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Comfort trial

Comfort fillings
Firmness rating

Support system
Posturepedic AlignSupport™ springs plus sumptuous layers of pressure relieving memory foam equals an unparalleled medium-firm sleep experience. Topped off with a plush quilted surface.

Sealy's unique Posturepedic coil spring support system is specifically designed to perfectly align your spine by sensing and responding to your body weight. The twice tempered springs never lose their responsive nature.

Memory foam creates a cushioned feel by cradling to your unique shape. Enhancing the remarkable comfort, the foam has a sumptuous feel, delivering a cosy sleep.

Durable edge-to-edge support provides a maximised sleeping surface for a more secure sleep. Sit and lay comfortably right to the very edge with zero 'roll-off' sensation.

Offering a soothing night's rest by evenly distributing your body weight across the mattress. The pressure point relief provides the ultimate relaxation needed for a deep slumber.

Free of allergens for a cleaner, healthier sleep. No allergenic materials were used so you can enjoy an undisturbed rest without the risk of allergy reactions or respiratory problems.

A sumptuously soft finish that provides additional cosiness and warmth. Knitted covers enhance airflow and are incredibly breathable. So, you can enjoy a cooler snooze.
Firmer than a medium mattress for extra support

About 11.8 inches deep. Depth is an important factor when buying a mattress as it can affect the suitability for particular bedding, mattress toppers and bed frames.

With a single-sided mattress, there's no need to flip. Simply rotate every few months to care for your mattress. Fuss free mattress maintenance!

For your peace of mind

Expertly handcrafted in the UK. This product helps to support our economy and helps to reduce environmental impact.

This product conforms to BS7177: 2008, for use at home

This product is scientifically proven to remove common allergens

For the highest standards of quality and safety
Experience top-quality support and sumptuous memory foam comfort.
Posturepedic support
Sealy's unique AlignSupport® spring system has elevated the Posturepedic range to another level of support. The spring starts by sensing your shape as your body relaxes into the mattress. It then follows up with deep down, consistent support that you can count on throughout the lifespan of the mattress.
Like anything in life, we all need firm foundations and Sealy's BasePlank is exactly that! It underpins the entire mattress, working with the AlignSupport® spring system to provide true support.
It's the key
Encapsulating the open spring system is Sealy's patented UniCased™ XT edge technology. The key-like structure of the unique edge support is interwoven with the springs to give a sturdy edge. This reduces movement of the mattress fillings and creates an edge-to-edge supportive surface. Now you can sit or sleep right to the edge with no sag.
Added support
A MemorySense® Comfort Core™ sits in the centre third of the mattress to give added support to your lower back and hips. Developed with the International Orthopaedic Advisory Board based on scientific research.
A combination of foam comfort layers are stacked with precision, with the softest at the top, getting firmer towards the centre. This layering allows each layer to form to your body shape to offer the correct level of pressure relief.
Medium Firm
The premium layer of InfiniLux™ foam gives this mattress its perfect medium-firm feel. Designed to be durable and resilient for longevity, so you can enjoy Posturepedic comfort night after night.
Allergy-friendly
The premium feel knit fabric cover doesn't just look sleek, it's backed by science as well. The SmarTex™ technology helps to disperse heat away from your skin to keep you cool all night. The ProShield® treatment is hypoallergenic for a sneeze-free slumber. Endorsed by the experts at Allergy UK.
Quilted comfort
The plush quilted comfort top makes the Webber single-sided. So you will never need to flip your Posturepedic mattress, simply rotate using the four built-in turning handles.
Quality confidence
Designed and developed alongside the Orthopaedic Advisory Board, all Sealy mattresses are made in the UK to exacting standards. Every aspect of your new mattress has been carefully considered to make sure it is 100% recyclable at the end of its use, with no parts going to landfill. All backed by a 7 year Guarantee.
Weights: Single: 23kg, Double: 33kg, King Size: 39kg, Superking: 46kg
This mattress comes with a 60-Night Comfort Trial - like all of our mattresses!
The trial lets you test your mattress for up to 60 nights. If it's not quite right for you, you can exchange it for a new one.
It can take some time to get used to a new mattress, which is why we ask you to sleep on your mattress for 30 nights. If you're not happy with the feel after 30 nights, simply contact our Customer Service Team, and we'll arrange a mattress exchange.
| Firmness | Medium to firm |
| Comfort fillings | Memory Foam |
| Support system | AlignSupport Coil Springs |
| Edge support | Yes |
| Cover | Knitted cover |
| Allergy care | Hypoallergenic |
| Pressure relief | Yes |
| Single-sided | Yes |
| Guarantee | 7 years |
| Awards & accreditations | Handcrafted in the UK, Approved by Allergy UK, Approved by the National Bed Federation |
| Fire resistance | Conforms to BS7177: 2008, for use at home |
| Downloads | Sealy Product Care and Guarantee |
| Size | Width | Length | Depth |
|---|---|---|---|
| Single | 90cm | 190cm | 30cm |
| Double | 135cm | 190cm | 30cm |
| King Size | 150cm | 200cm | 30cm |
| Superking | 180cm | 200cm | 30cm |
Please allow for a tolerance of +/- 2cm
The following delivery methods apply to mainland England and most of Scotland, Wales and Northern Ireland. Please read our delivery page for more information.
Next day delivery (weekdays only) Order before | FREE |
Weekday of your choice Order up to 60 days ahead | FREE |
Weekend On Saturday or Sunday of your choice | £17.50 |
Delivery to the front door of your building Free upgrade for Double, King Size and Superking to your room of choice | Yes |
Two-hour delivery time slot We’ll let you know on the day before your delivery | Yes |
Call to let you know we’re on our way On your delivery day | Yes |
Delivery to your room of choice Free upgrade for Double, King Size and Superking | £20.00 |
Mattress recycling We'll take away your old mattress | £35.00 |
Delivery is on an all-day service, 7am - 8pm for mainland England and most of Scotland, Wales and Northern Ireland.
Need further information? Please visit our Delivery page.
Great product and service
Verified Purchase
Comfortable and brilliant for my husband’s bad back
Verified Purchase
Extremely comfortable. Very happy with the purchase
Verified Purchase
The mattress is comfortable, firm and feels very good quality. We have been able to sleep very well since using our new mattrass.k
Verified Purchase
Best nights sleep I have had in years.
Verified Purchase
Good quality well made product
Verified Purchase
Great mattress for back problems
Verified Purchase
Good Points: Looks good feels good. Improvement Points: The only reason for not giving 10/10- only bought this a month ago. For me to give a 10 I'd like to see this mattress last at least 3-4 years first. We bought a mattress well known brand of a girl's name, was great then after year and a half something happened to it.. it sank a little and just wasn't as comfortable as before.
Verified Purchase
This review contains a rating only; no comment was left by the customer.
Verified Purchase
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Sunday: 10am - 4pm
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Sunday: Closed
customerservice@mattressonline.co.uk