As I read the article, the "revival" is more about the government trying to get people to reduce their carbon footprint when travelling, and less about popular demand.

That being said, I remember taking the sleeper from Stockholm to Elsinore in Denmark as a kid. Boarding the ferry while on the train was pretty awesome to a ten year-old. :P

I've read that travel on the Malmö-Stockholm sleeper is on the rise, especially by business travelers. Unfortunately I can find the source, but I think it was covered in SvD. I often travel Malmö-Stockholm for work, but quite often I'm not able to get a ticket because it's sold out.

I traveled from Stockholm to Malmö almost 5 years ago. I had a sit instead of a sleeping coach. It was a good experience. I got really early to Malmö without the stress of flying.