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Dormeo Octasmart Deluxe Memory Foam Mattress review

£329.99 View retailers

Test scoreShow Context

Key features
  • Foam
  • Average warmth
Expert review

The Dormeo Octasmart Deluxe mattress combines memory foam with spring-shaped cylinders of foam in an effort to create a supportive and breathable mattress that feels cool to lie on. It's been in the Dormeo range for a while, so find out whether it's still a decent mattress to choose. Read our expert full Dormeo mattress test review.

What's included:
  • Pros and cons
  • What is it?
  • What's it like to lie on?
  • Is there anything I should watch out for?
  • Is there anything else I should know?
  • Should I buy it?
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Last checked by Which?

December 2021

First reviewed by Which?

November 2019

Released

February 2019

Technical specifications

General

  • SizeDouble
  • Removable mattress cover
  • Weight21kg
  • Length190cm
  • Width136cm
  • Depth18cm
  • Manufacturer guarantee15 years
  • Manufacturer guarantee termsDormeo mattresses have a 15 year guarantee as standard.
  • Testing informationThis model was tested after we improved our mattress tests in November 2019, so the results are not directly comparable with models tested before that date. For full details on how we've changed our testing, head to our guide on 'how we test mattresses’.
Test results

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

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Best Buys and Don't Buys
We have tested 226 mattresses and found that there are 1 Don't Buys and 40 Best Buys.
Range of Mattress scores
  1. 44%
    Lowest score
  2. 66%
    Average score
  3. 81%
    Highest score
We'll show you where this model sits on the scale so that you can see how it compares to mattresses we've tested
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Put us to the test

Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.

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