Sealy Columbia Ortho Firm Support Mattress

Description

• 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 – enhances durability, minimises roll-off, and maximises the sleep surface right to the mattress edge
• Hand-tufted – for a supportive feel
• Easy-care, non-turn mattress – just rotate it regularly according to the care guide instructions
• Mattress height – 27cm
• Comfort rating – Firm (also available in Extra Firm as the Sealy Columbia Ortho Extra Firm)
• Free 5 year guarantee – for peace of mind
• Made in the UK 

If you’re looking for a comfortable and supportive sleep, on a mattress that’s made up of multiple layers with great benefits, then take a look at the Sealy Columbia Ortho Firm Support Mattress.

PostureTech Core Spring Unit for Targeted Support

Having the right mattress can be beneficial for keeping you supported as you sleep. The Sealy Columbia Ortho Firm Support mattress is built with a PostureTech core support spring unit that offers technology to support the body where it’s needed the most.

In the lower back area of your mattress (or the lumbar area), you’ll get additional support thanks to the mattress’s central zoning PowerPack. This power pack provides extra support to your lower back and acts as a shock absorber to ensure the longevity and durability of the mattress.

Extra Space and Edge-to-Edge Comfort

We’re sure the majority of us would love extra sleeping space. Thankfully, this mattress has EdgeGuard – a Sealy technology that makes the edge of the mattress firmer.

By having a firm edge, you get a larger sleeping area, meaning you can lie right to the edge of the mattress without feeling like you’re going to fall off. This gives you a larger sleeping space so you and your partner can move around freely without disturbing each other.

A Fresh and Allergy-Friendly Sleep Environment

Covering these layers of comfort is a luxury Belgian damask cover that has been treated with skin-safe ProShield®. No one needs the annoyance of allergies popping up and disturbing them as they sleep. ProShield® is a skin-safe treatment, endorsed by Allergy UK, which can keep pesky allergens at bay, so you can have a clean, comfortable and restful night’s sleep.

Dimensions:

• Single Size: Height: 27 cm | Length: 190 cm | Width: 90 cm
• Small Double Size: Height: 27 cm | Length: 190 cm | Width: 120 cm
• Double Size: Height: 27 cm | Length: 190 cm | Width: 135 cm
• King Size: Height: 27 cm | Length: 200 cm | Width: 150 cm
• Super King Size: Height: 27 cm | Length: 200 cm | Width: 180 cm

*Prices are subject to change and refer to the single size (last updated 29.05.2026). If a purchase is made using one of the links on this site, we may earn a small commission, at no added expense.