Dormeo S Plus Memory Foam Mattress

Inspired by the human body and the natural shape of the spine, the Dormeo S Plus Memory Foam Mattress is designed to provide customisable comfort to each side of the mattress via innovative interchangeable cores.

  • Smartly connected cores, personal to each side of the mattress, can be quickly and easily interchanged, for personalised comfort and support
  • Flip your mattress core to choose a softer or firmer side, or rotate the core head to toe for softer or firmer support for your neck and shoulders
  • S-shaped core perfectly contours and supports the natural shape of your body
  • Layer of patented honeycomb shaped Octasprings® move three dimensionally and promote constant airflow
  • Perfect for couples who sleep side by side but have different comfort preferences

Bundle and Save

Spring/Summer Bedroom Bundle
From £49.99 Priced Separately £75.97 Then £0.00 Save £25.98
Evercomfy Anti-Allergy Mattress Protector
From £19.99
Octasmart Pillow
£39.00 Was £49.00 Save £10.00

Save 30% on a bed

when purchased with this mattress

Minimo Bed Frame
From £349.00 Was £499.00 Then £0.00 Save £150.00
Alto Bed Frame
From £384.00 Was £549.00 Then £0.00 Save £165.00
Lusso Bed Frame
From £419.00 Was £599.00 Then £0.00 Save £180.00
Minimo Ottoman
From £559.00 Was £799.00 Then £0.00 Save £240.00
Alto Ottoman
From £699.00 Was £999.00 Then £0.00 Save £300.00
Lusso Ottoman
From £769.00 Was £1,099.00 Then £0.00 Save £330.00

Product Overview

Experience cooling comfort and the cradling sensation of memory foam with the Dormeo S Plus mattress. For enhanced breathability, we have combined uniquely patented Octaspring® technology with Ecocell™ foam.

Thanks to the configurable S-shaped Ecocell™ core, you are also able to personalise the design to suit your needs – simply choose from a combination of comfort and support levels for a tailor-made sleeping experience.

No matter what your preferences, or how you sleep, the S Plus mattress can provide both individual sleepers and couples with their own great night’s sleep. Buy a Dormeo mattress today to begin enjoying blissful sleep.

Unique S-Shape Layer

Inspired by the human body and the natural S-shape of the spine, the S-Plus mattress is designed to provide unparalleled sleep comfort thanks to the innovative layer of Octaspring® technology which runs throughout the heart of the mattress.

Complete Customisation

Based on 15 years of collaboration with expert engineers and vast customer research, the Dormeo S Plus Memory Foam Mattress has been designed to be the first 100% personalised mattress, offering over 30 different comfort combinations*. 

1. Choose your Side

The smartly connected cores, personal to each side of the mattress, can be quickly and easily interchanged, making the S Plus mattress a risk-free choice for couples with different sleeping preferences.

2. Choose your Comfort

Unzip the cover and flip your side of the mattress to choose between two unique Ecocell™ foam densities.  You have the option of a softer side, suited for side sleepers, or a firmer side often favoured for those who sleep on their back.

3. Choose your Support

Rotate your mattress head to toe to find your preferred side of the unique S-shaped Octaspring® layer. Choosing to have the Octasprings closer to your neck and shoulders offers more adaptability and bounce. Alternatively, rotate the mattress horizontally to add distance between the Octaspring® layer and your neck and shoulders for firmer support.

Body Zoned Octaspring Technology

The Octaspring® is a next-generation, patented sleep technology, which delivers up to 8 times greater ventilation compared to traditional foam. This means you get a cooler, fresher night’s sleep, while also providing incredible comfort and support.

Whilst the unique Octaspring® technology offers unrivalled breathability, the individual springs within the Dormeo S Plus Memory Foam Mattress are arranged in different firmness levels. This creates customised body support zones that are beneficial to correct spinal alignment for a better night’s sleep.

Next Generation Ecocell™

Our uniquely breathable Ecocell™ foam is what makes the Dormeo difference. The Ecocell™ foam encases the unique Octaspring® tube technology, providing extra support. Ecocell™ is a next-generation foam designed to be permanently elastic with a 3-dimensional cellular structure, providing efficient air circulation and support where you need it.

Anti-bacterial, Anti Dust Mite

A luxurious quick-drying Climate Silver cover tops off the S Plus mattress, keeping moisture at bay for enhanced mattress freshness, whilst the Clean Effect treatment delivers anti-bacterial, anti-dust mite and anti-static protection.



Single: W: 90cm x L: 190cm x D: 20cm

Double: W: 135cm x L: 190cm x D: 20cm

King: W: 150cm x L: 200cm x D: 20cm

Super King: W: 180cm x L: 200cm x D: 20cm

*Single mattress contains one configurable core and therefore offers fewer comfort combinations. 

*Spring colour may vary.


Sleep PositionSide Sleeper, Back Sleeper, Front Sleeper
FirmnessMedium/Soft, Medium, Medium/Firm, Multi
FeaturesMemory Foam, Octaspring Technology, Anti-Allergy, Body Zones, Silver, Dual Core, Ecocell Foam, Handles
Warranty15 Years
3’0 Single DimensionsL 190cm x W 90cm x H 20cm
4’6 Double DimensionsL 190cm x W 135cm x H 20cm
5’0 King DimensionsL 200cm x W 150cm x H 20cm
6’0 Super King DimensionsL 200cm x W 180cm x H 20cm

Product FAQ 20

Product Questions and Answers
  1. Q:Can I pay in instalments?
    A:We have partnered with Klarna to bring you new ways to pay at the checkout. It's a safe and simple way to get your best night's sleep ever with affordable monthly repayments.
  2. Q:How long is delivery?
    A:Product delivery times vary between products, please check the delivery time stated when adding your product to your basket. Please allow an extra 7 days from receiving your despatch confirmation e-mail if your delivery is to Northern Ireland, the Highlands, and the Islands of Scotland.
  3. Q:Can I use an electric blanket?
    A:We do not use an electric blanket the heat can cause the foam to become mishappened over time and may invalidate the warranty.
  4. Q:What is the warranty on your mattresses?
    A:Our Quality Control team works tirelessly to maintain our quality standards and the manufacturing processes involved in making our products, which is why we are proud to offer warranties of up to 20 years on selected mattresses. Check out each warranty lengh -
  5. Q:Can I take the mattress abroad?
    A:Yes, you can, however, this will invalidate the warranty.
  6. Q:Is it easy to return if not liked?
    A:If your mattress comes with a sleep trial you can return within 60 days. Please see returns guide -
  7. Q:Do I have to flip the mattress?
    A:Our mattresses should be rotated once a week for the first 4 weeks of use and then once every 4 weeks thereafter. Rotate head to toe and vice versa.
  8. Q:Can I use the mattress on a slatted bedbase?
    A:Our mattresses are suited to standard bed bases and bedsteads. For slatted bases, please ensure the maximum gap is no more than 7.5cm (3 inches), wear and tear on a mattress will be greater the wider the gaps and will invalidate the warranty if gaps are more than 7.5cm.
  9. Q:What's the best mattress for a bad back?
    A:Please click on our link this will help answer your questions. If you require more help you can call our Sleep Experts on 0800 625 0134 they will be happy to help get the right mattress for you.
  10. Q:Why do you have a limited range of small doubles?
    A:We are currently in the process of producing a bigger range of small double mattresses- watch this space!
  11. Q:How do I stop the mattress from going mouldy
    A:The product is intended for use inside the home in temperate environments. We recommend exposing the mattress to fresh air weekly without sheets. In this way, a build-up of humidity is prevented. The occurrence of mould is not covered under warranty. Tip: make sure your mattress is not pushed right against the wall.
  12. Q:Do you do kids' mattresses?
    A:We have a wide range of mattresses to suit the whole family.
  13. Q:Do the mattresses smell?
    A:Some rolled mattresses sometimes have off-gassing, however, this is very rare with the quality of Dormeo products, and if there is any smell this normally dissipates very quickly. If the smell persists, we would suggest airing in a well-ventilated room for 24/48 hours. If there is still a smell please contact us and we can discuss the next steps.
  14. Q:What does Rejuvenate mean?
    A:Any mattress that has been slept on for less than 60 days has been professionally treated and sanitised to ensure 100% of the surface area is cleaned. The mattress has been professionally treated and sanitised to ensure 100% of the surface area is cleaned and its components have been inspected and passed our quality control checks.
  15. Q:How do I know what size I need?
    A:Please use the the mattress buying guide - this provides all measurements of our mattresses. Our mattresses are available in all UK standard sizes and some select European sizes.
  16. Q:Do you take my old mattress away?
    A:We can arrange a collection of your old mattress, please call customer services on 0800 2248 361 for more information and costs.
  17. Q:How long does the mattress take to recover from being rolled?
    A:The mattress must be opened within 30 days of delivery. After opening, you mattress will regain its normal shape in 15 minutes and ready to sleep on after 6 to 8 hours. For further care instructions, please read our Mattress Care Guide.
  18. Q:Do you deliver outside of the UK?
    A:We deliver to all addresses within the UK only, however, there may be extra charges for deliveries to the Highland and Islands of Scotland for some Octaspring mattresses. Unfortunately, we cannot delivery to Gibraltar, the Channel Islands or the Isle of Man. Please allow an extra 7 days from receiving your dispatch confirmation email if your delivery is to Northern Ireland, the Highlands, and the Islands of Scotland.
  19. Q:Can I try your mattresses before I buy?
    A:We currently only sell our mattresses through our website and through other carefully selected online retailers ( But we do offer a unique 60-night trial on all our memory foam mattresses, which mean that we will refund or exchange your mattress for up to 60 nights with absolutely no quibble if you're not happy with it.
  20. Q:How is the mattress delivered?
    A:Our Dormeo Memory mattresses are vacuum packed, which enables easy transportation and excellent hygiene. You can upgrade your delivery service to a room of choice with assembly, please call us at 0800 2248 361 for availability and prices. If you purchase one of our Octaspring branded mattresses, you'll automatically be entitled to our free White Glove Delivery service. Our team will deliver the mattress, set up your new mattress for you, and take away the packaging at no additional charge to you.

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Dormeo S Plus Memory Foam Mattress