[toomanybeersies]

That's a very expensive sleeper bus. I took an 8 hour sleeper bus here in New Zealand, including free wifi (which you don't even need, you're sleeping), and it cost me NZ$30 (US$22), including luggage. The same thing in Vietnam cost me about $10, but had the problem that the beds were Vietnamese sized, which for a European wasn't super comfortable.

Sure, they weren't quite as fancy, but it really doesn't matter if you're sleeping, you're asleep. I guess that's the SV markup on everything that's been common in the rest of the world for a long time.

They are super convenient though, pick up and drop off in the middle of the city, and accommodation included. Go to sleep, and you wake up at your destination.