Sam now has a wire crate and I cover 2 sides with a bath towel. As he's still only little (but growing ever so quickly :shock: ), I use a divider panel to block off half the crate. He's pretty good and does not pull or chew on this (yet!). I don't cover the front and rear of the crate so there's good airflow. On a warm day, he's in there with a few toys and no bedding. On cooler days, or at night, I put a folded bath towel on the floor. This also helps with noise insulation as the little doodle tends to be a restless sleeper and floor of his crate is a plastic tray. If he's too hot, he will shuffle his bedding to one side and simply sleep on the bare plastic.