While Congress retains its inherent contempt authority and may exercise it at any time, this inherent contempt process was last used by the Senate in 1934, in a Senate investigation of airlines and the U.S. Postmaster.
To make a scared cat feel more comfortable, set up a covered cave for them to retreat to. Line it with soft bedding and partially cover the entrance so that the cat will feel safely obscured inside. In the same vein of thought, you can purchase a cat tower for the cat to lie on top of.
If your cat feels they have their own place to sleep, they're less likely to invade yours. Cats take refuge in comfortable spaces, surrounded by their toys, litter box, food, and bedding. Setting up a comfortable sleeping space for your cat can give him a place to go at night that won't interfere with your sleep.