My 2 dogs sleep in their crate with their slim dog mattresses. They somehow get used to the muttresses. My other dog sleeps on our bed. I hope she gets to sleep on her mattress while I am studying or working in the other room. Btw, they are not "imprisoned," asyou termed it in your ad. The crates act as their beds when they sleep at night and afternoon nappies. Most of the time, they are outside to run and play around the house or watch the passers-by.