Cutting memory foam mattress in half

Hi,

I’ve a problem, and I’m looking for help. Three years ago, I purchased a memory foam mattress (here is a description from manufacturer site: https://www.mollyflex.it/upload/blocchi/X724allegato1-1X_polionda-waterlily.pdf). Sleeping on it makes my lower back hurt. Basically, it is too soft for me. I’ve a dysocpathy and my lower back is more sensitive. On the other hand, it is perfect for my wife. I tried to sell it, but no one wants to buy it. Also, I experimented with ways to make it firmer - nothing worked. So, I came up with a potential solution - to cut it in half. My wife’d have two perfect mattresses for her, and I’d buy a firm one for me. I’d researched this topic and believe that the best tool to use is an electric knife. I’m quite good in manual works, so I believe that I’d be able to make a fairly straight line.

The only worry I have is how much damage I’ll cause to the mattress with cutting (assuming that it will be a good cut for a manual one). As usual, there is a lot of mixed information on the web. Some people state that it should be OK. On the other hand, manufacturers claim that such a procedure would damage pressure points and destroy the mattress. I am inclined to the opinion expressed by people, but I wanted to ask experts about this. That is a reason why I created this post.

Thank you in advance for your help.

KR

That mattress is around 7.5" thick so it shouldn’t be too hard to cut manually with an electric knife. I would mark the top and bottom with a centerline before cutting so your cut remains straight and perpendicular. I would also suggest using two people, one to cut and the other to gently open the two halves so the knife doesn’t get stuck while cutting.

Thanks. I’ll definitely take the advice.