I made a mattress for that little rope bed with some old ticking material I've had for a long time. You may notice it has some tiny holes through out it, thats because I tacked it with some cotton yard, but didn't like the way it turned out so I took them out.
I may decide to tack it with some buttons later on.
My next project is to make a little patchwork quilt for it. Here are a few examples I found on google .
Not sure mine will be as nice as these, but I'll do my best :)
Blessings my friends