Got an OSO mattress, tried both sides, lower back pain on both sides

Hi Phoenix,
Thank you for the detailed reply. Yes, you understood correctly the two “soft” and “firm” sides.

I did more research after reading your post, I was researching temperatures (“sleeping hot”) with relationship to memory foam. I don’t have this issue but my wife does, it is a pretty big issue for her. I know after reading some of your posts, you said that temperature is varies by from person to person.

The one thing that worries me about Novosbed is that according to sleepLiketheDead here:

“Like memory foam beds in general, Novosbed mattresses – especially the Soft and the Medium model – have an above average potential to trap heat particularly in the summer. About 13% of Novosbed owners report a problem at least some of the time.”

I know in other posts that I have read here, and learning that Latex is “generally sleeps cooler” when compared to Memory Foam.

I also looked at the Dreamfoam Ultimate Dreams Medium firm that has “gel” top, and it states that it is 33% cooler than other foams. Then I came across a post here where the person complained that their Ulitmate Dreams had softened up too much, in that topic you referred them to this post:

https://forum.mattressunderground.com/t/sweda-bliss

Where you state that one of the reasons you like Latex for the following:

This is also one of the reasons I like good quality latex because the initial softening is much less than other foams, the more gradual softening process takes much longer, and the breakdown takes even longer yet. While all foam that is used in the upper layers of a mattress will go through these three processes … good quality latex will last much longer for every stage (although all foam materials have higher quality more durable versions and lower quality less durable versions).

I am willing to give Latex another try, maybe a different brand might help?