My cat Lexi didn’t like the bed I bought her, but prefers boxes or cloth shopping bags. So I made one from 1 sided corrugated cardboard, and now it’s fit for the Queen. I trailed some string through the middle hole to entice her and once her claws started being massaged, she forgot all about her prey.
Inner base thickness was based on width of my metal ruler. Then I doubled height for outer rim. I left a toilet paper tube in middle her to dig in.
The fabric was doubled so all edges are hidden underneath
and won’t come undone.
Snipped every 2-3″ so they could overlap along bottom.