12" FlexTech Firm Memory Foam Mattress

Foam mattresses are all cuttable. Just make sure to get one that is fiberglass free. Process is inflate the mattress, unzip or cut open a seam of the fabric cover, chop to size with an electric turkey knife, then put the fabric cover back on and stitch it shut if needed. We have a 12" thick mattress from Costco that we cut to size for our Murphy bed. It's super nice.

We have 4 Novaform Firm Mattresses from Costco and absolutely love them. Highly recommend

We got the king sized Norafoam a few months ago in firm and it's the best mattress I've slept on as a side sleeper. I highly recommend. 

Nova foam has a really nice firmness that you can also get cushioned by. We tried a medium firm mattress and it was like rocks. This bed accommodates all our sleeping positions. But they will literally give you a full refund and pick up the mattress so if it seems like a good fit get it.

I’ve owned both the Casper and Novaform memory foam mattresses. Loved them both. Went with 3 Casper’s for my new house and am very pleased with the comfort and sleep quality I’m getting

I used to have the same problem. Side sleeper. Switching from a coil mattress to a memory foam mattress has completely ended my shoulder pain. I didn't even think I would like a foam mattress but I would never go back. The one we got is a novaform from Costco. It's in the firm side so it's lasted quite a while without sagging.

Novaform memory foam works well for me. If your box spring is just a box with no springs, keep it. But if your box spring has springs in it then you want to get some y wood and put it on top of the box spring. Memory foam don’t work well with old box springs with the springs in them. Good luck.