16-21cm Thick Mattresses
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Siena 21cm Thick Euro Top Spring Mattress - Queen
Rated 4.7 out of 5 stars39RRP $354.99Regular price $335.71Save $19Sale price Now $335.71 Regular priceUnit price per -
Rio 21cm Thick Pillow Top Spring Mattress - Double
Rated 4.7 out of 5 stars43RRP $354.99(Was $265.12)Regular price $202.94Sale price Now $202.94Regular priceSave $152!
(Was $265.12)Unit price perSave $152!
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Brooklyn 21cm Thick Pocket Spring Mattress - King Single
Rated 5.0 out of 5 stars5RRP $226.99(Was $154.50)Regular price $127.53Sale price Now $127.53Regular priceSave $99!
(Was $154.50)Unit price perSave $99!
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Apex 16cm Thick Premium Knitted Fabric Spring Mattress - Single
Rated 4.8 out of 5 stars22RRP $159.99(Was $123.19)Regular price $88.70Sale price Now $88.70Regular priceSave $71!
(Was $123.19)Unit price perSave $71!
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Provo 16cm Premium Top Spring Foam Medium Soft Mattress - King
RRP $366.99(Was $314.69)Regular price $232.93Sale price Now $232.93Regular priceSave $134!
(Was $314.69)Unit price perSave $134!
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Corwin 16cm Tight Top Bonnell Spring Mattress - Queen
Rated 5.0 out of 5 stars6RRP $232.99(Was $159.67)Regular price $151.32Sale price Now $151.32Regular priceSave $82!
(Was $159.67)Unit price perSave $82!
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Russell 16cm Thick Spring Mattress - Double
Rated 4.8 out of 5 stars19RRP $259.99(Was $205.33)Regular price $175.33Sale price Now $175.33Regular priceSave $85!
(Was $205.33)Unit price perSave $85!
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Darien 20cm 5-Zoned Pocket Spring Mattress - King Single
Rated 5.0 out of 5 stars2RRP $266.99(Was $224.05)Regular price $166.37Sale price Now $166.37Regular priceSave $101!
(Was $224.05)Unit price perSave $101!
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Siena 21cm Thick Euro Top Spring Mattress - King
Rated 5.0 out of 5 stars4RRP $409.99(Was $321.84)Regular price $255.29Sale price Now $255.29Regular priceSave $155!
(Was $321.84)Unit price perSave $155!
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Amaris 20cm Memory Foam Mattress Cooling Gel - King Single
RRP $297.99Regular price $207.00Save $91Sale price Now $207.00 Regular priceUnit price per -
Rio 21cm Thick Pillow Top Spring Mattress - Single
Rated 4.9 out of 5 stars27RRP $209.99Regular price $140.45Save $70Sale price Now $140.45 Regular priceUnit price per -
Rio 21cm Thick Pillow Top Spring Mattress - Queen
Rated 4.5 out of 5 stars32RRP $392.99(Was $254.00)Regular price $217.36Sale price Now $217.36Regular priceSave $176!
(Was $254.00)Unit price perSave $176!
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Siena 21cm Thick Euro Top Spring Mattress - Single
Rated 4.9 out of 5 stars13RRP $226.99Regular price $163.86Save $63Sale price Now $163.86 Regular priceUnit price per -
Russell 16cm Thick Spring Mattress - Single
Rated 4.7 out of 5 stars12RRP $166.99(Was $118.26)Regular price $113.03Sale price Now $113.03Regular priceSave $54!
(Was $118.26)Unit price perSave $54!
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Siena 21cm Thick Euro Top Spring Mattress - Double
Rated 4.6 out of 5 stars26RRP $342.99Regular price $254.64Save $88Sale price Now $254.64 Regular priceUnit price per -
Brooklyn 21cm Thick Pocket Spring Mattress - Single
Rated 5.0 out of 5 stars2RRP $171.99(Was $156.47)Regular price $140.45Sale price Now $140.45Regular priceSave $32!
(Was $156.47)Unit price perSave $32!
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Siena 21cm Thick Euro Top Spring Mattress - King Single
Rated 4.8 out of 5 stars12RRP $209.99(Was $201.76)Regular price $190.04Sale price Now $190.04Regular priceSave $20!
(Was $201.76)Unit price perSave $20!
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Corwin 16cm Tight Top Bonnell Spring Mattress - King Single
RRP $182.99Regular price $146.38Save $37Sale price Now $146.38 Regular priceUnit price per -
Rio 21cm Thick Pillow Top Spring Mattress - King
Rated 4.5 out of 5 stars12RRP $416.99(Was $349.63)Regular price $268.18Sale price Now $268.18Regular priceSave $149!
(Was $349.63)Unit price perSave $149!
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Eden 18cm Mattress Pillow Top - Queen
Rated 5.0 out of 5 stars3RRP $359.99(Was $268.44)Regular price $234.12Sale price Now $234.12Regular priceSave $126!
(Was $268.44)Unit price perSave $126!
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Eden 18cm Mattress Pillow Top - Single
Rated 4.8 out of 5 stars5RRP $226.99(Was $154.00)Regular price $146.38Sale price Now $146.38Regular priceSave $81!
(Was $154.00)Unit price perSave $81!
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Brooklyn 21cm Thick Pocket Spring Mattress - Queen
Rated 4.9 out of 5 stars15RRP $309.99(Was $289.18)Regular price $226.13Sale price Now $226.13Regular priceSave $84!
(Was $289.18)Unit price perSave $84!
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Apex 16cm Thick Premium Knitted Fabric Spring Mattress - Queen
Rated 4.9 out of 5 stars10RRP $266.99(Was $251.95)Regular price $221.79Sale price Now $221.79Regular priceSave $45!
(Was $251.95)Unit price perSave $45!
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Apex 16cm Thick Premium Knitted Fabric Spring Mattress - King Single
Rated 4.8 out of 5 stars12RRP $182.99(Was $150.31)Regular price $125.67Sale price Now $125.67Regular priceSave $57!
(Was $150.31)Unit price perSave $57!
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Eden 18cm Mattress Pillow Top - Double
Rated 5.0 out of 5 stars1RRP $316.99(Was $251.00)Regular price $199.61Sale price Now $199.61Regular priceSave $117!
(Was $251.00)Unit price perSave $117!
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Brooklyn 21cm Thick Pocket Spring Mattress - Double
Rated 4.6 out of 5 stars12RRP $309.99(Was $252.43)Regular price $188.43Sale price Now $188.43Regular priceSave $122!
(Was $252.43)Unit price perSave $122!
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Russell 16cm Thick Spring Mattress - King Single
Rated 5.0 out of 5 stars7RRP $209.99(Was $136.75)Regular price $125.87Sale price Now $125.87Regular priceSave $84!
(Was $136.75)Unit price perSave $84!
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Amaris 20cm Memory Foam Mattress Cooling Gel - Queen
RRP $397.99(Was $294.68)Regular price $246.44Sale price Now $246.44Regular priceSave $152!
(Was $294.68)Unit price perSave $152!
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Shop Affordable 16-21cm Thick Mattresses
Factory Buys stocks a broad range of 16-21cm thick mattresses across Australian standard sizes from single through to king, dispatched within 1–2 business days. This thickness range includes euro top spring, pillow top spring, pocket spring, tight top bonnell spring, and memory foam cooling gel constructions across multiple firmness levels, giving you a wide selection to compare within a lower profile format. Filters for size, firmness, and price make it straightforward to narrow down the right option before comparing listings in detail. Browse the full mattresses range across all thickness bands, compare 21-25cm thick mattresses if you prefer a mid-range profile, or explore foam mattresses for a dedicated foam selection. Customers consistently praise the quality and value for money, making it easy to shop with confidence.
Why choose a 16-21cm thick mattress
The 16 to 21cm thickness range is one of the most versatile profiles available, suiting a wide variety of bed bases, frames, and sleeping preferences. A lower profile mattress works particularly well on platform bases, slatted frames, and ensemble bases where adding significant height is not desirable. It is also a practical choice for bunk beds, trundle beds, and guest room setups where overall bed height needs to be kept manageable.
Within this thickness band the range spans multiple construction types, so the feel and support on offer varies considerably from one listing to the next. A 16cm pocket spring mattress will perform quite differently to a 21cm euro top spring or a memory foam cooling gel model at the same profile height. Checking the construction type and firmness on each product listing is the most reliable way to compare options side by side.
Construction types in this range
The 16 to 21cm collection includes both spring and foam constructions, giving shoppers a choice of feel within the same thickness band. Spring options include pocket spring, euro top spring, pillow top spring, tight top bonnell spring, and premium knitted fabric spring designs. Each spring type varies in how it distributes support and how the surface feels, so reviewing the product description carefully before purchasing is worthwhile.
For shoppers specifically interested in spring constructions, the pocket spring mattress and euro top mattress collections offer dedicated selections within those construction types. If a foam construction is your preference, the memory foam mattress range covers foam options across multiple thickness profiles.
Comparing thickness bands
If you are unsure whether the 16 to 21cm range is the right fit, it helps to compare across the available thickness bands before deciding. Thicker profiles offer a higher overall bed height and can provide a more substantial feel, particularly for heavier sleepers or those who prefer a more cushioned surface. Profiles in the 25 to 34cm range and over 34cm are worth browsing if a deeper profile appeals to you.
Always confirm the mattress dimensions on the product listing match your Australian standard bed size and your existing base or frame before purchasing.
Completing your bedroom setup
Pairing your mattress with a compatible base is important for both comfort and longevity. A well-matched bed base provides even support across the mattress surface and can affect how it performs over time. For shoppers who need a frame as well, the bed frames range covers all Australian standard sizes.
A mattress protector is a practical addition from day one, helping maintain hygiene and protecting the mattress surface from everyday wear.
Which setup is the 16 to 21cm thickness range best suited to?
A lower profile mattress works particularly well on platform bases, slatted frames, ensemble bases, bunk beds, trundle beds, and guest room setups where keeping overall bed height manageable is a priority. If your base sits closer to the floor or you need the mattress to fit within a specific frame design, this range is a practical starting point. Check the product listing for any base compatibility notes before purchasing.
What size mattress do you need, and how do you confirm it fits?
Mattresses in this range are available in Australian standard sizes from single through to king. Match the mattress size to your existing bed frame or base first, then confirm the exact dimensions on the product listing before ordering. Please take the time to get the size right before placing your order, and reach out to our support team if you have any questions.
Which construction type suits you best in this thickness band?
This range includes both spring and foam constructions across multiple firmness levels. Spring options cover pocket spring, euro top spring, pillow top spring, tight top bonnell spring, and premium knitted fabric designs. Foam options include memory foam and cooling gel models. Each construction distributes support differently, so check the construction type and firmness notes on each product listing before deciding.
Which firmness level should you choose for your sleep position?
Firmness options across this range include comfort, medium firm, and firm variants. Your preferred sleep position and body weight are the most reliable guides. Use the firmness filter on the collection page to narrow the options, then review the listed firmness level on each product listing before adding to cart.
What should you do if your mattress arrives damaged or is not as described?
All orders are dispatched from our warehouse within 1 to 2 business days. Delivery typically takes 1 to 12 business days, depending on your location and the courier. All products include a 12 month warranty, and our Customer Support team is available 8 am to 8 pm, 7 days per week. If you need help at any stage, visit our Contact Us page and include your order number plus a short description so we can assist sooner.




























