Free min 5 year guarantee
On beds, mattresses & furniture
0% APR interest free credit*
On orders over £500
300,000+ reviews
National Bed Retailer of the Year
2025-2026
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Sealy

Sealy Columbia Ortho Extra Firm Mattress

B00000308

  • PostureTech Core Support spring system - deep down pressure relieving support, the springs gradually get firmer as pressure increases
  • Luxury Belgian Damask Cover - soft, breathable and durable sleeping surface
  • Central zoning PowerPack – gives additional support and pressure relief to your hips and lower back
  • Smartex® fibres – helps regulate body temperature, keeping you cool and dry
  • ReNew Fibres - a highly durable, eco-fibre that improves airflow and offers greater breathability, made from 76% recycled PET plastics
  • ProShield® – a natural treatment in the fabric to keep allergens at bay. Endorsed by Allergy UK
  • EdgeGuard – for added durability, reduces roll-off, and optimises the sleep surface all the way to the edge of the mattress
  • Hand-tufted – for a supportive feel
  • Easy care non-turn mattress – simply rotate regularly, in line with the care guide instructions
  • Mattress height – 27cm
  • Comfort rating – Extra Firm (also available in Firm as the Sealy Columbia Ortho Firm Support)
  • Free 5 year guarantee – for peace of mind
  • Made in the UK – exclusively for Bensons for Beds

Designed for sleepers who need maximum support, the Sealy Columbia Ortho Extra Firm Mattress delivers a robust, stabilising sleep surface that helps to promote healthy spinal alignment night after night. Made in the UK exclusively for Bensons for Beds, this orthopaedic mattress is ideal for those who prefer an ultra-firm feel with advanced pressure relief.

At the heart of the mattress is Sealy’s PostureTech Core Support spring system, engineered to provide responsive support. The springs progressively firm up as pressure increases, helping to evenly distribute weight and reduce strain across the body. Enhanced further by the central zoning PowerPack, extra reinforcement is focused on the hips and lower back as these areas can benefit most from additional support in an extra firm mattress.

The sleeping surface is finished with a luxury Belgian damask cover, offering a smooth, breathable and hard-wearing feel. Smartex® fibres actively help to regulate temperature, drawing away excess heat and moisture to keep you cool and dry throughout the night. Inside, ReNew fibres, made from 76% recycled PET plastics, improve airflow and breathability while providing a durable and more sustainable comfort layer.

For a cleaner sleep environment, the fabric is treated with ProShield®, a natural anti-allergen treatment endorsed by Allergy UK, helping to protect against allergens and promote healthier sleep.

Built to last, EdgeGuard technology strengthens the mattress edges, reducing roll-off and maximising the usable sleep surface from edge to edge. The mattress is hand-tufted for a firmer, more supportive finish and features an easy-care non-turn design, requiring simple regular rotation in line with the care guide.

With a 27cm depth, an extra firm comfort rating, and a free 5-year guarantee* for added reassurance, the Sealy Columbia Ortho Extra Firm Mattress is a dependable choice for those seeking uncompromising support and long-term comfort.

Also available in a firmer-but-gentler feel as the Sealy Columbia Ortho Firm Support Mattress.

*T&Cs apply.

Delivery

  • £10 for orders that under £100.
  • £49 for orders over £100 with 1 item in the basket.
  • £69 for orders over £100 with 2 or more items* in the basket.

*excluding services such as recycling.

Delivery is Monday to Friday from 7am, you will be notified of your 2hr delivery window in the afternoon 3 days prior to delivery.

  • We deliver your order to the room of your choice and will walk the route beforehand, to consider any items we may need you to move.
  • Our delivery crews will always wear overshoes in your home and wear gloves during the delivery.
  • We will recycle any packaging that has been removed, if you want us to.
  • Our delivery crew will give you a business card with their names on it and details about our feedback survey.

Read more about delivery

 

40 Night Comfort Guarantee

We know it takes a while to get used to your new bed. So if after 5 nights you don’t find your bed totally comfy, we’ll exchange it for a new one. You’ll need to have used a mattress protector to qualify, but we promise to make the whole exchange process quick and simple. All we ask is that you try your new mattress for at least 5 nights. Please note charges apply to the guarantee. Our standard conditions apply. The 40 night comfort guarantee does not cover products sold as 'Refurbished', 'Clearance' or 'Ex-display' from our showrooms or website,

Read more about our 40 night comfort guarantee