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Sealy Chapman Elevate Extra Firm Mattress

Chapman Extra Firm is the most robust offering in the Elevate Collection, crafted for those who favour a firmer, and supportive sleep surface.

Features:

• AlignSupport®
• UniCased®
• Standard Foam ComfortCore®
• Extra Firm & Firm Foams
• SmarTex®
• ProShield®

Use Voucher CodeAUTUMN10for 10% off this item
Estimated delivery: 08/12/2025 - 12/12/2025
Sealy
In Stock In Stock

Free Delivery
Free UK delivery on all orders over £300

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28cm Mattress Depth
EXTRA FIRM Support

The Sealy Chapman Extra Firm Mattress is the most robust offering in the Elevate Collection, crafted for those who prefer a firmer and more supportive sleep surface.

It features Sealy’s patented AlignSupport® springs, developed to provide long-lasting, dependable support. AlignSupport® is a two-stage spring system that begins by sensing the sleeper’s shape as they settle into a comfortable position. It then delivers deep, consistent support that feels personal and reliable. The spring unit is twice tempered, proven to be twice as resilient, and built to withstand daily use throughout the mattress’s lifetime.

Surrounding the spring unit with interlocking keys is the UniCased® edge support system. These keys are precisely engineered to connect with the springs, securing the structure and enhancing stability. Designed by Sealy’s team of experts, UniCased® offers a larger usable sleep surface, helping to eliminate any “rolling off” sensation and providing dependable durability year after year.

Underpinning the entire mattress is BasePlank, a unifying foundation that provides consistent structure from corner to corner. Multiple air channels allow the mattress to breathe and promote effective airflow.

The foam ComfortCore® is positioned in the centre third of the mattress and is designed to target the hips and lower back, delivering tailored pressure relief. By combining firm and extra firm foams, the Chapman Extra Firm mattress offers a robust, extra firm feel that suits sleepers who prefer maximum support.

The technology is complemented by a premium-quality fabric that has been expertly designed and tested to create a look that is distinctly Sealy Posturepedic. The fabric is woven with SmarTex® to disperse heat away from the skin and help regulate temperature throughout the night.

In addition, ProShield® technology helps protect against allergens and works to keep the mattress clean and fresh throughout its lifespan. It is also endorsed by Allergy UK.

Handmade in Britain and backed by Sealy’s 7-year guarantee, Chapman Extra Firm is more than a mattress. It is a foundation for better sleep, built with integrity and designed to last.

28cm Mattress Depth
EXTRA FIRM Support

We won’t’ be beaten on price!

Did you find a better price somewhere else? We’ll gladly price match the competition.

And of course, by shopping with us you get the benefit of our expertise.

Price Match conditions:

1. Our Price Promise applies to any competitor in the mainland UK, including UK websites but excluding factory outlets, membership clubs, duty free shops, home shopping channels, other auction sites, market stalls, private sales and liquidation (or any other “closing down” or insolvency) sales.

2. The product must be new, identical in style, specification, size and colour, and offered on the same terms.

3. The competitor store or website must have the product in stock and available for immediate purchase or delivery.

4. Gift vouchers, voucher codes and cash back are exempt.

5. Typographical errors shall not apply. No affiliate, promotional, voucher code or media discount applies. Any other retailer’s price match promotion which offers an additional rebate or other benefit for any price matched product is also excluded.

6. We must be able to verify the competitor’s price and stock position to our satisfaction.

7. The price being matched must include all taxes (including VAT), postage and packing charges as applicable.

8. All Price Promise transactions are carried out at our discretion.

9. We reserve the right to withdraw this Price Promise at any time.

Additional information

Size

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28cm Mattress Depth
EXTRA FIRM Support

PLEASE ENSURE THAT YOU PROVIDE US WITH A DAYTIME TELEPHONE NUMBER AS WE NEED TO CALL YOU TO ARRANGE YOUR DELIVERY

If your item is in stock you can have this delivered on a FREE next working day delivery if ordered before 4pm or alternatively choose another day that suits you if that is not convenient*

For all large items, we can arrange a 2-man room of choice service with the items unpacked if required and all packaging removed. Please contact us for further information.

Our delivery partner will contact you the evening prior to your chosen day of delivery with a 2 hour time slot and a further call is made on the delivery on the day itself.

Please note that if you require our Remove & Recycle or disposal service, we cannot offer next-day delivery. Please contact us for further information.

For single mattresses (2’6 or 3′), Vacuum packed or rolled mattresses and smaller items such as pillows we also offer a next day service but this is a one man delivery to the door only.

Orders placed after 4pm will be available for delivery within 2 working days.

Deliveries are made Monday to Friday as standard, a Saturday delivery is available on either the one man or two man service for an additional £30.00

If the item is not available from stock or is made to order there are delivery lead times on the specific product. Once the item is available for delivery we will contact you to arrange a convenient day.

Please note that the delivery price stated (where applicable) is for Mainland UK only.

Delivery to Scottish Highlands, Grampians, Southern and Northern Ireland, Isle of Man and the Isle of Wight is available but will incur additional delivery charges.

Additional services such as assembly is available on certain items. We are here to help so please contact us for further information or alternatively call (0800) 614 172 or (01529) 301919

Mon – Sat 9am-5.30pm Sun 10am-4pm.

*certain product categories are subject to a minimum order value of £299.00

28cm Mattress Depth
EXTRA FIRM Support

Understanding that reliability and peace of mind are vital to our customers, we provide a comprehensive manufacturer’s guarantee on all our mattresses, upholstered beds, and headboards.