Dormeo S Plus Evolution Memory Foam Mattress

Personalised comfort, with deeper cushioning

 

The Dormeo S Plus Evolution Memory Foam Mattress gives you all the customisable comfort of the S Plus, upgraded with a deeper 26cm profile and 50% more memory foam* for a softer, plusher feel. Its innovative S-shaped cores can be flipped, rotated and interchanged, making it particularly useful for couples with different comfort preferences.

 

What you'll love:

  • 3 firmness combinations for couples – choose Soft + Soft, Firm + Firm, or Soft + Firm for a different feel on each side.

  • Choose softer or firmer comfort – simply flip your side of the core to change the feel.

  • Adjust your shoulder support – rotate the core to position the Octaspring® section closer to or further from your neck and shoulders.

  • 3 body-zoned support areas – Octaspring® technology uses different firmness levels to provide targeted support while encouraging airflow through the mattress.

  • 26cm deep with 3cm of memory foam – 50% more memory foam than the S Plus Mattress for deeper cushioning and a softer, plusher feel.

 

Bundle and Save

Dormeo Octasense Pillow
£49.99
The Dormeo Evercomfy Cool & Save Bundle, including a Dormeo Anti-Allergenic Mattress Protector, a Dormeo Evercomfy 4.5 Tog Duvet, a Dormeo Evercomfy Pillow Case Pair and a Dormeo Evercomfy Fitted Sheet.
From £155.94
Spring/Summer Bedroom Bundle
From £75.97

Product Overview

Personalised comfort, evolved

The S Plus Evolution takes the customisable comfort of the S Plus and adds deeper cushioning for a softer, more luxurious sleep feel.

Its configurable S-shaped core allows you to tailor both firmness and support to suit the way you sleep, while the deeper 26cm profile and 3cm layer of memory foam — 50% more than the S Plus Mattress — provide extra cushioning and a plusher feel.

Whether you sleep alone or share your bed with someone who prefers a completely different feel, the S Plus Evolution gives you the flexibility to find a setup that works for you.

Its clever construction combines cushioning memory foam, breathable Ecocell® foam and responsive Octaspring® technology for personalised comfort, support and airflow.

Complete Customisation

For couples, the S Plus Evolution gives you three simple firmness setups across the mattress: Soft + Soft, Firm + Firm, or Soft + Firm.

Each core can also be rotated to change the positioning of the Octaspring® section around your neck and shoulders, giving you further control over the support you feel.

1. Choose your side

On Double, King and Super King mattresses, the two sides of the core can be configured independently, making the S Plus Evolution a great choice for couples with different comfort preferences.

Choose the same firmness across the whole mattress or select a different feel on each side.

2. Choose your comfort

Simply unzip the mattress cover and flip your side of the core to choose between two different Ecocell® foam densities.

One side offers a softer feel, while the other provides firmer comfort, so you can choose the feel that suits you best.

3. Choose your support

Rotate your mattress core from head to toe to change the positioning of the unique S-shaped Octaspring® layer.

Positioning the Octasprings closer to your neck and shoulders provides greater adaptability and bounce, while rotating the core places more supportive foam beneath the shoulder area for a firmer feel.

Body-zoned Octaspring® technology

At the heart of the S Plus Evolution is a layer of patented Octaspring® technology.

Unlike traditional foam, individual Octasprings move three-dimensionally to adapt to your body while allowing air to move through the mattress. Octaspring® technology provides up to 8 times greater ventilation than traditional foam, helping create a cooler, fresher sleep environment.

The Octasprings are arranged across 3 body zones, using different firmness levels to provide targeted support across the mattress.

Breathable Ecocell® support

The configurable S-shaped core is made using Dormeo’s breathable Ecocell® foam.

Its three-dimensional cellular structure is designed to encourage air circulation while providing responsive support throughout the mattress.

Extra cushioning memory foam

The S Plus Evolution features a 3cm layer of memory foam integrated into the mattress cover — 50% more memory foam than the S Plus Mattress.

The memory foam gently adapts to the shape of your body, creating deeper cushioning and contributing to the softer, plusher feel of the Evolution.

Combined with the configurable core underneath, it gives you the personalised comfort of S Plus with an extra level of cushioning.

Deeper comfort

At 26cm deep, the S Plus Evolution has a more substantial profile than the 20cm S Plus Mattress.

Its deeper construction and additional memory foam make it the natural step-up for sleepers who like the personalisation of S Plus but want a softer, more cushioned sleep experience.

Designed for a fresher sleep environment

The S Plus Evolution is finished with a quick-drying Climalite Silver cover designed to help manage moisture and keep your mattress feeling fresh.

The cover also features CleanEffect treatment, providing antibacterial, anti-dust mite and anti-static protection.

A great choice for

  • Couples with different comfort preferences – choose Soft + Soft, Firm + Firm or a different firmness on each side.

  • Sleepers who want softer, deeper cushioning – with 50% more memory foam than the S Plus Mattress.

  • Those who want adjustable support – rotate the core to change the positioning of the Octaspring® section around your neck and shoulders.

  • Those looking for personalised, plusher comfort – combining memory foam, Ecocell® and Octaspring® technology for cushioning, support and airflow.

Mattress depth – 26cm

Available sizes – Single, Double, King, Super King

 

*compared to the Dormeo S Plus Memory Foam Mattress

 

Specifications

Product Range Memory Foam, Personalised Comfort, Rolled
Mattress Type Memory Foam, Rolled, Octaspring, Dual Core
Firmness Medium/Soft, Medium, Medium/Firm, Multi
Features Memory Foam, Octaspring Technology, Silver, Personalised Comfort
Warranty 15 Years
Height 23cm
3’0 Single Dimensions H 23cm x W 90cm x L 190cm
4’6 Double Dimensions H 23cm x W 135cm x L 190cm
5’0 King Dimensions H 23cm x W 150cm x L 200cm
6’0 Super King Dimensions H 23cm x W 180cm x L 200cm

Product FAQ 20

Product Questions and Answers
  1. Q:Can I pay in instalments?
    A:Yes. We offer flexible payment options through Klarna and Clearpay, making it easier to spread the cost of your purchase. Depending on your order value and eligibility, you can choose from a range of payment options, including Pay in 3, Pay in 4 or interest-free payments. Simply select your preferred payment method at checkout to view the options available for your order. Instalment options are available to eligible UK residents aged 18 and over and are subject to status, eligibility and the provider's terms and conditions.
  2. Q:How long is delivery?
    A:Yes! We offer a Mattress Recycling Service, so we can take away your old mattress when your new one is delivered. Simply add Mattress Recycling to your order and our delivery team will collect your old mattress at the same time as delivering your new one. Your old mattress will then be taken away for responsible recycling, helping to keep it out of landfill. Our Mattress Recycling Service is available to most UK addresses. Once you enter your delivery address at checkout, you'll be able to see whether the service is available in your area. Unfortunately, we're unable to offer mattress recycling in Gibraltar, the Channel Islands or the Isle of Man.
  3. Q:How do I know what size I need?
    A:Our products are available in a range of standard UK sizes, with selected products also available in European sizes. Visit our Buying Guides for size guides, measurements and expert advice to help you choose the right product for your bed.
  4. Q:Do you deliver to outside the UK?
    A:We currently deliver to addresses across the UK, including Northern Ireland. Unfortunately, we do not deliver to Gibraltar, the Channel Islands or the Isle of Man. Deliveries to Northern Ireland, the Scottish Highlands and Islands may take up to seven additional days after dispatch, and some larger products may also incur an additional delivery charge, which will be calculated and displayed during checkout before you complete your order.
  5. Q:What is the Dormeo 200 Night Trial?
    A:Selected Dormeo mattresses and mattress toppers come with our 200 Night Trial, giving you up to 200 nights to experience your new product in the comfort of your own home. If you're not completely satisfied, you can return it for a refund or exchange it for another eligible model within 200 nights of delivery (one exchange or return per order). To qualify, your product must be opened within 30 days of delivery and used with a mattress protector. Please note that the 200 Night Trial does not apply to all products, so we recommend checking the product page for eligibility. Full terms and conditions apply, for full detsails please see our 200 Night Trial page.
  6. Q:How do I return my product?
    A:If you wish to return your order, please contact our Customer Care team, who will guide you through the returns process. Return eligibility depends on the product you've purchased. Selected mattresses and mattress toppers are covered by our 200 Night Trial, while other products are covered by our standard returns policy. Full details can be found on our Returns page.
  7. Q:Can I take my Dormeo product abroad?
    A:Yes, you can take your Dormeo product abroad for personal use. Please note that any transportation costs, import duties or customs charges are your responsibility. Your warranty remains valid in line with our warranty terms and conditions. However, if you need to make a warranty claim, you'll be responsible for any costs associated with returning the product, and claims can only be processed from a valid UK delivery address.
  8. Q:How can I contact Dormeo?
    A:If you have any questions before or after your purchase, our Customer Care team is here to help. Visit our Contact Us page to find our latest contact details, opening hours and available support options, including phone and email.
  9. Q:Do I need to flip my mattress?
    A:No. Dormeo mattresses are designed to be rotated rather than flipped. We recommend rotating your mattress from head to toe once a week for the first four weeks, then once every four weeks thereafter to help maintain comfort and support.
  10. Q:Can I use my mattress on a slatted bed base?
    A:Yes. Dormeo mattresses are suitable for use on standard bed frames and slatted bed bases. To ensure proper support and maintain your warranty, the gaps between slats should be no wider than 7.5cm (3 inches). Wider gaps may reduce the mattress's performance and could invalidate your warranty.
  11. Q:Which mattress is best for back pain?
    A:Choosing the right mattress for back pain depends on your individual needs, preferred sleeping position and comfort preference. Our Best Mattress for Back Pain Guide can help you find the right option. If you'd like personalised advice, our Sleep Experts are always happy to help.
  12. Q:How can I help prevent mould on my mattress?
    A:To help prevent moisture build-up, we recommend airing your mattress regularly by removing the bedding and allowing fresh air to circulate. Ensure your bedroom is well ventilated and avoid placing your mattress directly against a wall where moisture can become trapped. Damage caused by mould is not covered under warranty.
  13. Q:Do you sell children's mattresses?
    A:Yes. While we don't have a dedicated children's mattress range, many of our mattresses are suitable for children and teenagers. Simply choose the right size and comfort level for your child's needs, with our single and small double mattresses being popular choices.
  14. Q:Does a new mattress have a smell?
    A:As with many new foam mattresses, you may notice a slight odour when your mattress is first unpacked. This is completely normal, harmless and should fade within 24–48 hours. Simply allow the mattress to air in a well-ventilated room before use. If the odour persists, please contact our Customer Care team.
  15. Q:Can you take away my old mattress?
    A:Yes! We offer a Mattress Recycling Service, so we can take away your old mattress when your new one is delivered. Simply add Mattress Recycling to your order and our delivery team will collect your old mattress at the same time as delivering your new one. Your old mattress will then be taken away for responsible recycling, helping to keep it out of landfill. Our Mattress Recycling Service is available to most UK addresses. Once you enter your delivery address at checkout, you'll be able to see whether the service is available in your area. Unfortunately, we're unable to offer mattress recycling in Gibraltar, the Channel Islands or the Isle of Man.
  16. Q:How long does my mattress take to fully expand?
    A:Please unpack your mattress within 30 days of delivery. Once opened, it will begin expanding immediately and regain its shape within approximately 15 minutes. Most rolled mattresses are ready to sleep on after 6–8 hours, although they may take up to 24 hours to reach their full depth and optimum performance. For the best sleeping experience, we recommend allowing the mattress to fully expand before first use where possible.
  17. Q:Can I try a Dormeo mattress before I buy?
    A:Yes. You're welcome to visit our Dormeo showroom to see and try selected mattresses before you buy (subject to stock availability). Our showroom is located at: Dormeo Showroom Wye House Wye Industrial Estate 376 London Road High Wycombe HP11 1LH Opening Hours: Monday – Saturday: 9:00am – 5:00pm Sunday: 10:00am – 4:00pm If you're unable to visit our showroom, selected mattresses are also covered by our 200 Night Trial, giving you the opportunity to try your mattress at home with complete confidence. Please check the product page for eligibility.
  18. Q:How is my mattress delivered?
    A:Delivery varies depending on the mattress you choose. Dormeo Memory mattresses are vacuum-packed for easy transportation and hygiene. You can find out more on our delivery page. Please refer to the product page for the delivery service included with your chosen mattress.
  19. Q:Can I use an electric blanket with my mattress?
    A:We do not recommend using an electric blanket with foam mattresses. Prolonged exposure to heat may affect the performance and shape of the foam over time and could invalidate your warranty.
  20. Q:What mattress firmness is right for me?
    A:The right mattress firmness depends on your preferred sleeping position, body type and personal comfort preference. Whether you prefer a soft, medium or firm feel, Dormeo offers a range of mattresses designed to provide the right balance of comfort and support. If you're unsure which firmness is right for you, explore our Mattress Buying Guides or contact our Sleep Experts for personalised advice.

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Dormeo S Plus Evolution Memory Foam Mattress