Mattress Online Horizon Adventurer 1000 Pocket Memory Mattress review
Test scoreShow Context
- Memory foam and springs
- Average warmth
Welcome to ‘years of dreamy sleep’ says Mattressonline about its Horizon Adventurer 1000 hybrid mattress. The ‘graphite infused’ memory foam is supposed to make it cooler to sleep on, and this is combined with a traditional pocket-sprung core to give you the best of both worlds. Will this medium-firm mattress give you a great night’s sleep? Our tough tests reveal how durable it is, how warm it is to lie one and whether the memory foam will restrict your movement – or not. Read our full review to find out.
What's included:- Pros and cons
- What is it?
- What’s it like to lie on?
- How comfortable is it?
- Is there anything else I should know?
- Should I buy it?
Last checked by Which?
November 2021
First reviewed by Which?
November 2021
Released
August 2021
Technical specifications
General
- SizeDouble
- Removable mattress cover
- Weight31.5kg
- Length190cm
- Width134cm
- Depth25.5cm
- Manufacturer guarantee5 years
- Manufacturer guarantee termsMattressonline mattresses have a guarantee of five years for this mattress.
- 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’.
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 mattressesPut 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.
Compare retailers
Prices updated dailyPrices are ordered from lowest to highest, irrespective of retailer rating or stock, and exclude any potential delivery costs. We are not able to show every possible retailer and cheaper prices may be available. When you click on a retailer link on our site, we may earn affiliate commission. This supports our not-for-profit mission to empower consumers and in no way affects our recommendations. Find out more.
- 44%Lowest score
- 66%Average score
- 81%Highest score
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.
Suggested alternatives
Related articles
Choosing the best mattress type
Our Which? experts decode the pros and cons of different types of mattress to help you find the best type for you. Find out how pocket sprung mattresses, like those from Dreams, differ from memory foam models, like the Simba mattress.
Top 10 mattresses for 2022
The best mattresses for 2020, as rated by Which? How do pocket sprung mattresses from Sealy, Dreams and Ikea compare with memory foam mattresses from Casper, Emma and Leesa? And which will stay comfortable for years to come?
Best mattress brand
Which brand makes the very best mattresses? Our mattress brand guide reveals what Which? members think of their own mattresses - rating Dunlopillo, Ikea, John Lewis, Silentnight, Simba and more.