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Sleep Solutions
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What people are saying
5 | 87% | |
4 | 8% | |
3 | 2% | |
2 | 1% | |
1 | 2% |
L
Excellent product, excellent customer service and very fast delivery. I will say, however, that I find the headhand too hot at the moment. This can't really be helped. But if you tend to run hot or get hot flushes, consider this.
We couldn't believe how fast the electric blankets got here from Sydney. Just 3 days by Australia post to Toowoomba. The products have all the features we wanted as well.
M
They were very helpful when placing an NDIS order and fast.
K
Found the website easy to use and order what I needed Delivery was very quick Will be ordering again
A
Was very keen to try this but so hard to as hubby not like it. Tried with earplugs but the cable was annoying
A
Have been travelling with the pillow and highly recommend
W
I was unsure how this product would work but have been amazed at the change in my breathing/sleeping pattern. So thank you Sleep Solutions I am thrilled with this air purifier and the speed in which it was delivered to me.
J
Great service and quick delivery. Range of Mack's earplugs you can't get in stores here. The ultra soft ones are the winner.
King Size Mattress Topper Guide
The complete Australian guide to king toppers — reviving a tired mattress, solving motion transfer, and dialling in the perfect feel for two very different sleepers.
Ultimate Comfort for Couples
A king size bed (183 cm x 203 cm) is one of the most significant investments you can make in your home — and in your relationship. But even the best mattress eventually starts to lose its feel, sag at the edges, or simply stop delivering the level of comfort you paid for. Before you commit to an expensive replacement, a king size mattress topper is the smarter first step.
A quality topper can completely transform your sleep surface in one evening — adding pressure relief, adjusting firmness, improving temperature regulation, or dramatically reducing the motion transfer that wakes you up every time your partner shifts position. For couples sharing a king bed, it's one of the highest-value sleep upgrades available.
Three Things a King Topper Does Exceptionally Well
King beds introduce specific challenges that smaller sizes don't have — particularly for couples. Here's where a topper makes the biggest difference.
Eliminating Partner Disturbance
Motion transfer is one of the most common and most underrated sleep disruptors for couples sharing a king bed. Every time your partner rolls over, gets up for water, or shifts position, that kinetic energy travels through the mattress and registers as vibration on your side — even if it's subtle enough that you don't fully wake up, it can still fragment your sleep architecture and leave you feeling unrested by morning.
A high-density memory foam topper is the most effective solution. Memory foam excels at absorbing and isolating movement — the foam compresses locally around the source of motion rather than transmitting it laterally across the mattress surface. The result is that your partner's side of the bed becomes essentially independent from yours. Early risers, light sleepers, and couples on different work schedules consistently report that adding a memory foam topper is one of the single most impactful changes they've made to their shared sleep.
Tailored Back Support
Waking up stiff, sore, or with lower back pain is often a sign that your mattress isn't providing the right level of support for your body and sleeping position. On a king bed, this is a particularly common problem because couples typically sleep on different areas of the mattress — and different body weights and sleeping positions create different support requirements across the same sleep surface.
A firm or medium-density memory foam topper can bridge the gap between an under-supported lower back and the mattress surface, helping to maintain a neutral spinal position throughout the night. It distributes body weight more evenly, reduces peak pressure at the hips and shoulders, and prevents the slight sink that causes misalignment on softer or ageing mattresses. For couples where one partner has ongoing back or hip pain, a topper is a much more targeted — and cost-effective — solution than replacing the entire mattress.
Split King Configuration for Different Sleep Preferences
What if one partner needs firm support for their back, while the other wants a soft, plush surface? Or one runs hot while the other runs cold? A single king topper has to serve both — but a split king configuration gives each person complete independence. Instead of one king topper, you use two long single toppers (92 cm x 203 cm each) placed side by side, allowing each partner to choose their own material, firmness, and feel.
The split king is also the standard set-up for couples using an adjustable bed base. Each person has their own mattress and their own topper, so one partner can raise their head section for reading while the other lies completely flat — with no compromise required on either side. The two long single toppers sit together invisibly under a single king fitted sheet.
Long Single
92x203
Partner A's topper
92x203
Partner A's topper
Long Single
92x203
Partner B's topper
92x203
Partner B's topper
=
King Size
183 x 203 cm
under one sheet
183 x 203 cm
under one sheet
Each partner chooses independently
Partner A could choose a firm memory foam for back support while Partner B sleeps on a plush microfibre. Covered by a single king fitted sheet, it looks and functions exactly like a standard king bed.
Best for split king: Long Single Toppers (all materials) | Memory Foam Long Single | Microfibre Long Single
Firm or Plush? How to Choose the Right Feel
The most important decision when buying a king topper isn't the material — it's the feel. The right choice depends entirely on what your current mattress is doing wrong. Answer one question: what does your mattress feel like right now?
My mattress is too firm / too hard
Choose: Plush or Soft
If your mattress is creating pressure points at your hips, shoulders, or knees — or you wake up with joint aches from lying on a hard surface — you need to add softness and cushioning. A plush topper creates a gentle buffer between your body and the firm base beneath.
- Feather & down — maximum cloud-like luxury
- Microfibre / down alternative — soft, affordable, machine washable
- Soft memory foam — adds cushioning while still contouring
- Wool underlay — natural, gentle pressure relief year-round
My mattress is sagging / too soft
Choose: Firm or High-Density
If your mattress has developed a dip or sag, or feels like it lacks support, you need to add structure. A firm, high-density foam topper restores a flatter, more supportive sleep surface and bridges the gap where the mattress has lost its integrity.
- High-density memory foam — most supportive option; corrects mild sag
- Firm latex topper — highly durable; resilient support layer
- Note: toppers can improve moderate sag but cannot fully fix a mattress that needs replacing
Choosing Your King Topper Material
Once you know the feel you need, choose the material that best matches how you and your partner sleep.
Best for Support & Motion Isolation
Memory Foam
The standout choice for couples. Memory foam absorbs motion superbly, contours to individual body shapes on each side of the bed, and provides targeted spinal support. Gel-infused varieties address the heat retention that standard memory foam can cause.
- Best motion isolation of any topper material
- Excellent for back pain and side sleepers
- Gel-infused options for hot sleepers
- Browse Memory Foam King Toppers →
Natural & Year-Round
Wool Underlay
Ideal for couples who want a genuinely natural sleep surface that performs across all seasons. Wool regulates temperature in both directions — keeping you warm in winter and wicking moisture in summer — making it an excellent compromise when two partners have different temperature preferences.
- Natural temperature regulation for mixed-preference couples
- Hypoallergenic and naturally dust mite resistant
- Soft, gentle pressure relief without structural support
- Browse Wool King Underlays →
Luxury Hotel Feel
Feather & Down
For couples who want their bedroom to feel like a 5-star suite, a king feather and down topper delivers that signature cloud-like, enveloping softness. It's naturally breathable and adds warmth without weight — a genuine upgrade in sleep luxury for those without feather allergies.
- Unmatched cloud-like softness and loft
- Naturally breathable — stays comfortable in warmer weather
- Not suitable for feather allergy sufferers
- Browse Feather & Down King Toppers →
Cooling & Eco-Friendly
Bamboo
The best choice for couples in warmer climates or where at least one partner runs hot. Bamboo's natural moisture-wicking properties keep the sleep surface noticeably cooler, and bamboo-cover memory foam toppers combine cooling breathability with the motion isolation and support properties of foam.
- Best for hot sleepers and warm Australian climates
- Bamboo memory foam combines cooling with back support
- Eco-friendly and sustainably sourced
- Browse Bamboo King Toppers →
King Size vs Other Australian Bed Sizes
The king is Australia's largest standard mattress size. Here's how it compares to the other sizes — and what to watch for when buying.
| Size | Width | Length | Notes |
|---|---|---|---|
| Single | 92 cm | 188 cm | Children's and single adult standard |
| Long Single | 92 cm | 203 cm | Used in split king adjustable bed configurations |
| King Single | 107 cm | 203 cm | Wider single — popular single adult upgrade |
| Double | 138 cm | 188 cm | Compact couples size |
| Queen | 153 cm | 203 cm | Most popular couples size in Australia |
| King ★ | 183 cm | 203 cm | Australia's largest standard size — 30 cm wider than queen; maximum couple space |
| Super King | 204 cm | 204 cm | 21 cm wider than king — fits wide adjustable bases and custom frames |
King vs Super King — don't mix up your topper
A king topper (183 x 203 cm) will not fit a super king mattress (204 x 204 cm) — it will fall 21 cm short in width. Always measure your mattress before ordering. If your mattress is on an adjustable base, also check whether you need two long singles (split king) rather than a single king topper.
Find Your Perfect King Topper
Browse our full king size range across every material — from motion-isolating memory foam to hotel-quality feather and down. Need help choosing? Our Australian-based sleep experts are happy to guide you.
National Disability Insurance Scheme
Sleep Solutions is a registered NDIS provider
Sleep Solutions is registered as a provider with the NDIS
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Frequently Asked Questions
What size is a King Mattress Topper in Australia?
An Australian king mattress topper measures 183 cm x 203 cm. This fits standard Australian king beds. For split king adjustable beds, you'll need two long single toppers (92 x 203 cm each) instead.
What is the best King Size Mattress Topper for back pain?
A high-density memory foam topper (7-8 cm thick, 50+ kg/m³ density) provides the best support for back pain on a king bed. Gel-infused memory foam adds cooling if you sleep warm. For a firmer option, look for a high-density foam topper rather than bamboo or down.