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Features you'll love

Support System

Open Coil Springs

Lattice shaped high tensile steel springs give a traditional, durable support.

Comfort Fillings

Soft White Fibres

100% polyester offers great recovery and durability, meaning long-lasting comfort.

Firmness

Extra Firm

The firmest level of support. Also known as orthopaedic.

Natasha Bennett

Sales Training Development Manager, Sealy

What the Sleep Expert thinks...

"Engineered for serious orthopaedic support, the Ortho Plus Bronze couples PostureTech CoreSupport springs with an extra‑firm comfort layer to keep the entire spine level. EdgeGuard inserts reinforce the border, so every inch feels solid and stable, making it ideal for back‑pain sufferers who like to lie perfectly on top of their mattress rather than sink into it."

Description

The Sealy Ortho Plus Bronze Mattress is an Extra Firm design that’s specifically intended for those who require a considerable amount of support to get a comfortable night’s sleep. It utilises the PostureTech COre Support spring system, EdgeGuard reinforcing technology and a PowerPack core to ensure you benefit from total luxury and enjoy an uninterrupted night. Handmade by Sealy’s expert craftspeople in the company’s Cumbria workshop, it represents excellent value for money and your investment is protected by a no-fuss, five-year warranty.

Your Sealy mattress benefits from a luxury finish, using the finest fabrics and latest construction tools and techniques. You’ll also get a five-year guarantee with your mattress, so you’re protected should anything go wrong.

PostureTech Core Support and EdgeGuard Technology

The Bronze Mattress’ first-rate support and world-class comfort are achieved by combining a range of innovative technologies. At the heart of the product is the PostureTech Core Support spring system, which is designed to respond to changes in your nighttime position and target support where you need it most. That allows it to relieve pressure and prevent aches and pains. Each spring in the system also benefits from an EdgeGuard high-density foam insert. These are placed within the spring, strengthening the mattress at the edges and extending the springs’ lifespan.

Extra Firm Feel

The mattress’ Extra Firm rating means it’s particularly beneficial for sleepers who regularly wake with aches and pains or who struggle with a sore back in the morning. The support the Bronze is able to provide is further enhanced by the PowerPack at its core. It works together with the PostureTech Core Support system to ensure the lumbar region is comfortable and safely aligned, reducing the likelihood of morning discomfort.

Double-sided

The Ortho Plus Bronze Mattress is a double-sided design, which means it can be flipped to balance use and further increase its lifespan. The mattress is hand-crafted by skilled artisans in the Sealy workshop, so quality is always guaranteed.

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Features

PostureTech CS Springs

The unique PostureTech springs respond to your body weight to provide deep down support. As your body relaxes into the mattress and pressure is applied, the springs target the key areas of your body to offer support where you need it most. Not forgetting, the springs are twice tempered, making them resilient and trustworthy over time.

Soft White Fibres

Soft white fibre fillings which are made from 100% polyester. This type of mattress filling offers great recovery and is very durable, which means long-lasting comfort.

28cm Depth

This mattress is approximately 28cm deep.

Knitted Cover

This luxurious soft knitted cover is breathable, which helps to keep the sleeper at an even temperature all night long.

Orthopaedic Support

Designed to offer a firmer sleep surface, providing targeted support for your back and joints.

Reinforced Edges

The mattress has reinforced edges, so that the full sleep surface can be used. This means more sleeping space - which is usually lost in conventional, less edge-stable mattresses.

No Roll Together

Individual personal sleeping zones mean that you won't be disturbed if your partner rolls or moves, as you won't feel their motion. There's also no tendency to roll towards the middle of the mattress.

Turning Handles

Flag-stitched handles are attached to the sides of the mattress to assist in turning or rotating.

Turnable

The mattress has fillings on both sides. Double-sided mattresses need to be turned regularly to keep them in good condition.

Hand Tufted

Tufts help to secure the luxury fillings in place, helping the mattress retain it's fullness and plumpness over time.

Flat Mattress

This mattress will arrive flat, not rolled and boxed.

Made in the UK

This item has been manufactured in the UK.

Additional features

Made by an NBF-Approved ManufacturerPeace of mind and reassurance - the manufacturer of this item is an approved member of the National Bed Federation.

Benefits

Centred on the PostureTech Core Support spring system for a truly comfortable sleep
Employs EdgeGuard technology to provide all-over support
Integrated PowerPack results in extra firmness and better lumbar support
Extra Firm rating makes it ideally suited to restless sleepers who regularly wake with aches and pains
Double-sided and tufted on each side - so you can flip and rotate for added longevity
Handmade in the UK and shipped with a five-year guarantee for your security

Up to 33% off

Expert Approved

You've got the best price

As Online Bed Retailer of the Year 2025 - 2026, you can trust us to get you the best price. With our fast delivery and exceptional service, you won't find better elsewhere.

Sealy Ortho Plus Bronze Mattress

4.6 out of 5

5 Star (39)

4 Star (5)

3 Star (2)

2 Star (0)

1 Star (2)

Experience restful nights with superior support to ease aches and ensure alignment.

PostureTech CS Springs

Soft White Fibres

28cm Depth

Firmness: Extra Firm

£299

RRP £449

Save £150

from £299

Size

Single 3' x 6'3"

£299 RRP £449

Only 3 left

Small Double 4' x 6'3"

£419 RRP £539

Only 1 left

Double 4'6" x 6'3"

£369 RRP £539

In stock

King Size 5' x 6'6"

£399 RRP £599

3-5 Days

Super King 6' x 6'6"

£519 RRP £779

3-5 Days

Super King Zip & Link 6' x 6'6"

£689 RRP £899

2-3 Weeks

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Description & Features