Onebed X 12″ Mattress Review (2023)

Last Updated June 28, 2023
Onebed X 12″ Mattress Review (2023)



The Highlights

High-quality and budget friendly
Cooling and breathable
Advanced orthopaedic support

Take Note

May not be firm enough for stomach sleepers
Doesn’t come with handles which may affect manoeuvrability
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Why We Love Onebed X:

Sitting at the premium end of Onebed’s mattress range (which also includes the Onebed Essential and Onebed Original) the Onebed X 12” is a hybrid mattress that boasts 5-zoned pocket springs, providing advanced orthopaedic support. The use of charcoal foam ensures durability and freshness, while the base foam offers edge support. The mattress is designed to keep you cool at night, thanks to the cooling gel and breathable fabric cover. Zero partner disturbance is also a major feature of the Onebed X mattress. It’s available in various sizes and comes with free shipping, a 125-night trial, and a 15-year warranty.

Who’s Going to Love The Onebed X 12″ Mattress

  • You like a medium-firm mattress: The Onebed X offers a medium-firm feel suitable for both plush comfort and back support.
  • You sleep with a partner: The hybrid mattress design offers breathability, buoyancy, and motion isolation, making it comfortable for couples.
  • You like a cooling mattress: Charcoal memory foam layer eliminates odour, maintains temperature, and absorbs moisture, making it easier to maintain the mattress.

Who Should Consider Alternatives To The Onebed X 12″ Mattress

  • You want a firm mattress: Being a hybrid, the Onebed X isn’t as firm as a memory foam mattress.
  • You’re a stomach sleeper: You might find the Onebed X a little too soft if you’re mainly a stomach sleeper.

The Onebed X 12″ Mattress Firmness & Feel

Onebed X mattress is known for providing exceptional comfort. It rates about a 6.5 out of 10 on the firmness scale (with 10 being the firmest), so it’s certainly not a firm mattress by any means. It’s best for two types of sleepers- those who prefer plush comfort and those who require back support. For back sleepers, it nicely moulds your body while still providing the essential support needed to keep your body in alignment while you sleep.

For side sleepers, you can expect some sinkage but that’s a good thing! This helps maintain spine alignment, ensuring no strain on shoulders, back, and hips. Stomach sleepers may find this mattress comfortable, but it might be too soft for others. Motion transfer is decent, as well, which is good news for couples (or pet owners).

Onebed X 12″ Mattress Construction

The Onebed mattress is designed with multiple layers to offer optimal comfort and support. Let’s take a closer look at each layer:

  1. Viscose Blend: The mattress cover is made of a breathable blend of viscose, which provides a silky and luxurious feel. It also features a cubic dimple-protruding design that adds a gentle texture to the surface underneath any bedsheet.
  2. Davina Foam: The top layer of the mattress offers breathability, buoyancy, and motion isolation. This layer has passed the wine glass test, ensuring that you and your partner can sleep comfortably without disturbing each other.
  3. Cooling Gel-Infused Memory Foam: The cooling memory foam layer relieves pressure points and offers weightless comfort throughout the night. It is also infused with cooling gel, which prevents hot flashes and keeps you cool.
  4. Charcoal Memory Foam Layer: The charcoal memory foam layer not only adds to the mattress’s comfort but also makes maintenance easy. It eliminates odours, maintains the temperature, and absorbs moisture.
  5. Pocket Springs: The 5-zoned pocket springs offer advanced orthopaedic support by distributing the body’s weight evenly. These springs help alleviate painful pressure points in your body and provide a premium feel.
  6. High-Density Base Foam: The base foam adds durability and edge support to the mattress. It holds the different foam layers together, ensuring long-lasting comfort.

Is The Onebed X 12″ Mattress Cooling?

The Onebed X mattress offers an exceptional level of comfort and coolness, thanks to its unique design. The open-cell foam structure of the mattress enhances breathability and promotes good airflow. Additionally, the airy pocket springs allow for natural ventilation, which helps regulate the temperature throughout the night.

The mattress also features a cooling gel-infused memory foam layer, which not only relieves pressure points but also prevents hot flashes during sleep. Plus, the highly breathable fabric cover enhances air circulation, making the mattress refreshing and comfortable.

How Is The Edge Support Of The Onebed X 12″ Mattress?

With the inclusion of a foam box edge, the mattress provides excellent edge support, and you won’t feel the springs through the sides. This feature adds to the overall quality of the mattress. Although the mattress is not entirely made of foam, the foam box edge creates an impression of a full foam mattress.

How Is The Responsiveness Of The Onebed X 12″ Mattress?

The Onebed X 12″ Mattress responds seamlessly to typical sleep movements, including changing positions while sleeping (and for intimate activities). It’s highly responsive and adaptable to your needs.

Motion Isolation: Is It Good For Those Who Share A Bed?

As someone who tosses and turns quite a bit, with a partner who is the same (plus a giant Labrador sharing the bed as well), I can confidently say motion isolation on the Onebed X 12″ is decent. I could still feel my partner and dog moving, but I am a light sleeper.

How Much Does The Onebed X 12″ Mattress Cost?

Onebed isn’t the cheapest mattress retailer on the market, but they do offer an aggressive discount strategy, typically offering 50% or more discounts, so you can likely purchase it for less. As of writing, the Queen Onebed X 12” is priced at $1,200 (50% off). For more pricing information on available sizes, refer to the table below.

King Single$1,900
Double $2,140
King $2,750 

Is Onebed X 12″ Mattress Good For Larger (100kg+) People?

There’s no clear answer on the Onebed X website as to how much weight it holds, but considering the Onebed X 12″ is a firm mattress, heavier people (100kg+) should find the Onebed X quite comfortable to sleep on, providing enough pressure relief and good spinal alignment.

Shipping & Unboxing Of The Onebed X 12″ Mattress

Delivery is free Australia-wide and the Onebed X 12″ Mattress will arrive at your doorstep in a box. Delivery times vary based on your region, but the fastest delivery time is 1 business day.

Although the Onebed X 12″ Mattress is easy to remove from its packaging, we recommend having two people available to unpack it. The mattress comes with a product booklet and a cutting tool, and unpacking the mattress should only take 5-10 minutes. It’s recommended to let the mattress decompress for 24 hours before sleeping on it.

Onebed X Mattress Warranty Information

Every Onebed X mattress comes with a 15 year warranty that covers springs, foams, fabrics, seams and stitches.

Onebed X Trial Period & Returns

Onebed X comes with a 125 night trial. If you don’t love the mattress after 125 nights, you can receive a full refund. Returning the mattress is free and easy – just get in contact with at [email protected] within the first 125 days of receiving your order to arrange a full refund.

My Review After 30 Sleeps

Overall, the Onebed X 12″ offers good support and pressure relief. It was my favourite to sleep on out of the Onebed range. I found it easy to change positions from my side to front and back, and didn’t wake up sore in the morning. If you’re considering switching from memory foam to a hybrid, I’d definitely recommend giving the Onebed X a try. With a 125 night trial to test if it’s right for you, you’ve got nothing to lose.

Onebed Essential Mattress & Onebed Original Mattress

Apart from their flagship product, the Onebed X, the brand offers two other mattress models. Let’s take a closer look at each of them.

Onebed Essential 8”

Priced at half the cost of the Onebed X, the Essential model is an affordable option without compromising on comfort and support. This mattress features a simple two-layered foam design, with the top layer adapting to the body’s contours and the bottom layer providing durable support. Like other Onebed mattresses, the Essential model also offers efficient cooling to ensure comfortable sleep during hot summer nights.

Onebed Original Mattress 10”

The most popular model among Onebed’s offerings, the Original mattress offers customisable comfort through its multi-layered structure. Users can switch the position of the layers to select from firm, medium, and medium-firm support options. Additionally, the mattress is designed to retain its original shape when subjected to weight without affecting the surrounding area, ensuring zero motion transfer during sleep with a partner.

Final Verdict

As a budget friendly hybrid mattress, the Onebed X 12″ is certainly worth a try. With its combination of pocket springs and advanced Gel-Memory foam technology, the Onebed X 12″ provides excellent support, pressure relief, and temperature regulation, all at a great price point.

If you’re keen on knowing more about Onebed X 12″, visit

Looking for mattress reviews in Australia? We’ve got you covered! Our thorough comparisons ensure you find your ideal mattress. Visit for top choices and sleep soundly.


Mattress type
Shipping location
Fastest Delivery
1 day
Warranty period
15 years
125 nights
Price (RRP)
$2,400 (currently $1,200)
Ally Burnie Head Dreamer Ally Burnie
Journalist, presenter and host based in Sydney with a passion for cooking, outdoor adventures, hiking, humanitarianism, and travel.

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