My cats love them!
I got two of these 'tents' in February and my cats spend a lot of time in them. I was only going to order one for my younger cat, as he likes to go under or into things but thankfully I ordered two, as his mother was the first to take up residence! Yes they are thin and the mat inside is not thick either but that means they are easier washed and dried. I have them up off the floor on chairs in my conservatory, so they don't require to have thick cushions. After seeing my cats in them, my neighbour bought a heavy duty, more expensive 'tent' from a pet shop but her cats didn't like it, so it was a waste of money. I am just about to order two more for my friend's cats.