Oh, my! Are you moving into a "transplant" housing unit when he's released? Perhaps a friend could bring you a machine and a WIP? My friend's husband had a heart transplant in July, so I know how much time you spend there! She had plenty of things to keep her occupied, ready ahead of time.
Hope your husband has an easy recovery. My friend's husband is doing well physically but is going through a depression now. He was so upbeat when released from the hospital, but has really settled into a funk right now. Friend is frustrated. Dr.s say it is combination of drugs causing it. Prayers go out to you both!