We were given a “carpet condom” by a friend once (though I must admit I hadn’t thought of it as such!). It had been slept in before, and Fister took to it instantly. We let him take it with him when he was sent to a “House of Cages”, and after that he would have nothing to do with it for weeks. When we forced his hand by placing it in his favourite position under the bed, he finally accepted and started using it again. It’s still under the bed, but he doesn’t use it much anymore, he sleeps with us up in bed every night now, and has got a new wickerwork bed under the telephone table. The fact that it’s a bit small has never worried him in the least!