@ai6yr
No! Micheal's, Home Depot and lot's of other stores are closer.
It looks like Micheal's stepped up to a few upholstery items to cover the void left by Joann's.
Many better choices than Uncle Bezo's slop emporium.
There are mattress manufacturing companies locally, if you have local ones maybe you can get supplies from them.
Years and years ago, I had a mattress made for my futon base, it was alternating cotton batting and foam layers, 1" each layer.
Maybe you can get what they would regard as scraps .
And it was good :D
@ai6yr We used to find furniture foam at our local military outlet store. Doesn’t exist anymore but maybe there’s still one in your area?
Also you can trim foam thickness or other dimension with an electric turkey carver. (Not making it up).
Looks like a great project!
@ai6yr
If you wanted to be swanky about it, a layer of fiberfill over the top of the foam is nice and will help create a rounded profile.
For thicker cushions I would layer dense foam at the bottom a thinner layer of softer foam, then the fiberfill.
AI Overstew