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| Support | PostureTech Core Support Springs |
| Comfort | Soft White Fibres |
| Firmness | Extra Firm |
| Depth | 29cm deep |
| Comfort Trial | 60 Nights |
PostureTech Springs are zoned to give firmer support to heavier areas and softer support where needed.
PostureTech CoreSupport Springs firm up under pressure, supporting your spine and hips to relieve built-up pressure.
The twice-tempered PostureTech CoreSupport Springs enhance durability, providing lasting support and helping the mattress retain its shape.
The PowerPack layer is formed from durable recycled polyester fibres to offer extra support and a firmer feel.
Sealy's Edge Guard reinforces the mattress border with sturdy foam, letting you sleep to the edge and enjoy more space.
Designed for solid support, the firmer feel promotes better sleep posture and eases aches and pains.

The PostureTech Core Support Spring unit, unique to Sealy, is zoned in key areas across the spring unit to provide consistent, firm support to your shoulders, spine, lower back and hips.
The core spring system is secured in place by sturdy foam blocks around the perimeter to increase stability and provide a firmer edge that ensures a maximised sleep space with zero 'roll off'.
Exclusive to Sealy and made from recycled polyester fibre, the powerpack layer is highly durable, providing cushioned comfort and lumbar support with an extra firm orthopedic feel.
Mattress layers are secured together with a traditional tufting technique to reinforce a firmer feel, increase stability and extend the lifespan of the mattress.
| Mattress Features | Value |
|---|---|
| Firmness | Extra firm |
| Comfort fillings | Soft White Fibres |
| Support system | PostureTech Core Support Springs |
| Back care | Orthopaedic support |
| Edge support | Yes |
| Cover | Damask cover |
| Turning handles | Yes |
| Double-sided | Yes |
| Guarantee | 5 years |
| Awards & accreditations | Handcrafted in the 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 | Weight |
|---|---|---|---|---|
| Single | 90cm | 190cm | 29cm | 22kg |
| Small Double | 120cm | 190cm | 29cm | 29kg |
| Double | 135cm | 190cm | 29cm | 33kg |
| King Size | 150cm | 200cm | 29cm | 38kg |
| Superking | 180cm | 200cm | 29cm | 45kg |
| Superking Zip and Link | 180cm | 200cm | 29cm | 46kg |
Please allow for a tolerance of +/- 2cm
We deliver across the UK, with some remote areas offering alternative delivery options. Enter your postcode below to check which delivery options are available in your area.
Enjoy fast, reliable UK delivery with a delivery time slot confirmed on the morning of your delivery, live tracking and drop-off at your front door - or building entrance if you live in an apartment.
| Weekday Delivery | free |
| Saturday & Sunday Delivery | £17.50 |
| Delivery to a Room of Your Choice Free upgrade for King Size, Superking and Superking Zip and Link sizes. | £20.00 |
| Mattress Recycling We'll collect your old mattress and recycle it when we deliver your new one. | £35.00 |
Living in an apartment or remote location? Click here to see further details.
Try this mattress at home for 60 nights with our free Comfort Trial. If it's not quite right, you can exchange it easily.
When does the trial start? - Your 60-night Comfort Trial starts the day your new mattress arrives.
What do you need to do? - Sleep on your new mattress for at least 30 nights, using a mattress protector. This gives your body time to adjust and allows the mattress to settle.
How do you exchange? - After 30 nights, if it's not quite right, simply get in touch to exchange it for another mattress of the same size - we'll collect your old one when we deliver the new.
Want to upgrade? Simply pay the difference.
If you choose a lower-priced option, the original cost will stay the same.

Mon-Sat: 9:30am - 5:30pm
Sunday: 10am - 4pm
Mon-Sat: 9:30am - 5:30pm
Sunday: 10am - 4pm