Hi violane,
Hopefully some of the members here that have purchased it will see your post and share their feedback but it’s one of their newer mattresses and there isn’t a lost of comments or feedback about it on the forum. The only mentions of it in the forum are in this topic and in posts #1 and #2 here and in posts #1 and #2 here and in posts #1 and #2 here and in posts #163 and #164 here.
I would keep in mind that each person’s experience on the same mattress can be different because how a mattress feels will depend on their body type, sleeping positions, and individual sensitivities, perceptions, and preferences so a mattress that is “perfect” for one person may not be as suitable or feel the same to someone else so I would take other people experiences on a mattress with a grain of salt because it may not represent how it will feel for you.
There is also more about the different ways that one mattress can “match” another one in post #9 here that may be helpful.
When you can’t test a mattress in person … then the most reliable source of guidance about how a mattress will “feel” based on the “averages” of most people will be the manufacturer themselves who will know more about their mattresses and how they compare to others than anyone else.
There is also more about the most important parts of the “value” of a mattress purchase in post #13 here.
As you probably know Dreamfoam is one of the members here which means that I think very highly of them and I believe they compete well with the best in the industry in terms of their quality, value, service, and transparency.
I’m also not sure if you are looking at an Amazon purchase or a purchase from their Dreamfoam site but I would also keep in mind that if you purchase from the Dreamfoam site there is a 45 day comfort guarantee and there is currently a 10% discount available (see their facebook page here).
Both of the memory foam layers in the Aria are gel memory foam (see the description here).
Phoenix