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Mammoth Rise Essential AS review

£539.00 Lowest price (not in stock)

Test scoreShow Context

Key features
  • Memory foam and springs
  • Average warmth
Expert review

The Mammoth Rise Essential AS mattress claims to be constructed from 'naturally cooling medical-grade foam carefully layered on top of 1000 full-height pocket springs'. But does that guarantee you a decent night’s sleep and many years of use? Our expert lab tests have the answers, so read to see if this mattress is a dream or a nightmare.

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?
  • Is there anything else I should watch out for?
  • Should I buy it?
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Last checked by Which?

July 2022

First reviewed by Which?

December 2020

Technical specifications

General

  • SizeDouble
  • Removable mattress cover
  • Weight30.2kg
  • Length190.5cm
  • Width139cm
  • Depth23.5cm
  • Manufacturer guarantee10 years
  • Manufacturer guarantee termsMammoth mattresses have a 10 year guarantee as standard, if you register your purchase.
  • 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.

Find out how we test mattresses>
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Best Buys and Don't Buys
We have tested 211 mattresses and found that there are 0 Don't Buys and 40 Best Buys.
Range of Mattress scores
  1. 46%
    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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Full Access first month £5, then £9.99 per month, cancel at any time

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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