Affordable solution to make bunks more comfortable?

I bought new foam at an upholstery supplier and the BIL, an upholsterer made new covers for me. The new foam makes a big difference and is cheap compared to buying toppers,new matresses and such. I also throw a cheap eggcrate foam topper on the dinette booth because it uses multiple cushions.

This is the foam supplier I used: Rochford supply They also sell awning cloth and have good upholstery cloth at discounts. I bought all the cloth for my cushions there for about $5/yd.