Atlantis S1 Mattress Review
The Atlantis S1 Mattress is Australian made and features an impressive, customisable design. This allows users to adjust the firmness of the mattress if they are not satisfied with their initial selection.
The Atlantis S1 Mattress was awarded Australia’s ‘Best Value’ Mattress by Bedbuyer in 2024.
✏️ Product summary
- Innerspring mattress
- Adjustable firmness levels
- Fresh box option for fast delivery
- 100 night trial period
- Current best price is $1,679 (queen)
- Click SHOP NOW and use code BEDBUYER220 for best price
Purchase and delivery
The Atlantis S1 Mattress can be conveniently ordered online through the Atlantis Sleep website.
The Atlantis S1 Mattress can ordered in a number of sizes and firmness configurations which will be discussed further down.
One important delivery aspect of the Atlantis S1 Mattress is that it can be ordered either compressed in a box or not compressed in a box.
If you decide to order this mattress compressed in a box, it will be ‘freshly boxed’. This means that it won’t be sitting in warehouses for extended periods of time like many other bed in a box products.
Furthermore, ordering this mattress compressed in a box means that delivery times will be fast.
And of course, if you prefer to order the mattress to be delivered in the traditional method (not compressed in a box), you can too. Your choice will simply reflect what is important to you.
Whether you order in a box or not, there will be a fair amount of packaging (cardboard and plastic) to dispose of. So, some planning may be required along with a fair bit of bin space.
Removing the packaging from either delivery option is straight forward, but we do recommend having two people available to assist with the unpacking process.
Atlantis Sleep offers free delivery, Australia-wide for the boxed delivery option.
For the non-boxed option, delivery can still be made Australia-wide (except to the Australian Capital Territory, the Northern Territory, and Tasmania), with free delivery to major metro areas. For non metro deliveries, please use the shipping calculator on the shop page.
Atlantis Sleep can also remove and recycle your old mattress for an additional $60. This option can be selected on the shop page.
Aesthetically speaking, the Atlantis S1 Mattress presents with a stylish, modern appearance. It sits 34cm high and uses a white, grey, and teal colour theme, to (presumably) reflect its ocean friendly theme.
The Atlantis brand label (with the Australian made logo), also gives it a nice finishing touch.
Mattress construction
The Atlantis S1 Mattress is an innerspring mattress that consists of multiple comfort layers and a pocket spring system.
1. Sea-Soft Fabric Cover
The Atlantis S1 Mattress starts with a ‘Sea-Soft Fabric Cover’ that is made from Tencel and Seaqual. Seaqual is a fibre made from the rescued plastics from our oceans.
This fabric cover is integrated with a ‘Breez-flow quilting’ that helps to eliminate body impressions and increase air flow through the mattress.
2. HybridFlow layer
The comfort layer of the Atlantis S1 Mattress includes a layer of ‘HybridFlow’ foam. This Australian made foam formulation is designed for comfort, breathability, and temperature regulation.
3. Atlantis ComfortAdjust layer
Underneath the top comfort layer is a changeable support system called the ‘Atlantis ComfortAdjust layer’. This layer can be adjusted (by requesting additional layers), and it is this layer that controls the firmness of this mattress.
Both the HybridFlow layer and ComfortAdjust layers qualify as the highest grade of are Australian made foams, namely Joyce’s Premium Comfort range of foams.
4. Support system
These comfort layers sit over the ‘Atlantis Contour Support Foundation’. This pocket spring system is designed to provide highly specific back support as well as minimal partner disturbance.
This spring unit uses a multi-zone support system to enhance contouring for the spine. It can accommodate up to 300kgs (queen size mattress).
A stronger layer of springs around the mattress perimeter is designed to prevent side sagging and maximise sleep surface for the user.
How does the customisation work?
As we mentioned earlier, the Atlantis S1 Mattress allows you to select a firmness level that suits you (and your partner).
On your initial order, you can choose your mattress in a firm, medium, or soft feel. Additionally on your initial order, you can order a half-half configuration (e.g. firm on one side, soft on the other).
This half-half configuration can be ordered on queen, and king sizes, and is ideal for couples who have different firmness preferences.
If you aren’t completely satisfied with your initial selection, you can request from Atlantis Sleep (at no charge) additional foam layers to alter the firmness of your mattress. It’s worth noting that this must be done after 21 nights, and within the 100 night trial period.
As part of this firmness adjustment, you can request extra firm, firm, medium, or soft layers.
This unique adjustability makes this mattress suitable for a wide range of people, especially those who are particular about their mattress firmness, or for those who suffer with a spinal condition.
The unique adjustability of this mattress should accomodate just about anyone in terms of comfort, quality, and support.
Comfort and support
The Seaqual fabric cover and quilting feels soft and luxurious, and is one of the nicest mattress covers that we have seen.
The firm version of the Atlantis S1 Mattress is very comfortable and certainly doesn’t feel hard or overly firm. It has a nice level of pressure relief and absorbs body weight smoothly.
This firm version should suit all sleeping positions (side sleepers, back sleepers, and stomach sleepers) but this suitability will vary between individuals.
In terms of a specific firmness rating, our reviewers settled on a 7 / 10 on the firmness scale (with 10 being the firmest), based on a majority vote.
Firm Version
Please note that our firmness ratings are just a guide and they do not necessarily relate to comfort.
Furthermore, our firmness ratings are assigned based on Bedbuyer’s testing process and these may differ from firmness ratings given by individual companies. Mattress firmness will also vary depending on the type of bed base used.
We tested the Atlantis S1 Mattress on the Soho Slimline Base which is a good quality bed base with solid slats.
The medium version of the Atlantis S1 Mattress offers plenty of comfort and pressure relief. It absorbs body weight smoothly and feels rather luxurious.
This medium version should suit all sleeping positions (side sleepers, back sleepers, and stomach sleepers) but again, this suitability will vary between individuals.
Our reviewers settled on a 6 / 10 on the firmness scale (with 10 being the firmest), based on a majority vote.
Medium Version
The soft version offers an abundance of comfort, and would be best suited for side sleepers. It absorbs body weight effortlessly, and you can almost feel your body melt into the comfort foams.
Our reviewers settled on a 4.5 / 10 on the firmness scale (with 10 being the firmest), based on a majority vote. Again, please note that our firmness ratings are just a guide.
Soft Version
The extra firm version can be created by requesting this option, if you are not satisfied with your original firmness selection.
As you would expect, the extra firm version feels firm and supportive, and would most likely suit back sleepers. The HybridFlow comfort layer ensures that this version doesn’t feel rock hard.
Our reviewers settled on a 8 / 10 on the firmness scale (with 10 being the firmest), based on a majority vote. Again, please note that our firmness ratings are just a guide.
Extra Firm Version
Regardless of what firmness option/s you choose, the Atlantis S1 Mattress offers excellent back support. The Atlantis Contour Support Foundation feels stable and robust, and should offer a high degree of spinal support for all people.
Based on the quality of the Contour Support Foundation, we would expect this mattress to accommodate people of all sizes.
All firmness options of the Atlantis S1 Mattress respond well to normal sleep movements. As such, we rated the level of responsiveness of this mattress as optimal zone. In basic terms, this means that changing sleep positions (and intimate activities) shouldn’t be any trouble.
Responsiveness
Please note that our responsiveness scales are just a guide and preferred responsiveness levels will vary between individuals. It’s worth noting also that innerspring mattresses are generally more responsive than foam mattresses.
The finer details
The build quality and craftsmanship of the Atlantis S1 Mattress is excellent. The quality of the foams and fabrics is of a high standard, as is the quality of the stitching and finishings.
The zip mechanism that removes the top cover is smooth and easy to use. This makes rearranging the Atlantis ComfortAdjust layers relatively easy, but some care and patience may be required when positioning these layers.
The fabric that covers the foam layers is thin but smooth, making it easy to swap the foam layers.
Edge support is strong, and is best on the firmer versions. So, you should be able to use the full surface of the mattress, without the fear of falling off the edge.
In terms of partner disturbance, the spring system in the Atlantis S1 Mattress (Atlantis Contour Support Foundation) isolates motion reasonably well. Partner disturbance is present, but it shouldn’t be significant.
With that said, motion transfer may vary. A larger mattress (e.g. king size) will usually involve lower amounts of motion transfer. Partner disturbance will also depend on the size of the occupants of the bed.
The Atlantis Mattress comes with strongly attached side handles. These handles are positioned horizontally and are easy to use. Side handles will always make moving or transporting a mattress easier.
It’s worth noting here that the foams used in this mattress are certified by Global GreenTag International. Global GreenTag is one of the world’s most robust, trusted and widely recognised eco-labels.
The foams in the Atlantis S1 Mattress have also been independently certified with the OEKO-TEX® STANDARD 100. This certification reflects that these foams are free of harmful chemical substances and are safe for direct contact with the skin.
The Atlantis S1 Mattress uses a special fibre called Seaqual, which is made from rescued plastics from our oceans.
The Atlantis S1 Mattress uses a special fibre called Seaqual, which is made from rescued plastics from our oceans. This combined with the Global GreenTag certification, makes this mattress a market leader when it comes to environmental sustainability.
What bed base should I use?
As with most mattresses, we recommend the Atlantis S1 Mattress to be used with a bed base with solid slats (not flexible/posture slats), such as the Atlantis Bed Base.
We would advise against using a bed base with flexible (posture) slats as this type of base may not provide adequate support. Ultimately, the use of an unsupportive mattress foundation will void the mattress warranty.
We don’t recommend the Atlantis S1 Mattress to be used with an adjustable (electric) bed base as this may cause damage to the mattress components. Here is our full list of mattresses that are compatible with an adjustable bed base.
It’s worth noting here that mattress firmness, performance, and durability will vary with different bed bases.
Trial period and warranty
The Atlantis S1 Mattress comes with a 100 night trial period, which is a typical trial period duration in the online mattress market.
This trial period means that you can return the mattress for a refund if you are not satisfied (conditions do apply).
Another option you have if you are not satisfied with your initial purchase, is that you can request additional foam layers (e.g. soft) to adjust the firmness of your mattress.
As mentioned earlier, requests for firmness adjustments must be done within the 100 night trial period. Requests for firmness adjustments cannot be made in the first 21 nights weeks (from the time of delivery).
This mattress also comes with a 10 year warranty to cover any faulty materials or workmanship. This is also a typical warranty length of many of its online competitors.
Available sizes
The Atlantis S1 Mattress is available in 5 sizes (king, queen, double, king single, and single size) so it should accommodate most sleeping arrangements.
Here are Australia’s standard bed (mattress) sizes in 2024.
Final verdict
The Atlantis S1 Mattress is a superb mattress that comes with adjustable firmness levels and reputable non-toxic certifications.
The fresh box delivery option also makes this mattress available for fast delivery, Australia-wide.
Bedbuyer’s rating: 4.8 / 5
Here are our ratings in each category:
Comfort
Spinal Support
Build Quality
Partner Disturbance
Value for Money
Did you know? The Atlantis S1 Mattress was listed in Australia’s Top 10 Best Mattresses in 2024!
If you have any questions about the Atlantis S1 Mattress, please leave a comment below.
Retail Prices Bedbuyer Prices*
* Once Bedbuyer discount code is applied. Click SHOP NOW and use code BEDBUYER220 at checkout.
Atlantis Payment & Finance Options
VISA, Mastercard, Afterpay, ZipPay, ShopPay, GooglePay, ApplePay
Delivery information
1. Fresh Box Option
The Atlantis S1 Mattress can be ordered as a ‘fresh box’ which means that the mattress is compressed into a box to allow for a faster and wider delivery range, than the non-boxed option.
The fresh box will only be compressed for a short period to maximise delivery efficiency. It won’t be sitting compressed for long periods like many other bed in a box products.
Most other boxed mattresses are made in China and have to stay boxed from the manufacturing plant, through container shipment, and then while warehoused in Australia. A long compression time can mean that the materials don’t bounce back and therefore don’t perform to their desired levels.
2. Non-boxed Option
The Atlantis S1 Mattress can also be ordered in a non-boxed option. This option includes free delivery in all metro areas (except for the ACT, Northern Territory, and Tasmania).
For non metro areas – please use the shipping calculator and checkout page to delivery times and costs.
Product information – Atlantis S1 Mattress
- Weight: 55kgs (Queen mattress)
- Height: 34cm
- Spring count : 768 (Queen mattress)
- Coil gauge : 1.8mm soft zone, 2.0mm firm zone, 2.2mm on the sides
- Total maximum weight limit: 300kgs (Queen mattress)
Atlantis has created an ultra-soft and super breathable mattress designed to soothe you into a perfect night’s sleep, every night. 100 night free trial + free comfort change.
Certifications
Global GreenTag is one of the world’s most robust, trusted and widely recognised eco-labels. GGT independently assures that every product is fitness tested and certified under their leading certification program.
Joyce foams have been independently certified as free of harmful substances according to the strict global criteria of OEKO-TEX® STANDARD 100. OEKO-TEX® test criteria consider regulations, scientific data on maintaining good health and non-government organisational requirements for safety.
STANDARD 100 certifies that Joyce comfort foams are:
- Free of harmful chemical substances
- Safe for direct contact with the skin
Every Atlantis mattress features a knitted and quilted top cover that combines Seaqual Yarn, made from discarded marine plastic, with renewable Tencel, produced from certified sourced natural raw wood.
The Atlantis S1 Mattress is Australian made.
Materials
1. Sea-Soft Fabric Cover
An Australian knitted top panel combining the yarns of Tencel and Seaqual.
Seaqual is an amazing new fibre that is made from the rescued plastics from our oceans and transformed into a beautiful and versatile yarn.
Combined with renewable Tencel, this creates an ultra soft, breathable and moisture absorbing fabric that is uniquely soft as well as friendly to our oceans and planet;
2. Breez-flow quilting
Combined Australian hypersoft and Breez flow quilting to virtually eliminate body impressions and increase airflow through the mattress;
3. HybridFlow
Our unique comfort layer formulation that provides unrivalled pressure relief and body contouring. Best of all, its ultra-breathable, Australian, and keeps you cool all year round;
4. Atlantis ComfortAdjust
A unique, Australian made self-adjustable high density comfort system that allows for personalised comfort for a superior sleep. Choose the firmness the way you like it.
This unique comfort system can be adjusted to be firmer or softer and works to allow for individualised comfort on each side of the mattress;
5. Atlantis Contour Support Foundation
A premium individualised pocket spring support system to optimise body contoured support and minimise partner disturbance.
The spring support foundation incorporates a body aligned multi-zone support system to ensure optimal body support. Stronger springs on the mattress edge also help to improve edge support.
The following information is provided by Atlantis Sleep. It does not necessarily reflect our review above.
Discover the Atlantis S1 Mattress
Quality
Fibres knitted into an ultra soft, breathable and moisture absorbing fabric that is uniquely soft as well as environmentally friendly.
We combine and quilt this with Australian Hypersoft foam to virtually eliminate body impressions and increase airflow through the mattress.
Comfort
Our advanced combination of premium comfort layers are designed to provide the ultimate in pressure relief and support due to their conforming properties.
Their open cell structure ensures mattress breathability for a more optimum sleeping temperature and a greater nights sleep.
Custom
Our exclusive, Australian made self-adjustable comfort system that allows for personalised comfort for a superior sleep.
The system allows you to tailor each side of your mattress across three different comfort levels (Firm, Medium, Soft) which allows each individual to choose the firmness the way they like it.
Support
A premium pocket spring support system to ensure contoured body support with minimal partner disturbance. The double tempered spring system incorporates a multi-zone support system to allow for firmer support where you need it most.
The perimeter of the mattress incorporates a firmer spring to provide greater edge support to increase the sleep surface.
Ocean-friendly fabric
Super soft. Super sustainable.
Every Atlantis mattress features a knitted and quilted top cover that combines Seaqual Yarn, made from discarded marine plastic, with renewable Tencel, produced from certified sourced natural raw wood.
These fibres are knitted into an ultra soft, breathable and moisture-absorbing fabric, and quilted with Australian Hypersoft foam to virtually eliminate body impressions and increase airflow through the mattress. So you can help save the planet while you sleep.
Ultra-breathable layers
Designed for maximum comfort.
Our tri-layered, pressure-relieving comfort layer system is designed to give you the perfect night’s sleep. Made in Australia from GECA-certified materials, our foams are high quality, durable and above all comfortable.
And because we’ve designed it to allow maximum airflow and breathability, you’ll always find your mattress is the perfect temperature. Time to hit the snooze button.
Multi-zone contouring
Support in all the right places.
Thanks to our premium pocket spring, multi-zone support system, you’ll always feel support wherever you need it the most (as well as less disturbance if your partner’s a restless sleeper).
And because the edge of your mattress features a firmer spring, there’s even more room to comfortably spread out. Which is great news for you – and whoever you’re sharing your bed with.
3 step comfort adjust process
Select your feel
Choose your ideal comfort level at purchase: firm, medium or soft. If you and your partner can’t agree, you can opt for a split feel that gives you the best of both worlds.
Sleep on it
Once your mattress has been delivered, we’ll give you three weeks to see if you’re happy with how it feels (it can sometimes take a bit of time to get used to a new mattress, hence the wait).
Change it up
Not 100% happy with the feel of your mattress? Change it for a different firmness level, free of charge. Your comfort layer can be easily swapped out at home by simply unzipping the mattress cover.
Why Atlantis
Tread lightly. Sleep deeply.
By using innovative materials and thoughtful manufacturing processes, the Atlantis S1 Mattress allows you to look after the planet while you sleep. So you can clean up our seas while you catch some zzz’s.
Australian made, built to last
We minimise our carbon footprint by making sure every last one of our mattresses and bed bases is made on Australian soil, from locally sourced, GECA-certified materials, using processes that won’t harm the planet.
Even better, they come with a 10 year warranty.
Support in all the right places
What makes a good mattress?
Comfort. Quality. Durability. Check, check and check. But what about a mattress that does good?
100% Aussie made & owned
Every Atlantis S1 Mattress is made right here in Australia, using recycled ocean plastics that we’ve transformed into a super soft, breathable, planet-friendly fabric.
So you can rest easy knowing your mattress isn’t just good for your sleep, it’s good for the earth too.
The perfect mattress didn’t exist. So we invented it.
When it comes to sleep, we’ve never believed that comfort and sustainability are mutually exclusive. So we set out to prove it.
Planet-friendly fabric
We’ve scoured the globe to find environmentally-friendly suppliers who share our vision. That’s why our super soft knitted and quilted top cover combines Seaqual Yarn, made from discarded marine litter, with renewable Tencel, produced from certified sourced natural raw wood.
Adjustable comfort system
Whether you like your mattress firm, soft, or somewhere in between, our self-adjustable comfort system allows you to tailor your mattress so that it’s always just right. And if you and your partner can’t agree, you can split the firmness across each side of the bed (all free of charge).
100 night free trial
We know. Buying a mattress online comes with a few unknowns. But we’re so confident you’ll love your new mattress, we’ll let you try it for free. And if you’re still not convinced after 100 nights? You can return it, no questions asked.
Comfort, tripled.
The Atlantis S1 Mattress has a tri-layered, ultra-breathable, pressure-relieving comfort layer system, designed to give you the perfect night’s sleep at the perfect temperature. Get ready to get comfortable.
Free firmness swaps
Not sure how firm you want your mattress? You don’t have to decide now. With our free firmness or softness swaps, you can sleep on it (literally). And if you find it’s not perfect for you, we’ll trade you for one that is.
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