The Swedish sleeper trains between Berlin/Hamburg and Stockholm are pretty convenient, and I can highly recommend them. Apparently there’s one (run by Snälltåget) between Stockholm and Dresden now as well. When the Fehmarn tunnel opens in a few years, the trip will become a few hours shorter, hopefully opening up new routes.
The Swedish sleeper trains between Berlin/Hamburg and Stockholm are pretty convenient, and I can highly recommend them. Apparently there’s one (run by Snälltåget) between Stockholm and Dresden now as well. When the Fehmarn tunnel opens in a few years, the trip will become a few hours shorter, hopefully opening up new routes.