Octasmart Plus Memory Foam Mattress

Octasmart Plus Memory Foam Mattress is rated 4.6 out of 5 by 35.
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Free Memory Foam Pillow

Comfort: Medium
Depth: 17cm
Offer Ends In
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From £599.99

FREE Delivery in 5-14 Days

Our smartest mattress ever. Powered by award winning Octaspring® aerospace technology, this mattress will transform your sleep forever.

Octasmart Plus Memory Foam Mattress Features:

  • Total Depth:
  • Comfort Grade:
  • Body Zones:
  • Cover:
    Smart Performance

"This medium firmness mattress went down well with testers. It had a premium feel despite the cost with testers agreeing that it got comfier by the night. Effectively prevented overheating for the duration of the night, enabling a much better quality of sleep."

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.

3 Layers of Smart Technology

3 layers of smart technology:

Luxurious memory foam top layer, supportive Ecocell base layer and smart Octaspring® layer at the heart, that’s what we call smart comfort engineering!

Powered by Octaspring

Powered by Octaspring®:

The support of springs and the comfort of foam combined for all of the benefits.

3°C Cooler

3 degrees cooler:

Natural airflow helps you stay 3°C cooler all night long, for cooler, deeper, longer sleep.

3 Smart Body Zones

3 smart body zones:

Smart zoning supports your shoulders, back and hips in just the right way for great sleeping posture thanks to 3 zones of different firmness.

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.

Designed for Couples

Designed for couples:

Designed specifically for couples in mind. Individual support makes it almost impossible to feel your partner getting in and out of bed.

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.

Rolled Mattress

Delivered rolled and vacuum packed:

Vacuum-packed for greater hygiene, but also for a more eco-responsible way of delivery. Not enjoying your mattress? We'll collect it within 60 nights for free!

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!

Go One Better

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

The combination of technologies and innovative materials create outstanding performance and comfort in this mattress. Rated with a medium firmness, you can be reassured that this mattress is neither too firm or too soft, making it an excellent choice in most cases, unless a super-soft or orthopeadic feel is preferred. 

Octaspring® technology at the core provides the difference that can’t be found anywhere else. Not only does its unique structure make this bed actually breathe, the smart body zones create optimal support to your head, shoulders, hips and lets to comfort and cradle you night after night.

Smart Comfort at Heart

The Octasmart® Plus Mattress combines three next-generation sleep technologies into one smart mattress:

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 mattress are hundreds of 9cm 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.

Octavent™ Air system

Our Octavent™ Air system makes the mattress 8 times more breathable, cooling your bed temperature by up to 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 mattress 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 mattress allowing better air circulation and letting hot air escape. Plus, it is anti-allergenic and removeable.

Smart Zoning

Different firmness Octaspring® springs are arranged in 3 body zones to provide customised support for your back, with more support for your hips and shoulders which allows your spine to comfortably take its natural shape.

Safe for you, Smart for the Planet

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


Single: W: 90cm x L: 190cm x D: 17cm

Double: W: 135cm x L: 190cm x D: 17cm

King: W: 150cm x L: 200cm x D: 17cm

Super King: W: 180cm x L: 200cm x D: 17cm

Rated 5 out of 5 by from Excellent good quality Bought this a couple of months ago the best thing I have ever bought
Date published: 2020-03-26
Rated 5 out of 5 by from Excellent, excellent, excellent!!! I bought this 6 weeks ago and with all the upheaval in the world and our lives I can honestly say this mattress has given the tool to sleep... I'm sure life would be unbearable if I couldn't sleep properly... A decent mattress is a total necessity in life and I highly recommend this particular product...
Date published: 2020-03-21
Rated 5 out of 5 by from Octasmart plus mattress I am so pleased with this mattress it is very comfortable.
Date published: 2020-03-17
Rated 5 out of 5 by from Brilliant Having bought this mattras about a month ago so very pleased i did i have been strugling to sleep for some years bying different mattrases but no joy untill i bought this one i now enjoy a perfect night sleep feeling fresh in the morning and no pain thank you would recomend to anyone and i have allready told a lot of people about it
Date published: 2020-03-13
Rated 5 out of 5 by from Great buy We have had this mattress for a couple of months now and it is super comfortable. My wife doesn’t wake when I get up in the night. One thing to bare in mind is if you have mobility issues like I do you may find difficulties getting out of a bed with memory foam.
Date published: 2020-03-11
Rated 5 out of 5 by from Amazing This is a review for the Octasmart Deluxe, not the Plus (as stated above). I bought this recently and both my wife and I have been having the best sleep that we've had in a long time. As an added bonus, I have stopped snoring since I started using my new pillow, which came free with the mattress. I can't praise this product enough and the people that I dealt with at Dormeo were brilliant.
Date published: 2020-03-04
Rated 5 out of 5 by from Great mattress Best night sleep Ive had for years would highly recommend
Date published: 2020-03-03
Rated 5 out of 5 by from The Best Mattress It really is the most comfortable mattress I have ever had. Been sleeping so much better.
Date published: 2020-03-01
Rated 5 out of 5 by from Comfortable nights sleep Love my new mattress. Comfy along with the free octasmart pillow.
Date published: 2020-02-29
Rated 5 out of 5 by from So comfy Purchased 2 months ago , amazing nights sleep, and just as advertised , no roll together when my partner moves
Date published: 2020-02-28
Rated 5 out of 5 by from Lovely and deep I bought this a couple off months ago after trying two other mattresses, one was too soft , one was too hard and this one was just right, just like the three bears. From day one this mattress has been perfect, I didn’t have to get used to it for a few weeks , I love It.
Date published: 2020-02-27
Rated 5 out of 5 by from Fabulous!!!!! I purchased this just after Christmas and it’s amazing it’s so comfy and does exactly as advertised definitely worth the buy and the pillow is great too, my sleep patterns have definitely improved. Money well spent.
Date published: 2020-02-26
Rated 5 out of 5 by from Does what it says No more bad backs look forward to going to bed great
Date published: 2020-02-24
Rated 5 out of 5 by from Sleepy boy I am very happy with my new mattress great sleep every night
Date published: 2020-02-24
Rated 5 out of 5 by from Takes a little getting used to Initially I did not expect it to be any good as it was thinner than our last mattress and came rolled up!! After a few nights it seemed to not be springing back and it was not very comfortable, however it clearly needed to be bedded in! It was soon really comfortable and I would not change it, really glad I stuck with it.
Date published: 2020-02-22
Rated 5 out of 5 by from Brilliant Thank you so very much for my mattress it is so comfortable -? I suffer from a chronic scute bone condition and have both hips replaced so can’t get completely comfortable in bed but this lovely mattress is wonderful THANK YOU
Date published: 2020-02-04
Rated 5 out of 5 by from Great sleep This mattress is brilliant, I purchased it as I have suffered with a bad back for years and in the last 18 months my sleep had been disrupted by my old mattress causing severe pain. Since buying the octosmart mattress my sleep has greatly improved and I can stay in bed longer without waking in pain and i sleep through the night much better. Thanks dormeo for improving both my sleep and life as I am not as tired as I used to be.
Date published: 2020-01-06
Rated 5 out of 5 by from Really comfortable I bought this mattress a month ago and have had the best sleep in such a long time.
Date published: 2020-01-03
Rated 5 out of 5 by from Great. Mattress When it first arrived I thought it was too thin to be comfortable. Was I wrong!!!!!
Date published: 2019-11-29
Rated 5 out of 5 by from Really nice Our first memory foam mattress and it's really good. Wish we had got one sooner instead of sleeping on our old mattress for years! Came rolled, easy to unpack and ready to sleep on the next day.
Date published: 2019-07-02
Rated 5 out of 5 by from It’s so comfortable! It’s so comfortable, so supportive. I sleep through the night incredibly well now! Finally a memory foam mattress that keeps me cool :-) Bring on summer!
Date published: 2019-03-07
Rated 4 out of 5 by from Gteat Had our mattress for about 6 weeks now. We love it. Best mattress we ever bought. Great value and extremely comfortable.
Date published: 2020-03-07
Rated 4 out of 5 by from Good Quality Mattress I was happy with the quality of this Mattress, unfortunately, due to me recently having had surgery on my stomach, this did not suit me. I was able to return at no charge, and the Company rep was very helpful.
Date published: 2020-03-03
Rated 4 out of 5 by from Comfortable We have had this mattress now for a month. I am defiantly sleeping better, which was the reason for purchasing a new expensive mattress. However, I am not 100% sure I like the feel of the 'bumps' on the mattress and may consider buying a mattress topper to smooth them out in the future.
Date published: 2020-02-26
Rated 4 out of 5 by from Good mattress Good delivery. Comfortable, but bit firmer than used to, so still getting used to it. Pleased with quality .
Date published: 2020-01-22
Rated 4 out of 5 by from Nice Mattress I bought the mattress about 5 weeks ago and have been very pleased with it. We get a good nights sleep, every night.
Date published: 2020-01-21
Rated 4 out of 5 by from Great nights sleep Matress arrived just before Xmas. Has been a really good purchase.
Date published: 2020-01-18
Rated 3 out of 5 by from Good quality item We tried the mattress for about a month and though ok for me my partner found it too firm for her. It was well made a good mattress but unfortunately we returned it.
Date published: 2020-01-31
Rated 3 out of 5 by from Not as comfy as expected Purchased as classed as the new all singing all dancing mattress must have , not as comfy as expected I wake up most mornings with back ache and the matching free pillow has gone flat.
Date published: 2019-07-06
Rated 2 out of 5 by from Disappointed We purchased and have slept on this mattress for a few months. It was thinner than expected and is now quite lumpy and uncomfortable.
Date published: 2020-02-03
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  • Total Depth: 17cm
  • Memory Foam Layer: 2cm
  • Octaspring® Layer: 9cm
  • Ecocell Foam Layers: 3cm
  • Body Zones: 3
  • Rotation: Head to toe
  • Smart Performance Cover
  • Non-slip base
  • Cover Material: Washable nylon, dry clean only
  • Warranty: 18 years

Delivery of all Dormeo mattresses 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 £80.

60 Night Comfort Guarantee with FREE Returns

Try any Octasmart mattress 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 delivery and we'll refund your full purchase price completely free with no cost of return. Simply give our Sleep Experts a call and they will arange collection absolutely free!

18 Year Warranty

All Dormeo mattresses are made from the highest quality materials and manufactured to exacting standards. This is what gives us the confidence to place a full 18 year limited warranty on all our memory foam mattresses.

Eco Promise

At Dormeo we are continually looking at methods and materials consistent with our commitment to cause less impact on our environment. As an environmentally-conscious brand, we understand our responsibilities to the Earth's resources and are committed to recycling wherever we can. Vacuum packing our mattresses lowers CO2 emissions during transport.

Vacuum Packaged

Our Dormeo mattresses are vacuum packed, which enables easy transportation and excellent hygiene. Do not use sharp objects when opening the package as these may damage the mattress cover. After opening, your mattress will regain its normal shape in 15 minutes and be ready to sleep in up to 8 hours. The mattress may take up to 24 hours to reach its full depth.

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.