We have had experience with a couple of Midwest iCrates (24" size) and two very different Havanese. Buffy, who was 9 or 10 months old when we found her at the local animal shelter, has always been gentle with her bedding and most stuffed toys.
Buster, on the other hand, is a very different story. We adopted him last July from a shelter at 5 1/2 months. He was part of a group of 37 dogs dumped in Yuba City, CA by their breeder. We used the divider but could not use a small bed because he chewed it up and may have swallowed some of the fabric and stuffing before I took it away.
He is still doing this at 1 year. I have been using an old towel on the plastic tray. He shreds towels, too, but I have plenty of old towels. I just caught him pulling the stuffing out of one of Bufy's beds in the living room, so he is now on a short leash at my feet as I am typing this. When Buffy gets tired of playing with him, he may start chewing on the leash.
My husband wants me to put chili oil or bitter apple on everything inappropriate that he is inclined to chew. I will probably try the bitter apple as this is getting old.
Starr, with Buffy and Buster playing at my feet