Octasmart Deluxe Mattress Topper, Double

Free Memory Foam Pillow

Comfort: Medium/Soft
Depth: 7cm
£249.99 Was £499.99 Save £250.00

Free Delivery in 7-10 Days

Transform your bed into an even smarter, softer, deeper sleep sensation with 7cm of pure memory foam for the ultimate memory foam topper experience.

"Memory foam runs all the way through this Medium/Soft topper for a deeper feel which will completely transform any mattress."

Memory Foam

Supportive memory foam layer:

Visco-elastic pressure relieving material that moulds to your unique body shape for blissful comfort. It remembers its shape, returning to its original form night after night.

Rejuvenate your mattress

Rejuvenate your mattress:

Excellent choice when your current mattress is in need of rejuvenation, to provide cool luxury comfort and support at a fraction of the cost of a new mattress.

Roll Up & Store

Roll up & store:

Easy to roll up and store or move to another bed. Even to take with you for Octaspring comfort when staying away from home.

Octavent Air System

Octavent Air System:

Octaspring technology combined with a smart performance cover, circulate air inside whilst allowing warm air to escape, cooling your bed temperature by 3°C.

Smart Performance Cover

Smart performance cover:

Hundreds of comfort pockets are built into the anti-allergenic smart performance cover, bringing extra freshness and allowing optimum circulation.

1 Octaspring Layer

1 Octaspring layer:

Contains 1 layer of breathable Octaspring® springs for blissful cradling comfort and luxury memory foam feel without overheating.

Non-slip Base

Non-slip base:

Unique non-slip material ensures the mattress topper stays put, providing an effortless sleeping environment.

8x breathable

8 x more breathable:

The unique ventilation of Octasprings is more breathable than pure memory foam, the constant airflow always keeps the mattress cool.

Anti-bacterial, mould & dustmite

Anti-bacterial, mould and dust mite:

Protects against dust mites, mould and bacteria to keep your bed fresh and clean, creating a healthy sleep environment.

Octaspring Aerospace Technology

Octaspring® aerospace technology:

Octaspring technology is not just used in homes across the world, but also in the sky! It has won aviation awards for providing its unique lightweight support in aircrafts.

Smart at the Heart

Smart at the heart:

Quite simply the smartest mattress we have ever made, containing so many features and smart technology. A smarter mattress means better sleep!

Ultimate Memory Foam Experience

Ultimate memory foam experience:

Hundreds of memory foam Octasprings surrounded by a top and bottom layer of memory foam for softer memory foam comfort.

Get the ultimate memory foam topper experience with the Octasmart Deluxe mattress topper. Open cell memory foam top and bottom layer surround a layer of memory foam Octasprings for a more luxurious medium/soft comfort grade. Memory foam all the way through this deluxe topper helps it adapt and cradle your body for ultimate luxury.

Just as your phone and TV have become smart, now so can your sleep. Using the latest innovation in sleep technologies, Octasmart® mattress toppers are powered by patented multi-award winning Octaspring® aerospace technology. Transform your mattress into the most comfortable and coolest bed of your dreams.

A layer consisting of hundreds of individual Octasprings® made of supportive memory foam at the heart of the Octasmart® Deluxe Mattress Topper evens out the lumps and bumps in your old mattress and adapts to your body, for an even softer, deeper feel. A patented Octavent™ Air System with a smart performance cover allows your bed to breathe through the night.

Smart Comfort at Heart

The Octasmart® Deluxe Mattress Topper combines three next-generation sleep technologies into one smart topper:

1. Luxurious Memory Foam

A top layer of the highest quality open cell memory foam moulds perfectly to your unique shape for blissful comfort, adapting to, and cradling your entire body.

2. Octaspring® technology

At the heart of the topper are hundreds of 4cm Octasprings® which work together to support and cradle every inch of your body, 3-dimensionally adapting to alleviate pressure from the back, hips & shoulders.

Every single Octaspring® comfort point adapts to your body weight and releases pressure across the extra sensitive support points, improving comfort and providing better sleep quality.

3. Our Signature Ecocell® Foam

A bottom layer of our signature Ecocell® foam, with a 3-dimensional permanent cell structure, offers a great supportive base. As well as transforming your old mattress, the topper can be used on your guest best, sofa bed, futon or even directly on the floor.

Octavent™ Air system

Our Octavent™ Air system makes your topper naturally 8 times more breathable, cooling your bed temperature by 3°C, helping you fall asleep faster, and sleep deeper for longer.

This patented system harmonises award winning Octaspring® aerospace technology with a smart performance cover, together allowing cool air to circulate inside the topper and hot air escape.

Like Sleeping on Clouds

The hundreds of comfort pockets built into the smart performance cover will make you feel like you are sleeping on tiny clouds. It brings extra freshness to the topper allowing better air circulation and letting hot air escape. Plus, it is anti-allergenic and can be removed and washed at 40oC.

Safe for you, Smart for the Planet

Designed to leave 50% less environmental footprint, our toppers can be 100% recycled. Octasmart® products are free from harmful chemicals and emissions and are certified by OEKO-TEX certificates.


Single: W: 90cm x L: 190cm x D: 7cm

Double: W: 135cm x L: 190cm x D: 7cm

King: W: 150cm x L: 200cm x D: 7cm

Super King: W: 180cm x L: 200cm x D: 7cm

  • Total Depth: 7cm
  • Memory Foam Layer: 1.5cm
  • Memory Foam Octaspring® Layer: 4cm
  • Ecocell Foam: 1.5cm
  • Body Zones: 3
  • Rotation: Head to toe
  • Smart Performance Cover
  • Non-slip base
  • Removable cover washable at 40oC.

Delivery of Dormeo Octasmart mattress toppers is FREE. We have partnered with specialist couriers to ensure the best possible delivery experience for our customers. We can deliver to all addresses within the UK, however there maybe extra charges for deliveries to the Highlands and Islands. We are sorry, but we cannot deliver to Gibraltar and Channel Islands. We charge £4.95 for delivery of orders under £79.

60 night comfort guarantee

Try our topper in the comfort of your own home with our unique 60 night comfort guarantee. If you aren't getting the best night's sleep you've ever experienced, just return it to us within 60 nights of purchase and we'll refund your full purchase price.

Free Octasmart pillow

Your new Octasmart Plus mattress topper is delivered with a free Octasmart pillow, our smartest pillow ever, absolutely free! Your Octasmart pillow gift comes packaged in the same box as your topper for more efficient and eco-friendly delivery.

8 year warranty

Octasmart toppers are made from the highest quality materials and manufactured to exacting standards. For this reason we are able to offer an 8 year limited warranty for toppers in the Octasmart range.

Kinder to the planet

We use 50% less raw materials, and there is virtually no waste when producing Octaspring® technology. We have reduced our carbon footprint by making our mattresses lighter and 100% recyclable.

All our toppers are vacuum-packed for greater hygiene, but also for a more eco-responsible way of delivery to help our planet.

Simple steps for your first night’s sleep

  1. Take your topper to the room where you will use it and carefully cut the outer packaging using a blunt knife or scissors. Please be careful not to cut the topper cover.
  2. After opening, the topper will start taking its shape and the  cover might be slightly wrinkled, which is normal after vacuum packaging. Be assured it will disappear in just a few short hours.
  3. Your topper will take its original shape in 15 minutes, but let it breathe for at least 6 more hours, so all the core components completely recover.
  4. That’s it, your Octasmart® topper is ready for you. You might notice a new topper smell, which is normal and will dissipate in a couple of hours.
Dormeo UK Limited trading as Dormeo, is registered in England and Wales no. 07440398. Registered address: Wye House, 376 London Road, High Wycombe, Buckinghamshire, HP11 1LH. Dormeo UK Limited is Authorised and Regulated by the Financial Conduct Authority as a Consumer Credit Firm under firm number 627302. Klarna Bank AB (publ) is Authorised by the Swedish Financial Services Authority (Finansinspektionen) and is subject to limited regulation by the Financial Conduct Authority. Registered office: Sveavägen 46, 111 34 Stockholm, Sweden. Corporation ID number: 556737-0431.