Dormeo King Size - CLEARANCE - Ex Showroom - Octasmart Premium Classic King Size Mattress

This item is part of our Ex-Showroom range. An Ex-Showroom item could have some marks or wear and tear from being on display in one of our showrooms. This will be cosmetic and will not affect the usability of the product. If you require any extra information just give us a call on 01928 242829.

A Medium Firm (4/6) foam mattress from Dormeo, built with Octaspring® Foam Springs, Aerocell Foam and an Ecocell® Foam base, best suited to sleepers who want medium firm support, effective temperature regulation and targeted five-zone support - offered here in King Size as a clearance Ex-Showroom model.

Medium Firm Feel - 4/6: A supportive feel with added stability. Ideal for people who change sleeping position during the night and need a balance of comfort and support.

Best for

• Back sleepers - the zoned Octaspring® core helps keep your spine in its natural alignment and stops your hips sinking too far
• Front sleepers - firm enough to keep your hips level and your lower back supported through the night
• Combination sleepers - the five smart body zones and 3D adaptive Octasprings® respond as you change position
• Those who want a foam mattress without a slow, sinking feel - the Octaspring® core responds quickly as you move
• Couples - the Octaspring® Foam Springs absorb movement, so you're less likely to disturb each other
• Those looking for pressure relief - the open-cell Aerocell Foam comfort layer moulds to your shape to ease pressure points
• Hot sleepers - the Octavent™ Air System pushes warm air out and draws fresh air in, cooling bed temperature by up to 3°C
• Sleepers up to 139.7kg (22st) per side

Not ideal for

• Side sleepers who need extra cushioning at the shoulders and hips - a softer mattress may suit you better
• Sleepers who prefer a very soft, sink-in feel

Worth knowing

• This is a clearance price on the King Size only, while stocks last. As an Ex-Showroom item, this mattress may carry cosmetic marks or wear from handling or display, but this does not affect comfort or support.
• This clearance item carries an 18-year manufacturer's warranty.
• This is a single-sided, easy care mattress, so there's no need to flip it - simply rotate it head to toe every 3 months to keep the feel even.

Octaspring® Foam Springs
What it is: Dormeo's unique octagonal foam springs, which form the supportive core of the mattress.
How it helps you sleep: They spread your weight evenly and help keep your spine aligned, so you settle faster and spend more time in deep, restorative sleep.

360° Comfort
What it is: Hundreds of individual Octaspring® foam springs that move three-dimensionally to follow the shape of your body.
How it helps you sleep: Each spring adjusts to your contours in any sleeping position, easing pressure points for a more comfortable, undisturbed night.

5 Smart Body Zones
What it is: The Octasprings® are arranged into five zones that give different levels of support from head to toe.
How it helps you sleep: Your shoulders, back, hips and legs each get the support they need, helping your body rest in a healthy, natural position.

Octavent™ Air System
What it is: Dormeo's ventilation system, 8x more breathable than traditional memory foam, with a constant airflow that can cool bed temperature by up to 3°C.
How it helps you sleep: As you move, warm, humid air is pushed out through the sides of the mattress and fresh air is drawn in, keeping your sleeping surface cool and fresh.

Uniquely Breathable Aerocell Foam
What it is: Dormeo's open-cell foam comfort layer, sitting just beneath the surface of the mattress.
How it helps you sleep: It gently moulds to your shape for pressure relief while letting air flow freely, working with the Octasprings® to keep you comfortable and cool.

Ecocell® Foam
What it is: Dormeo's permanently elastic foam base, with a 3D cell structure that lets air circulate.
How it helps you sleep: It gives the mattress a stable, supportive foundation that reduces the pressure points that cause tossing and turning.

Smart Performance Cover
What it is: Dormeo's anti-allergenic cover, featuring hundreds of built-in comfort pockets for extra freshness and airflow.
How it helps you sleep: It adds breathability and helps keep allergens at bay, giving you a cleaner, more comfortable place to sleep.

Sanitized® Protection
What it is: An anti-bacterial, anti-dust mite and anti-fungal treatment applied to the mattress.
How it helps you sleep: It helps create a hygienic sleep environment, which is especially reassuring if you suffer from asthma or allergies.

Eco Friendly
What it is: A 100% recyclable mattress, designed to leave 50% less environmental footprint.
How it helps you sleep: You get a comfortable night's sleep with the peace of mind that your mattress has been made with the planet in mind.

Easy Care
What it is: A single-sided, no-turn design that only needs rotating head to toe rather than flipping.
How it helps you sleep: Simple upkeep keeps the mattress feeling consistent night after night, with minimal effort from you.

Vs firmer mattresses: The Octasmart Premium Classic gives you firm support through the lumbar and hip zones, but the Aerocell Foam comfort layer adds a cushioned feel that firmer mattresses rarely offer. It's a better fit for combination sleepers who want support that still adapts as they move.

Vs softer mattresses: Softer mattresses can feel inviting at first, but they often lack the resistance needed to keep back and front sleepers properly aligned. The medium firm Octaspring® core keeps your spine supported throughout the night, and the permanently elastic Ecocell® Foam base helps the mattress hold its shape over time.

Vs premium and luxury mattresses: Many premium foam mattresses rely on dense memory foam that can trap heat and feel slow to respond. This mattress uses an actively ventilated foam spring system and five support zones to deliver a cooler, more responsive feel, though it is a slimmer 17cm build rather than the deep, layered construction found on luxury hand-finished mattresses.

The Octasmart Premium Classic comes with Dormeo's 18-year manufacturer's warranty against defects in materials and workmanship.

Sanitized® Certified - An internationally recognised hygiene standard confirming the mattress resists bacteria, dust mites and fungi, which is welcome reassurance for allergy and asthma sufferers.

OEKO-TEX® Certified - Independent certification confirming the materials have been tested for harmful substances, so you can be confident that what you sleep on every night is safe for your skin.

Award-Winning Octaspring® Technology - The patented Octaspring® foam spring system at the heart of this mattress has received multiple industry awards for sleep innovation.

The Dormeo Octasmart Premium Classic brings 3D adaptive Octaspring® support, five smart body zones and the cooling Octavent™ Air System to your bedroom. This clearance Ex-Showroom listing offers the King Size at a reduced price while stocks last - ideal for back sleepers, front sleepers and combination sleepers.

Add to basket to secure this clearance Ex-Showroom mattress. Free UK delivery and your 18-year warranty are included.

Not sure this is the right mattress for you? See our Mattress Buying Guide for guidance on mattress types, fillings and comfort levels.