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Published on: 17 August 2021
Enjoy a super-firm feel, plenty of support and wake free from aches and pains. This extra firm, orthopaedic mattress cares for you as you sleep. It's fresh, cool, hypoallergenic and approved by Allergy UK. more info
Distributes weight evenly for excellent body support and pressure relief
Comfortable and great value for money
Beautifully soft and breathable
Specially designed to provide enhanced support and care for your back
Reduces allergens for a cleaner, healthier sleep
This product is scientifically proven to remove common allergens
Our firmest rating. Highly supportive with a very firm, sturdy feel
About 9.1 inches deep
There's no need to flip your mattress over, simply rotate
For your peace of mind
This product supports our economy and helps reduce environmental impact
This product conforms to BS7177: 2008, for use at home
For the highest standards of quality and safety
Sleep well and wake ready to seize the day with the Sealy Activsleep Ortho Extra Firm Mattress!
Part of Sealy's Activsleep range, this super-firm, orthopaedic mattress is a great choice if you love a sturdy feel and plenty of support to care for you as you sleep.
Featuring Sealy's PostureTech Core Support, this high-performance spring system delivers total body support. It helps prevent the transfer of movement across the mattress, so you'll get a completely undisturbed sleep. Durable and resilient, Core Support provides truly extra firm support.
This isn't just a mattress that delivers super-firm support. It feels plush and comfortable too! The smooth, knitted cover envelopes the Ortho Extra Firm and it's hand-tufted to lock in the fillings for enhanced durability.
Working around the clock, a winning combination of Purotex and Adaptive® technology ensures a clean and healthy sleeping environment for you as you sleep.
Infused within the cover, tiny microcapsules containing Purotex probiotics are released - preventing the build-up of nasties like dust mites and bacteria. It's hypoallergenic and approved by Allergy UK, so you can rest easy.
Working in harmony with your body temperature, Adaptive® technology monitors moisture levels to keep you feeling cool, fresh and dry.
As it's a single-sided mattress, you'll never need to flip it over. Instead, simply rotate from end-to-end to keep it in excellent condition.
One of Sealy's firmest and most supportive mattresses, choose the Activsleep Ortho Extra Firm and get the great night's sleep you've been waiting for.
Please note: the cover of your new mattress may be different to the one shown. Don't worry - you'll still get the same great mattress!
Next Day Delivery or Choice of Delivery Day
When in stock, you can receive this product the very next day when ordered before 4pm.
Don't want it tomorrow? No problem! Simply choose a different day in the basket.
Available with the following delivery options:
Free DeliveryDelivered to the door of your building absolutely FREE.
No Need to Wait in all Day!
You will receive your items within a two-hour delivery window.
You will be notified of your time slot the evening prior to your delivery, where possible.
Two Man Delivery +£20Conveniently delivered to the room of your choice.
Perfect for those who are not available during the week.
Costs £17.50 in addition to any other delivery costs.
Delivery is on an all-day service, 7am - 8pm, Monday - Friday.
For further information, please visit our Delivery page.
Please contact us and we'll be happy to help.