Sealy Tredwell (Extra Firm)Mattress

Sealy Tredwell (Extra Firm) - Mattress Description

Tredwell Extra Firm is the firmest feel in the Elevate Ultra Collection, crafted for those who prefer a truly supportive, grounded sleep. Combining intelligent sleep technology with advanced comfort layers, it delivers deep, consistent support that adapts to your body for a more restorative night’s rest.

At its core is Sealy’s patented AlignSupport® spring system, designed to sense your shape and respond with tailored, long-lasting support that helps maintain natural posture and skeletal alignment. Reinforced with UniCased® XT edge support, the mattress offers a stable, edge-to-edge sleep surface with no “roll-off” feeling, while enhancing airflow for a fresher sleep environment.

Comfort is carefully balanced with durability. Targeted pressure relief comes from the MemorySense® ComfortCore®, focused on the hips and lower back, while gel-infused and extra firm foam layers provide breathable, long-lasting comfort. Finished with a luxurious quilted surface and soft-touch fabric, Tredwell also features SmarTex® technology to regulate temperature and ProShield® protection for a cleaner, more hygienic sleep.

Handmade in Britain and backed by a 7-year guarantee, Tredwell Extra Firm is built to deliver reliable performance night after night.

Key Features:

• Extra firm feel – ideal for those who prefer strong, supportive comfort
• AlignSupport® coil system – two-stage response for personalised support
• UniCased® XT edge support – maximises sleep surface and prevents roll-off
• MemorySense® ComfortCore® – targeted pressure relief for hips and lower back
• Gel-infused foam – breathable comfort to help regulate temperature
• BasePlank foundation – enhances airflow and long-term durability
• SmarTex® fabric – helps maintain a cool sleeping environment
• ProShield® protection – guards against allergens for a fresher sleep
• Quilted, soft-touch cover – adds a layer of luxury and comfort
• Four vertical handles – easy to move and position
• Handmade in Britain with a 7-year guarantee

Please contact us for a price for this model. Available to order in all standard sizes.

Products on display at our Upminster store change over time. Please contact us to make sure an item you want to view is currently on display.

All sizes given are approximate. Colours shown in images and swatches are only representative and due to limitations of presenting online may not match the actual colour exactly.

To find out delivery cost for this product please enter your postcode into the box below and click 'check delivery cost' you will then be given a cost for delivery to your area.

Any questions regarding delivery please view our delivery information here or call us on 01708 255300.

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Please allow an extra 5-14 days for delivery from us receiving your items. Lighting orders are typically delivered within 48 hours.

Premier Delivery / Premier Beds Delivery

Available nationwide from £89 (Beds from £59) and this includes:

• Door to door service from a highly trained team
• Items to be placed in room of your choice
• All items are unwrapped and rubbish removed if required

Items requiring assembly and or installation will incur an additional fee.

Home Decor Free Delivery

• Items in stock despatched next day by courier service Monday - Friday. 
• Estimated total delivery time is 1-4 days from dispatch. Items may arrive without prior notification.
• Stock levels may not always be updated in real time. If an item you've ordered is out of stock, we'll notify you as soon as possible.

Drop Off Delivery 

• Available to our local delivery area with a charge of £39
• Item delivered directly to your door, so you can sit back and relax.
• This service is for small items

Collections Warehouse & Store

• Collect selected items at our warehouse with an appointment
• Our team will have your item ready for when you come to collect
• Collections for smaller items such as rugs/mirrors/pictures/soft furnishings at our Store can also be made.