It sounds like he’s going through some separation anxiety, especially with the change of not being allowed on the sofa anymore. I’ve had similar issues with my pup when I made changes to his routine, and it’s tough! The best thing you can do is stick to being consistent, even if it’s hard to ignore the crying. I know it’s hard, but he’ll probably adjust after a few nights. I found it helpful to leave something with my scent on it, like an old t-shirt or a blanket, to make them feel more secure.