene factors that support RLS management

A mattress is one part of the picture, not the whole picture. Per the Sleep Health Foundation and Better Health Channel Victoria, several lifestyle and sleep hygiene factors support RLS management:

• Regular exercise — but not too close to bedtime; gentle movement (walking, stretching, yoga) often helps more than intense workouts

• Avoid caffeine in the afternoon and evening — caffeine is a recognised RLS trigger for many sufferers

• Limit alcohol and nicotine — both can worsen RLS symptoms

• Consistent sleep schedule — going to bed and waking at the same time helps overall sleep architecture

• Check iron levels — iron deficiency is associated with RLS in many cases; your GP can order blood tests

• Manage bedroom temperature — cool room (18–20°C), light bedding, cooling mattress

• Reduce screen time before bed — blue light affects melatonin and can compound sleep onset difficulty

• Stress and anxiety management — both can worsen RLS frequency and intensity

These aren't mattress decisions, but they affect how much benefit you'll get from a mattress upgrade. The most expensive cooling mattress in the world won't fully compensate for high caffeine intake or untreated iron deficiency.

When to see your GP about restless legs

Per healthdirect and the Royal Australian College of General Practitioners (RACGP), you should see your GP if:

• Your RLS symptoms regularly affect your sleep

• Your symptoms are worsening or becoming more frequent

• You're experiencing significant daytime fatigue from disrupted sleep

• You're trying to manage the condition with lifestyle changes alone and it's not enough

• You suspect underlying causes (pregnancy, anaemia, kidney disease, peripheral neuropathy)

What your GP can do:

• Confirm an RLS diagnosis through clinical assessment (there's no definitive test for RLS — diagnosis is based on symptoms and ruling out other conditions)

• Order blood tests to check iron levels and rule out other underlying causes

• Discuss medication options if appropriate

• Refer to a sleep medicine specialist or neurologist for complex cases

• Advise on lifestyle modifications specific to your circumstances

For 24/7 health advice, you can also call the healthdirect helpline on 1800 022 222 (known as NURSE-ON-CALL in Victoria). A registered nurse is available to speak with around the clock.

This isn't a step to skip. A mattress decision happens alongside medical care — not instead of it.

Common mistakes when shopping for a mattress with RLS

Five mistakes to avoid:

Treating the mattress as the solution. A mattress supports comfort; it doesn't treat RLS. The shopping decision works best when it sits alongside a GP consultation, not in place of one.

Choosing too-soft for the symptoms. Plush mattresses feel luxurious but compress around your body, increasing contact area and trapping more heat — both of which can compound RLS symptoms. Medium-firm tends to work better.

Ignoring temperature regulation. Heat aggravates RLS for most sufferers. A budget mattress without active cooling tech can undercut the rest of your sleep environment, particularly in humid AU summer months.

Skipping the trial period. RLS symptoms vary night to night and across seasons. A 100+ night trial gives you the time to test the mattress through different symptom periods. Our 120-day trial spans seasons.

Buying for symptoms without ruling out underlying causes. Iron deficiency, pregnancy, kidney conditions, and several medications can cause or worsen RLS-like symptoms. Talk to your GP before assuming the mattress is the answer.

Our Koala range — comfort options for RLS sufferers

Each Koala mattress maps to a different RLS-comfort profile:

Koala Polar+ Mattress — primary cooling pick for RLS sufferers. PolarBands™ over Cooling Kloudcell® — sleeps up to 5°C cooler than the standard Plus per our product page. Temperature regulation is the most direct mattress feature for RLS comfort support, and the Polar+ delivers the strongest cooling in our range. Best for humid coastal AU climates (Sydney, Brisbane, Gold Coast, Cairns) or anyone who runs hot at night.

Koala Plus Mattress — mid-tier cooling + comfort. Cooling Gel Kloudcell® + flippable medium/firm + sleeps 13% cooler than leading online brands per our product page. Strong all-round pick for moderate hot sleepers and temperate AU climates.

Koala Luxe Mattress — premium multi-feature support. Copper-infused Kloudcell® + phase-change materials + 7-zone precision support + Australian cashmere blend cover. Active cooling tech across multiple layers, plus zoned pressure relief that works well during symptom-quiet periods.

Koala Mattress — entry-tier comfort with flippable firmness. Medium and firm sides — test both during the 120-day trial. Strong all-foam motion isolation across the range.

All four mattresses use Kloudcell® open-cell foam construction — strong motion isolation across the range, meaningful for both the RLS sufferer and the partner sharing the bed. All backed by our 120-day trial, 10-year warranty, free metro delivery, and free metro return if it's not the right fit. To compare in person, visit our Koala Moore Park Showroom in Sydney.

For pressure relief specifically (separate from cooling), see our pressure relief mattress guide. For the broader sleep-quality framing, see our deep dream mattress concept guide. For athletes who also manage RLS, see our best mattress for sports recovery guide.

Time to set up a more comfortable sleep environment?

Our Koala Polar+ Mattress is our strongest cooling pick — PolarBands™ over Cooling Kloudcell®, all-foam motion isolation, and a 120-day trial that lets you test through different symptom periods. Pair it with your GP's RLS management plan, not as a substitute for it.

Shop the Koala Polar+ Mattress →