• Sealy Posturepedic Sophia Flex Plush King Mattress - 735566

    $3,958
    $1,353 (25%) off RRP of $5,311
    $1,353 (25%) off RRP of $5,311

    Sealy Posturepedic Sophia Flex Plush King Mattress - 735566

    $3,958
    $1,353 (25%) off RRP of $5,311
    $1,353 (25%) off RRP of $5,311
    Add to Wishlist
    Up to 6 months interest free with Zip Money
    Size: King
    • Overview
    • Specifications & manuals
    • Reviews
    • Legendary service
    • Delivery, services & returns
    • Questions & answers

    Overview

    The Sealy Sophia Luxury Flex mattress range offers the ultimate luxury: a deep, restful night of sleep. With its premium LuxeTop construction and Luxury Plush feel, you’ll feel like you’re sleeping on a cloud.

    Tried-and-tested comfort technologies and advanced support systems provide the perfect harmony between relief and relaxation. The SmarTex fabric regulates temperature, the HealthShield maintains a hygienic surface, while the premium wool fibre promotes breathability to create the ideal sleeping environment.

    Proper sleeping posture is essential and you’ll feel supported by the state-of-the-art Titanium RestSUPPORT to maximise stability and balance. In addition, the combination of supersoft foam and quilt layers provide outstanding pressure-relieving comfort so you wake up every morning feeling refreshed.

    This mattress is designed with FlexiCased edge technology with an articulating perimeter to pair with Sealy’s adjustable bed bases including Energise and Inspire. Or create the bedroom of your dreams with Sealy’s SpaceSaver Drawer Base and Endurance Luxe Base.
    Titanium RestSUPPORT

    This revolutionary three-stage coil system supports your body with perfect balance, helping to ensure a restful night of sleep. Engineered for durability, you can enjoy long-lasting sleep to help your mind and body rejuvenate each night.

    Convoluted Supersoft quilt layer

    Designed to provide exceptional pressure relief, this mattress has a deeply contoured, high-density supersoft layer that offers maximum comfort while you sleep.

    Deep Supersoft Foam comfort layers

    Experience a deep, luxurious night of sleep thanks to the Deep Supersoft Foam layer. Designed with the Durabond Insulator to perfectly bring together the comfort layers and support system, this mattress provides long-lasting comfort.

    ComfortCore Plus

    Help keep lower back discomfort at bay. Enhanced with ComfortCore Plus, this mattress has a densified memory foam and gel infused visco-elastic layers to adapt and conform to your lower back, relieving pressure so you wake up feeling your best.

    Specifications & manuals

    key Specifications
    Brand
    Sealy
    Height (mm)
    240 mm
    Width (mm)
    1835 mm
    Length (mm)
    2030 mm
    Weight (kg)
    46 kg
    Australian Designed and Owned
    Mattress Size
    King
    Mattress Feel
    Plush
    Notes
    Please note: Mattress only, accessories & base in this product's images are for illustrative purposes only. Mattress pictured may be representative of another size for display purposes.
    warranty
    Manufacturer Warranty
    10 Years
    mattress Details
    Single or Double Sided Mattress
    Single Sided
    Mattress Cover Material
    Premium Wool Fibre Blend
    Special Internal Layers
    3 Stage Titanium RestSUPPORT™
    Zone Support
    Individual 'Sense & Respond' coil technology
    Edge Support
    FlexiCased® Edge
    Suitable for Adjustable Bed Base
    Yes
    other Features
    Bedding Type
    Mattress
    Features
    Premium Wool Fibre Blend
    Luxury Foam
    SmarTex®
    3 Stage Titanium RestSUPPORT™
    Gel Visco Material
    Individual 'Sense & Respond' coil technology
    FlexiCased® Edge
    Health Shield
    country of Origin
    Origin
    Australia

    Reviews

    Rating snapshot

    5
    9
    4
    1
    3
    0
    2
    0
    1
    0

    Average customer rating

    Overall
    4.9
    Ease of setup
    4.9
    Build quality
    4.8
    Value of product
    4.8

    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.

    Learn more about Bazaarvoice Authentic Reviews Trust Mark
    Pros
    1-3 of 10 reviews
    David2025-07-21
    Can feel the springs in it
    Lost a star for being able to feel the springs from the first use - admittedly we have always been 'the princess and the pea' types and able to feel the least littlest thing like a crease in the sheets. Have had to buy a nmattress topper to avoid this issue. Maybe it's not as bad when not paired with the adjustable bed, but seeing as we did - yes we can feel all the springs. Otherwise it's a nice sturdy mattress, but the top should feel a little more padded for the price you pay.
    Build quality
    4.0
    Ease of use
    5.0
    Value of product
    4.0
    Camila2025-06-01
    Very comfortable
    I’m happy with the purchase, this mattress has the right balance of firmness and softness.
    Ease of use
    5.0
    Value of product
    5.0
    Coco2025-03-19
    Very happy customer
    I am so happy with my new mattress and the great service I have received from Appliances Online. I received my delivery yesterday which went perfectly. I had included the option to have my old mattress taken away which I highly recommend if needed. Last night I slept on my new mattress which feels comfortable and supportive (the plush feel doesn’t take away from the much much needed support my back has been desperately needing). I previously had a Sealy Posturepedic which lasted me 16 years. This mattress is well built and I feel confident that it will last me over a decade. I can highly recommend Sealy mattresses and Appliances Online to all.
    Build quality
    5.0
    Ease of use
    5.0
    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).
    So helpful
    Rosemary, St Kilda East, VIC
    I am happy and very impressed with the excellent service
    Julie,
    I will be buying from you again next time
    Courtney,

    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

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    We're here to help 24/7 - for an immediate answer to your question, chat with one of our Live Chat agents below or call us on 1300 000 500 .

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