I have always wanted or do that. ! A dream trip !
My trip was in coach, without the sleeping berth. On one leg I did get a private room. But, before using the option, I traded it in for more miles. Rooms come with meals- gourmet meals in fact. they can be expensive... both the rooms and meals. Meals can be about $20-$25 a pop. Rooms vary in price based on availability. I watched the prices bounce around based on an algorithm. They can be had at the last minute for a very reasonable price. On most attempts- expensive, running $400-$500, for a given leg. Still, the difference is worth it. Luxury, defined.