• Universe Bed Co. Diamond Sky Plush King Mattress DS12KG

    • Australian Made and Owned
    • Australian Bedding Stewardship Council
    A.H. Beard Domino Antwerp Firm Queen Mattress DOANTFMQUE hero image
    A.H. Beard Domino Antwerp Firm Queen Mattress DOANTFMQUE
    4.8 from 4 reviews
    • Overview
    • Specifications & manuals
    • Reviews
    • Legendary service
    • Delivery, services & returns
    • Questions & answers

    Overview

    When you have a great night of sleep, the sky’s the limit. And the Diamond Sky King Mattress is a perfect way to maximise your rest with deep, undisturbed slumber. Part of the Universe Bed Co range, you can experience out-of-this-world comfort with this premium sleeping solution.

    Thoughtfully designed to provide unmatched support from top to base, the Diamond Sky has three layers of foam to ensure even weight distribution, targeted support for your body, and firmness that feels just right. The gel and charcoal-infused foam layer provides a hygienic and odour-free environment, so you can rest easy every time. To top it all off, this mattress features a Coolmax cover that helps regulate heat, so you can blissfully stay asleep. This cover can be removed for extra cleaning convenience and can be securely zipped back up with ease.

    Regardless of how busy your day gets, you can always come home to your sleeping sanctuary with the Universe Bed Co Diamond Sky mattress.
    Maximum support with premium foam

    The Diamond Sky mattress features an extra thick 5cm latex-like foam with a 45D density. This gives your body additional support where you need it most, so you can enjoy a more restful night of sleep.

    All-night comfort with charcoal-infused layer

    The gel and charcoal-infused foam layer helps to reduce odours, while regulating temperature and moisture throughout the night. This 5cm thick, 35D density foam also perfectly contours to your body, resulting in a cosy and comfortable sleep.

    Sturdy base foam

    The two upper layers are supported by a durable 15.5cm base foam with a 25D density. This resilient base offers even weight distribution, cradling you to sleep and ensures you wake up feeling refreshed.

    Removable Coolmax cover

    The Coolmax cover has a unique cooling layer engineered to wick away moisture and disperse heat. This keeps the temperature comfortably consistent while you sleep so you don’t wake up feeling the heat. This cover is removable for effortless maintenance.

    Specifications & manuals

    key Specifications
    Brand
    Universe Bed Co
    Australian Designed and Owned
    Finish Colour
    White
    Width (mm)
    1830 mm
    Depth (mm)
    300 mm
    Length (mm)
    2030 mm
    Model Number
    DS12KG
    Weight (kg)
    36 kg
    Image Disclaimer
    Mattress shown in image is a Queen size mattress. Actual product may differ from product shown due to different dimensions.
    Mattress Size
    King
    Mattress Feel
    Plush
    Notes
    Please note this product arrives vacuum packed in a box for easy installation.
    warranty
    Manufacturer Warranty
    1 Year
    mattress Details
    Suitable for Adjustable Bed Base
    No
    other Features
    Bedding Type
    Mattress

    Reviews

    Rating snapshot

    5
    1
    4
    1
    3
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    2
    0
    1
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    Average customer rating

    Overall
    4.5
    Ease of setup
    3.0
    Build quality
    5.0
    Value of product
    5.0

    Appliances Online's customer reviews are independently managed by Bazaarvoice, ensuring their accuracy and honesty. Vouchers are sometimes offered to verified buyers in exchange for their unbiased review.

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    Pros
    1-2 of 2 reviews
    Glenn2022-01-18
    I'm sleeping better so that's a good sign
    It's only been a couple of weeks since we purchased this mattress but I'm sleeping well on it so that's a good sign. It's pretty comfortable (more so than the last mattress which was a traditional spring mattress that cost more than 3 times as much). The only issue I have with this purchase is that I didn't notice anything (maybe because there was nothing) about the fact you need to not use it for 72 hours after unboxing... when you don't know about this and your old mattress is now gone... ummm, floor maybe?
    Build quality
    5.0
    Ease of use
    3.0
    Value of product
    5.0
    Kasette2021-11-12
    Value for Money Very comfy mattress
    After sleeping on our 6 year old mattress from a well known brand store that cost several thousand, we decided to upgrade to this. It is quite soft, and we find it very comfortable. For the price, I wouldn't care if I had to upgrade every few years. You will not go wrong with it. Super fast delivery also, and they took old mattress away. Fabulous product and service.
    Value of product
    5.0

    Legendary service

    The Appliances Online Net Promoter Score (NPS) is based on feedback from 89,897 people, collected between August 2024 to August 2025. Learn more about the Net Promoter Score (NPS).
    The lowest delivered cost
    Neil, Salamander Bay, NSW
    On time and drivers friendly
    Alex, Kelvin Grove, QLD
    Thank you so much
    Merilyn, Morningside, QLD

    Delivery, services & returns

    Appliances Online is all about legendary service. We offer free next business day delivery, free connection, free removal and free recycling, and we even offer Saturday delivery and, in some locations, a Premium Delivery option that allows you to choose your own 2-hour delivery window.

    Questions & answers

    Just wondering if this mattresses has springs inside!?? Arun · 2021-10-26
    Good Afternoon, Thank you for this product question, No inner springs, foam mattress. I hope this information will assist you when shopping here with us at Appliances Online. Colin Jones, Appliances Online
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